ºÝºÝߣshows by User: RicardoValls2 / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: RicardoValls2 / Mon, 24 Feb 2020 16:18:27 GMT ºÝºÝߣShare feed for ºÝºÝߣshows by User: RicardoValls2 Research collaboration /slideshow/research-collaboration-229032302/229032302 researchcollaboration-200224161827
Research Collaboration Tips and Tactics For Early Career Researchers Robyn Keast, Michael B. Charles, & David Noble June 20, 2018]]>

Research Collaboration Tips and Tactics For Early Career Researchers Robyn Keast, Michael B. Charles, & David Noble June 20, 2018]]>
Mon, 24 Feb 2020 16:18:27 GMT /slideshow/research-collaboration-229032302/229032302 RicardoValls2@slideshare.net(RicardoValls2) Research collaboration RicardoValls2 Research Collaboration Tips and Tactics For Early Career Researchers Robyn Keast, Michael B. Charles, & David Noble June 20, 2018 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/researchcollaboration-200224161827-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Research Collaboration Tips and Tactics For Early Career Researchers Robyn Keast, Michael B. Charles, &amp; David Noble June 20, 2018
Research collaboration from Ricardo Valls P. Geo., M. Sc.
]]>
146 0 https://cdn.slidesharecdn.com/ss_thumbnails/researchcollaboration-200224161827-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Library connect-webinar---february-2020---slides 560401 /slideshow/library-connectwebinarfebruary2020slides-560401/228634813 library-connect-webinar-february-2020-slides560401-200219140904
PPP promoted by Scopus on the use of libraries in research. The libraries role in high-value profiles of research and institutions.]]>

PPP promoted by Scopus on the use of libraries in research. The libraries role in high-value profiles of research and institutions.]]>
Wed, 19 Feb 2020 14:09:04 GMT /slideshow/library-connectwebinarfebruary2020slides-560401/228634813 RicardoValls2@slideshare.net(RicardoValls2) Library connect-webinar---february-2020---slides 560401 RicardoValls2 PPP promoted by Scopus on the use of libraries in research. The libraries role in high-value profiles of research and institutions. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/library-connect-webinar-february-2020-slides560401-200219140904-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> PPP promoted by Scopus on the use of libraries in research. The libraries role in high-value profiles of research and institutions.
Library connect-webinar---february-2020---slides 560401 from Ricardo Valls P. Geo., M. Sc.
]]>
37 0 https://cdn.slidesharecdn.com/ss_thumbnails/library-connect-webinar-february-2020-slides560401-200219140904-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Quality Assurance & Quality Control for the field work /slideshow/quality-assurance-quality-control-for-the-field-work/224402030 qaandqc-200125215419
Valls Geoconsultant (VG) is offering a quality assurance program for the field sampling procedures which include collection, labeling, and shipping components. VG also has established a series of procedures for logging and general mapping. This is especially important in larger projects, where more than one geologist is doing field descriptions. Part II of this series will deal in more details with the correct procedures of other type of exploration work. VG has thus implemented a procedure for the field naming of rocks that follows the model: ALTERATION / (QUALIFIER & NAME) / TEXTURE / MINERALIZATION. A system for the codification of the alteration and mineralization type and intensity is also incorporated in these procedures. For sequential samplings like pitting or drilling, we should take field duplicate samples every 40 samples when exploring for gold, or every 20 when exploring for other metals. We should use blanks every 33 samples, samples for external controls every 100 samples and standard samples with each batch of samples send for processing at 50 samples intervals. We should codify the sampling booklets to show the type of control for the sample. ]]>

Valls Geoconsultant (VG) is offering a quality assurance program for the field sampling procedures which include collection, labeling, and shipping components. VG also has established a series of procedures for logging and general mapping. This is especially important in larger projects, where more than one geologist is doing field descriptions. Part II of this series will deal in more details with the correct procedures of other type of exploration work. VG has thus implemented a procedure for the field naming of rocks that follows the model: ALTERATION / (QUALIFIER & NAME) / TEXTURE / MINERALIZATION. A system for the codification of the alteration and mineralization type and intensity is also incorporated in these procedures. For sequential samplings like pitting or drilling, we should take field duplicate samples every 40 samples when exploring for gold, or every 20 when exploring for other metals. We should use blanks every 33 samples, samples for external controls every 100 samples and standard samples with each batch of samples send for processing at 50 samples intervals. We should codify the sampling booklets to show the type of control for the sample. ]]>
Sat, 25 Jan 2020 21:54:19 GMT /slideshow/quality-assurance-quality-control-for-the-field-work/224402030 RicardoValls2@slideshare.net(RicardoValls2) Quality Assurance & Quality Control for the field work RicardoValls2 Valls Geoconsultant (VG) is offering a quality assurance program for the field sampling procedures which include collection, labeling, and shipping components. VG also has established a series of procedures for logging and general mapping. This is especially important in larger projects, where more than one geologist is doing field descriptions. Part II of this series will deal in more details with the correct procedures of other type of exploration work. VG has thus implemented a procedure for the field naming of rocks that follows the model: ALTERATION / (QUALIFIER & NAME) / TEXTURE / MINERALIZATION. A system for the codification of the alteration and mineralization type and intensity is also incorporated in these procedures. For sequential samplings like pitting or drilling, we should take field duplicate samples every 40 samples when exploring for gold, or every 20 when exploring for other metals. We should use blanks every 33 samples, samples for external controls every 100 samples and standard samples with each batch of samples send for processing at 50 samples intervals. We should codify the sampling booklets to show the type of control for the sample. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/qaandqc-200125215419-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Valls Geoconsultant (VG) is offering a quality assurance program for the field sampling procedures which include collection, labeling, and shipping components. VG also has established a series of procedures for logging and general mapping. This is especially important in larger projects, where more than one geologist is doing field descriptions. Part II of this series will deal in more details with the correct procedures of other type of exploration work. VG has thus implemented a procedure for the field naming of rocks that follows the model: ALTERATION / (QUALIFIER &amp; NAME) / TEXTURE / MINERALIZATION. A system for the codification of the alteration and mineralization type and intensity is also incorporated in these procedures. For sequential samplings like pitting or drilling, we should take field duplicate samples every 40 samples when exploring for gold, or every 20 when exploring for other metals. We should use blanks every 33 samples, samples for external controls every 100 samples and standard samples with each batch of samples send for processing at 50 samples intervals. We should codify the sampling booklets to show the type of control for the sample.
Quality Assurance & Quality Control for the field work from Ricardo Valls P. Geo., M. Sc.
]]>
165 0 https://cdn.slidesharecdn.com/ss_thumbnails/qaandqc-200125215419-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Basic Information about the NI 43 101 /slideshow/basic-information-about-the-ni-43-101/224352532 acercadelni43-101-200125192801
A summary of several presentations organized by the PGO, the TSX, and others about the basics of the NI 43-101, orientations on how to write a technical report, when to write it, who can write it, and common errors.]]>

A summary of several presentations organized by the PGO, the TSX, and others about the basics of the NI 43-101, orientations on how to write a technical report, when to write it, who can write it, and common errors.]]>
Sat, 25 Jan 2020 19:28:01 GMT /slideshow/basic-information-about-the-ni-43-101/224352532 RicardoValls2@slideshare.net(RicardoValls2) Basic Information about the NI 43 101 RicardoValls2 A summary of several presentations organized by the PGO, the TSX, and others about the basics of the NI 43-101, orientations on how to write a technical report, when to write it, who can write it, and common errors. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/acercadelni43-101-200125192801-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> A summary of several presentations organized by the PGO, the TSX, and others about the basics of the NI 43-101, orientations on how to write a technical report, when to write it, who can write it, and common errors.
Basic Information about the NI 43 101 from Ricardo Valls P. Geo., M. Sc.
]]>
23 0 https://cdn.slidesharecdn.com/ss_thumbnails/acercadelni43-101-200125192801-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Golden droplets webinar table of content /slideshow/golden-droplets-webinar-table-of-content/223127014 goldendropletswebinartableofcontent-200122185115
A table of content of the webinar series Golden Droplets, with links to each episode and a short description of the content.]]>

A table of content of the webinar series Golden Droplets, with links to each episode and a short description of the content.]]>
Wed, 22 Jan 2020 18:51:15 GMT /slideshow/golden-droplets-webinar-table-of-content/223127014 RicardoValls2@slideshare.net(RicardoValls2) Golden droplets webinar table of content RicardoValls2 A table of content of the webinar series Golden Droplets, with links to each episode and a short description of the content. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/goldendropletswebinartableofcontent-200122185115-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> A table of content of the webinar series Golden Droplets, with links to each episode and a short description of the content.
Golden droplets webinar table of content from Ricardo Valls P. Geo., M. Sc.
]]>
36 0 https://cdn.slidesharecdn.com/ss_thumbnails/goldendropletswebinartableofcontent-200122185115-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Kudos impact webinar_no_3_oct19 (1) /slideshow/kudos-impact-webinarno3oct19-1/190354361 kudosimpactwebinarno3oct191-191104145931
How to use Kudos to advertise your work. Accelerating Research Impact Join a global community of researchers using Kudos to communicate work more effectively and accelerate its positive impact in the world.]]>

How to use Kudos to advertise your work. Accelerating Research Impact Join a global community of researchers using Kudos to communicate work more effectively and accelerate its positive impact in the world.]]>
Mon, 04 Nov 2019 14:59:30 GMT /slideshow/kudos-impact-webinarno3oct19-1/190354361 RicardoValls2@slideshare.net(RicardoValls2) Kudos impact webinar_no_3_oct19 (1) RicardoValls2 How to use Kudos to advertise your work. Accelerating Research Impact Join a global community of researchers using Kudos to communicate work more effectively and accelerate its positive impact in the world. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/kudosimpactwebinarno3oct191-191104145931-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> How to use Kudos to advertise your work. Accelerating Research Impact Join a global community of researchers using Kudos to communicate work more effectively and accelerate its positive impact in the world.
Kudos impact webinar_no_3_oct19 (1) from Ricardo Valls P. Geo., M. Sc.
]]>
79 0 https://cdn.slidesharecdn.com/ss_thumbnails/kudosimpactwebinarno3oct191-191104145931-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Entendiendo las bases del NI 43 101 https://es.slideshare.net/RicardoValls2/entendiendo-las-bases-del-ni-43-101 acercadelni43-101-191102150042
Introducción al tema del NI 43-101. Esto es parte de un programa de conferencias organizadas entre P. Geo. M. Sc. Ricardo Valls de Valls Geoconsultant y el Dr. Rafael Rodriguez de la Facultad de Minas de la Universidad Nacional de Medellín para cumplimentar la formación de los estudiantes de geología del último año.]]>

Introducción al tema del NI 43-101. Esto es parte de un programa de conferencias organizadas entre P. Geo. M. Sc. Ricardo Valls de Valls Geoconsultant y el Dr. Rafael Rodriguez de la Facultad de Minas de la Universidad Nacional de Medellín para cumplimentar la formación de los estudiantes de geología del último año.]]>
Sat, 02 Nov 2019 15:00:42 GMT https://es.slideshare.net/RicardoValls2/entendiendo-las-bases-del-ni-43-101 RicardoValls2@slideshare.net(RicardoValls2) Entendiendo las bases del NI 43 101 RicardoValls2 Introducción al tema del NI 43-101. Esto es parte de un programa de conferencias organizadas entre P. Geo. M. Sc. Ricardo Valls de Valls Geoconsultant y el Dr. Rafael Rodriguez de la Facultad de Minas de la Universidad Nacional de Medellín para cumplimentar la formación de los estudiantes de geología del último año. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/acercadelni43-101-191102150042-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Introducción al tema del NI 43-101. Esto es parte de un programa de conferencias organizadas entre P. Geo. M. Sc. Ricardo Valls de Valls Geoconsultant y el Dr. Rafael Rodriguez de la Facultad de Minas de la Universidad Nacional de Medellín para cumplimentar la formación de los estudiantes de geología del último año.
from Ricardo Valls P. Geo., M. Sc.
]]>
149 0 https://cdn.slidesharecdn.com/ss_thumbnails/acercadelni43-101-191102150042-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Ni 43 101 presentation /slideshow/ni-43-101-presentation/182873327 ni43-101presentation-191016181320
Update on the NI 43-101 requirements]]>

Update on the NI 43-101 requirements]]>
Wed, 16 Oct 2019 18:13:20 GMT /slideshow/ni-43-101-presentation/182873327 RicardoValls2@slideshare.net(RicardoValls2) Ni 43 101 presentation RicardoValls2 Update on the NI 43-101 requirements <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/ni43-101presentation-191016181320-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Update on the NI 43-101 requirements
Ni 43 101 presentation from Ricardo Valls P. Geo., M. Sc.
]]>
118 0 https://cdn.slidesharecdn.com/ss_thumbnails/ni43-101presentation-191016181320-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution... Part 10 of 10. /slideshow/geological-and-geochemical-evolution-part-10-of-10/152634263 section10-190629140051
Field trip description]]>

Field trip description]]>
Sat, 29 Jun 2019 14:00:51 GMT /slideshow/geological-and-geochemical-evolution-part-10-of-10/152634263 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution... Part 10 of 10. RicardoValls2 Field trip description <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section10-190629140051-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Field trip description
Geological and Geochemical Evolution... Part 10 of 10. from Ricardo Valls P. Geo., M. Sc.
]]>
39 1 https://cdn.slidesharecdn.com/ss_thumbnails/section10-190629140051-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution... Part 9 of 10. /slideshow/geological-and-geochemical-evolution-part-9-of-10/152378334 section9-190628123917
A FIELD TRIP THROUGH CENTRAL GUATEMALA The NW corner of the Caribbean Plate is complicated by the presence of a continental type block, the Chortis Block, within a mostly oceanic plate and a combination of a slip-strike boundary to the north running from the Belize-Guatemala border with a subduction zone to the west where the Cocos Plate is subducted beneath the Caribbean Plate, and an extinguished subduction zones to the north and south, were the Caribbean Plate was temporarily subducted beneath the Maya and Chortis Block. The Author believes that the migration of the Chortis block in an S-SW and then N direction was one of the mechanisms responsible for the changes observed among the ophiolitic complexes in Guatemala. The Author introduces the idea of the pre-existence of a trench associated with the Motagua-Jalomáx slip-strike fault system near the north border of Honduras, currently filled up and destroyed by the northward migration of the Chortis Block. Also, he introduces the idea of an orogenic event - The Chuacús Orogeny - probably the same age as the Laramide Orogeny in North America. The Author postulate that the Chuacús Orogeny pushed younger ophiolites complexes in Guatemala to the surface and is responsible for the metamorphic basin of Central Guatemala - The Chuacús Series. The obduction of the oldest ophiolites on the western end of the belts may have being caused by the passing by of the Jamaica block on its way to its present position south of Cuba.]]>

A FIELD TRIP THROUGH CENTRAL GUATEMALA The NW corner of the Caribbean Plate is complicated by the presence of a continental type block, the Chortis Block, within a mostly oceanic plate and a combination of a slip-strike boundary to the north running from the Belize-Guatemala border with a subduction zone to the west where the Cocos Plate is subducted beneath the Caribbean Plate, and an extinguished subduction zones to the north and south, were the Caribbean Plate was temporarily subducted beneath the Maya and Chortis Block. The Author believes that the migration of the Chortis block in an S-SW and then N direction was one of the mechanisms responsible for the changes observed among the ophiolitic complexes in Guatemala. The Author introduces the idea of the pre-existence of a trench associated with the Motagua-Jalomáx slip-strike fault system near the north border of Honduras, currently filled up and destroyed by the northward migration of the Chortis Block. Also, he introduces the idea of an orogenic event - The Chuacús Orogeny - probably the same age as the Laramide Orogeny in North America. The Author postulate that the Chuacús Orogeny pushed younger ophiolites complexes in Guatemala to the surface and is responsible for the metamorphic basin of Central Guatemala - The Chuacús Series. The obduction of the oldest ophiolites on the western end of the belts may have being caused by the passing by of the Jamaica block on its way to its present position south of Cuba.]]>
Fri, 28 Jun 2019 12:39:17 GMT /slideshow/geological-and-geochemical-evolution-part-9-of-10/152378334 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution... Part 9 of 10. RicardoValls2 A FIELD TRIP THROUGH CENTRAL GUATEMALA The NW corner of the Caribbean Plate is complicated by the presence of a continental type block, the Chortis Block, within a mostly oceanic plate and a combination of a slip-strike boundary to the north running from the Belize-Guatemala border with a subduction zone to the west where the Cocos Plate is subducted beneath the Caribbean Plate, and an extinguished subduction zones to the north and south, were the Caribbean Plate was temporarily subducted beneath the Maya and Chortis Block. The Author believes that the migration of the Chortis block in an S-SW and then N direction was one of the mechanisms responsible for the changes observed among the ophiolitic complexes in Guatemala. The Author introduces the idea of the pre-existence of a trench associated with the Motagua-Jalomáx slip-strike fault system near the north border of Honduras, currently filled up and destroyed by the northward migration of the Chortis Block. Also, he introduces the idea of an orogenic event - The Chuacús Orogeny - probably the same age as the Laramide Orogeny in North America. The Author postulate that the Chuacús Orogeny pushed younger ophiolites complexes in Guatemala to the surface and is responsible for the metamorphic basin of Central Guatemala - The Chuacús Series. The obduction of the oldest ophiolites on the western end of the belts may have being caused by the passing by of the Jamaica block on its way to its present position south of Cuba. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section9-190628123917-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> A FIELD TRIP THROUGH CENTRAL GUATEMALA The NW corner of the Caribbean Plate is complicated by the presence of a continental type block, the Chortis Block, within a mostly oceanic plate and a combination of a slip-strike boundary to the north running from the Belize-Guatemala border with a subduction zone to the west where the Cocos Plate is subducted beneath the Caribbean Plate, and an extinguished subduction zones to the north and south, were the Caribbean Plate was temporarily subducted beneath the Maya and Chortis Block. The Author believes that the migration of the Chortis block in an S-SW and then N direction was one of the mechanisms responsible for the changes observed among the ophiolitic complexes in Guatemala. The Author introduces the idea of the pre-existence of a trench associated with the Motagua-Jalomáx slip-strike fault system near the north border of Honduras, currently filled up and destroyed by the northward migration of the Chortis Block. Also, he introduces the idea of an orogenic event - The Chuacús Orogeny - probably the same age as the Laramide Orogeny in North America. The Author postulate that the Chuacús Orogeny pushed younger ophiolites complexes in Guatemala to the surface and is responsible for the metamorphic basin of Central Guatemala - The Chuacús Series. The obduction of the oldest ophiolites on the western end of the belts may have being caused by the passing by of the Jamaica block on its way to its present position south of Cuba.
Geological and Geochemical Evolution... Part 9 of 10. from Ricardo Valls P. Geo., M. Sc.
]]>
37 1 https://cdn.slidesharecdn.com/ss_thumbnails/section9-190628123917-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution... Part 8 of 10 /slideshow/geological-and-geochemical-evolution-part-8-of-10/152188462 section8-190627121639
NICKEL LATERITE DEPOSITS Geology and Lineament Analysis of the Baja Verapaz Ophiolitic Complex Summary The Baja Verapaz Ophiolitic Complex encompasses an ophiolitic complex protruding metamorphic rocks from the Chuacús Series in Central Guatemala. The targeted mineralization is represented by two types of Nickel-Cobalt laterite deposits, an in situ type and an alluvial-deluvial type. A typical laterite profile consists of a Limonitic Horizon which is separated from the Saprolite Horizon by a transition zone named the Mottled Zone. The Saprolite Horizon lays over the Saprock that transitions into the Bedrock, usually represented by serpentinized olivine-rich Lherzolites or Dunites. The usual thickness of these deposits averages 33 meters, but there are known intersections of more than 90 meters in the area. Nickel content varies from 0.4% in the Limonite Horizon to over 1.5% at the bottom of the Saprolite Horizon. Higher values are sometime found associated to the presence of Garnierite. Cobalt values vary from 0.08 to 0.2%. There is also the presence of traces of Au and PGM, usually associated to the Mottled Zone. The lineament analysis completed over an area of 1,541.22 km2 encompassing the whole Baja Verapaz ophiolitic complex, was aimed to identify other potential zones of laterite development in this area. The lineament analysis was completed using a combination of topographic maps in electronic format, aero photos and a D.E.M. of the region and included an aeromagnetic survey of the area. The study also included image interpretation of satellite images and 3D strain and stress analysis. The study indicated the existence of new potential targets and clarified the relationship between the known deposits.]]>

NICKEL LATERITE DEPOSITS Geology and Lineament Analysis of the Baja Verapaz Ophiolitic Complex Summary The Baja Verapaz Ophiolitic Complex encompasses an ophiolitic complex protruding metamorphic rocks from the Chuacús Series in Central Guatemala. The targeted mineralization is represented by two types of Nickel-Cobalt laterite deposits, an in situ type and an alluvial-deluvial type. A typical laterite profile consists of a Limonitic Horizon which is separated from the Saprolite Horizon by a transition zone named the Mottled Zone. The Saprolite Horizon lays over the Saprock that transitions into the Bedrock, usually represented by serpentinized olivine-rich Lherzolites or Dunites. The usual thickness of these deposits averages 33 meters, but there are known intersections of more than 90 meters in the area. Nickel content varies from 0.4% in the Limonite Horizon to over 1.5% at the bottom of the Saprolite Horizon. Higher values are sometime found associated to the presence of Garnierite. Cobalt values vary from 0.08 to 0.2%. There is also the presence of traces of Au and PGM, usually associated to the Mottled Zone. The lineament analysis completed over an area of 1,541.22 km2 encompassing the whole Baja Verapaz ophiolitic complex, was aimed to identify other potential zones of laterite development in this area. The lineament analysis was completed using a combination of topographic maps in electronic format, aero photos and a D.E.M. of the region and included an aeromagnetic survey of the area. The study also included image interpretation of satellite images and 3D strain and stress analysis. The study indicated the existence of new potential targets and clarified the relationship between the known deposits.]]>
Thu, 27 Jun 2019 12:16:39 GMT /slideshow/geological-and-geochemical-evolution-part-8-of-10/152188462 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution... Part 8 of 10 RicardoValls2 NICKEL LATERITE DEPOSITS Geology and Lineament Analysis of the Baja Verapaz Ophiolitic Complex Summary The Baja Verapaz Ophiolitic Complex encompasses an ophiolitic complex protruding metamorphic rocks from the Chuacús Series in Central Guatemala. The targeted mineralization is represented by two types of Nickel-Cobalt laterite deposits, an in situ type and an alluvial-deluvial type. A typical laterite profile consists of a Limonitic Horizon which is separated from the Saprolite Horizon by a transition zone named the Mottled Zone. The Saprolite Horizon lays over the Saprock that transitions into the Bedrock, usually represented by serpentinized olivine-rich Lherzolites or Dunites. The usual thickness of these deposits averages 33 meters, but there are known intersections of more than 90 meters in the area. Nickel content varies from 0.4% in the Limonite Horizon to over 1.5% at the bottom of the Saprolite Horizon. Higher values are sometime found associated to the presence of Garnierite. Cobalt values vary from 0.08 to 0.2%. There is also the presence of traces of Au and PGM, usually associated to the Mottled Zone. The lineament analysis completed over an area of 1,541.22 km2 encompassing the whole Baja Verapaz ophiolitic complex, was aimed to identify other potential zones of laterite development in this area. The lineament analysis was completed using a combination of topographic maps in electronic format, aero photos and a D.E.M. of the region and included an aeromagnetic survey of the area. The study also included image interpretation of satellite images and 3D strain and stress analysis. The study indicated the existence of new potential targets and clarified the relationship between the known deposits. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section8-190627121639-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> NICKEL LATERITE DEPOSITS Geology and Lineament Analysis of the Baja Verapaz Ophiolitic Complex Summary The Baja Verapaz Ophiolitic Complex encompasses an ophiolitic complex protruding metamorphic rocks from the Chuacús Series in Central Guatemala. The targeted mineralization is represented by two types of Nickel-Cobalt laterite deposits, an in situ type and an alluvial-deluvial type. A typical laterite profile consists of a Limonitic Horizon which is separated from the Saprolite Horizon by a transition zone named the Mottled Zone. The Saprolite Horizon lays over the Saprock that transitions into the Bedrock, usually represented by serpentinized olivine-rich Lherzolites or Dunites. The usual thickness of these deposits averages 33 meters, but there are known intersections of more than 90 meters in the area. Nickel content varies from 0.4% in the Limonite Horizon to over 1.5% at the bottom of the Saprolite Horizon. Higher values are sometime found associated to the presence of Garnierite. Cobalt values vary from 0.08 to 0.2%. There is also the presence of traces of Au and PGM, usually associated to the Mottled Zone. The lineament analysis completed over an area of 1,541.22 km2 encompassing the whole Baja Verapaz ophiolitic complex, was aimed to identify other potential zones of laterite development in this area. The lineament analysis was completed using a combination of topographic maps in electronic format, aero photos and a D.E.M. of the region and included an aeromagnetic survey of the area. The study also included image interpretation of satellite images and 3D strain and stress analysis. The study indicated the existence of new potential targets and clarified the relationship between the known deposits.
Geological and Geochemical Evolution... Part 8 of 10 from Ricardo Valls P. Geo., M. Sc.
]]>
65 1 https://cdn.slidesharecdn.com/ss_thumbnails/section8-190627121639-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution... Part 7 of 10 /slideshow/geological-and-geochemical-evolution-part-7-of-10/151975650 section7-190626131522
THE PADRE ANTONIO COPPER PROJECT The Padre Antonio Project is located in western Guatemala, specifically, east of the village of Santa Eulalia in the Huehuetenango Department. The property has an area of 24 km2 in rugged terrain, which range in elevation between 2,000 and 2,500 meters (AMSL). The Padre Antonio Project was discovered by an Italian immigrant turned prospector after he organized a stream sediment sampling of the Tziquiná river that crosses the area. Near the highest copper value samples, located almost at the centre of the license, Mr. Bruno Montuori then organized the digging of a 7 meters pit that found massive chalcopyrite and abundant secondary copper minerals.]]>

THE PADRE ANTONIO COPPER PROJECT The Padre Antonio Project is located in western Guatemala, specifically, east of the village of Santa Eulalia in the Huehuetenango Department. The property has an area of 24 km2 in rugged terrain, which range in elevation between 2,000 and 2,500 meters (AMSL). The Padre Antonio Project was discovered by an Italian immigrant turned prospector after he organized a stream sediment sampling of the Tziquiná river that crosses the area. Near the highest copper value samples, located almost at the centre of the license, Mr. Bruno Montuori then organized the digging of a 7 meters pit that found massive chalcopyrite and abundant secondary copper minerals.]]>
Wed, 26 Jun 2019 13:15:22 GMT /slideshow/geological-and-geochemical-evolution-part-7-of-10/151975650 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution... Part 7 of 10 RicardoValls2 THE PADRE ANTONIO COPPER PROJECT The Padre Antonio Project is located in western Guatemala, specifically, east of the village of Santa Eulalia in the Huehuetenango Department. The property has an area of 24 km2 in rugged terrain, which range in elevation between 2,000 and 2,500 meters (AMSL). The Padre Antonio Project was discovered by an Italian immigrant turned prospector after he organized a stream sediment sampling of the Tziquiná river that crosses the area. Near the highest copper value samples, located almost at the centre of the license, Mr. Bruno Montuori then organized the digging of a 7 meters pit that found massive chalcopyrite and abundant secondary copper minerals. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section7-190626131522-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> THE PADRE ANTONIO COPPER PROJECT The Padre Antonio Project is located in western Guatemala, specifically, east of the village of Santa Eulalia in the Huehuetenango Department. The property has an area of 24 km2 in rugged terrain, which range in elevation between 2,000 and 2,500 meters (AMSL). The Padre Antonio Project was discovered by an Italian immigrant turned prospector after he organized a stream sediment sampling of the Tziquiná river that crosses the area. Near the highest copper value samples, located almost at the centre of the license, Mr. Bruno Montuori then organized the digging of a 7 meters pit that found massive chalcopyrite and abundant secondary copper minerals.
Geological and Geochemical Evolution... Part 7 of 10 from Ricardo Valls P. Geo., M. Sc.
]]>
64 1 https://cdn.slidesharecdn.com/ss_thumbnails/section7-190626131522-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution... Part 6 of 10 /slideshow/geological-and-geochemical-evolution-part-6-of-10/151736617 section6-190625115902
The gold potential of Guatemala Most of the work reflected in this section is based on a geochemical and geological survey conducted by the Korean International Cooperation Agency (KOICA) and the Korean Institute of Geology, Mining, and Materials (KIGAM) in 1998. The main objective of the Korean surveys was to fulfill the geochemical exploration for discriminating the characteristics of mineralization of the Motagua Basin and its vicinities. The author also used the data from previous exploration studies (mainly pitting and assay results) conducted by Transmetales Ltda. (Transmetales), Cominco Resources International Limited (Cominco), and other companies. The ore deposits in the east and east central Guatemala are generally divided into three types of deposits: Vein type of gold-silver and lead-zinc deposits widely distributed in volcanic and granite intrusives especially in the southern part of Motagua fault zone; Nickel-chromium deposits associated with ultramafic serpentinite and peridotite rocks in the middle part of Guatemala; and Antimony and polymetallic ore deposits related with Tertiary rock which is exposed in the regions of mid-Tertiary volcanic activity. For the most part they form pods or narrow veins, which appear to be widely scattered throughout the dissected volcanic plateau. From the Paleozoic to the Quaternary, tectonic and magmatic activity has occurred in different occasions which have caused a diversity of ore deposits. The present section compiles the existing information on the Izabal District and the La Unión Area, south of the Izabal Lake. It shows the gold potential of several targets in the region.]]>

The gold potential of Guatemala Most of the work reflected in this section is based on a geochemical and geological survey conducted by the Korean International Cooperation Agency (KOICA) and the Korean Institute of Geology, Mining, and Materials (KIGAM) in 1998. The main objective of the Korean surveys was to fulfill the geochemical exploration for discriminating the characteristics of mineralization of the Motagua Basin and its vicinities. The author also used the data from previous exploration studies (mainly pitting and assay results) conducted by Transmetales Ltda. (Transmetales), Cominco Resources International Limited (Cominco), and other companies. The ore deposits in the east and east central Guatemala are generally divided into three types of deposits: Vein type of gold-silver and lead-zinc deposits widely distributed in volcanic and granite intrusives especially in the southern part of Motagua fault zone; Nickel-chromium deposits associated with ultramafic serpentinite and peridotite rocks in the middle part of Guatemala; and Antimony and polymetallic ore deposits related with Tertiary rock which is exposed in the regions of mid-Tertiary volcanic activity. For the most part they form pods or narrow veins, which appear to be widely scattered throughout the dissected volcanic plateau. From the Paleozoic to the Quaternary, tectonic and magmatic activity has occurred in different occasions which have caused a diversity of ore deposits. The present section compiles the existing information on the Izabal District and the La Unión Area, south of the Izabal Lake. It shows the gold potential of several targets in the region.]]>
Tue, 25 Jun 2019 11:59:02 GMT /slideshow/geological-and-geochemical-evolution-part-6-of-10/151736617 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution... Part 6 of 10 RicardoValls2 The gold potential of Guatemala Most of the work reflected in this section is based on a geochemical and geological survey conducted by the Korean International Cooperation Agency (KOICA) and the Korean Institute of Geology, Mining, and Materials (KIGAM) in 1998. The main objective of the Korean surveys was to fulfill the geochemical exploration for discriminating the characteristics of mineralization of the Motagua Basin and its vicinities. The author also used the data from previous exploration studies (mainly pitting and assay results) conducted by Transmetales Ltda. (Transmetales), Cominco Resources International Limited (Cominco), and other companies. The ore deposits in the east and east central Guatemala are generally divided into three types of deposits: Vein type of gold-silver and lead-zinc deposits widely distributed in volcanic and granite intrusives especially in the southern part of Motagua fault zone; Nickel-chromium deposits associated with ultramafic serpentinite and peridotite rocks in the middle part of Guatemala; and Antimony and polymetallic ore deposits related with Tertiary rock which is exposed in the regions of mid-Tertiary volcanic activity. For the most part they form pods or narrow veins, which appear to be widely scattered throughout the dissected volcanic plateau. From the Paleozoic to the Quaternary, tectonic and magmatic activity has occurred in different occasions which have caused a diversity of ore deposits. The present section compiles the existing information on the Izabal District and the La Unión Area, south of the Izabal Lake. It shows the gold potential of several targets in the region. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section6-190625115902-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> The gold potential of Guatemala Most of the work reflected in this section is based on a geochemical and geological survey conducted by the Korean International Cooperation Agency (KOICA) and the Korean Institute of Geology, Mining, and Materials (KIGAM) in 1998. The main objective of the Korean surveys was to fulfill the geochemical exploration for discriminating the characteristics of mineralization of the Motagua Basin and its vicinities. The author also used the data from previous exploration studies (mainly pitting and assay results) conducted by Transmetales Ltda. (Transmetales), Cominco Resources International Limited (Cominco), and other companies. The ore deposits in the east and east central Guatemala are generally divided into three types of deposits: Vein type of gold-silver and lead-zinc deposits widely distributed in volcanic and granite intrusives especially in the southern part of Motagua fault zone; Nickel-chromium deposits associated with ultramafic serpentinite and peridotite rocks in the middle part of Guatemala; and Antimony and polymetallic ore deposits related with Tertiary rock which is exposed in the regions of mid-Tertiary volcanic activity. For the most part they form pods or narrow veins, which appear to be widely scattered throughout the dissected volcanic plateau. From the Paleozoic to the Quaternary, tectonic and magmatic activity has occurred in different occasions which have caused a diversity of ore deposits. The present section compiles the existing information on the Izabal District and the La Unión Area, south of the Izabal Lake. It shows the gold potential of several targets in the region.
Geological and Geochemical Evolution... Part 6 of 10 from Ricardo Valls P. Geo., M. Sc.
]]>
105 1 https://cdn.slidesharecdn.com/ss_thumbnails/section6-190625115902-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 5 of 10. /slideshow/geological-and-geochemical-evolution-of-guatemalas-ophiolitic-belts-and-their-mineral-potential-part-5-of-10/151509891 section5-190624121423
Regional Geology of Guatemala]]>

Regional Geology of Guatemala]]>
Mon, 24 Jun 2019 12:14:23 GMT /slideshow/geological-and-geochemical-evolution-of-guatemalas-ophiolitic-belts-and-their-mineral-potential-part-5-of-10/151509891 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 5 of 10. RicardoValls2 Regional Geology of Guatemala <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section5-190624121423-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Regional Geology of Guatemala
Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 5 of 10. from Ricardo Valls P. Geo., M. Sc.
]]>
169 4 https://cdn.slidesharecdn.com/ss_thumbnails/section5-190624121423-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution... Part 4 of 10 /slideshow/geological-and-geochemical-evolution-part-4-of-10/151144587 section4-190621181232
Model of the evolution of the ophiolitic belts in Guatemala.]]>

Model of the evolution of the ophiolitic belts in Guatemala.]]>
Fri, 21 Jun 2019 18:12:32 GMT /slideshow/geological-and-geochemical-evolution-part-4-of-10/151144587 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution... Part 4 of 10 RicardoValls2 Model of the evolution of the ophiolitic belts in Guatemala. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section4-190621181232-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Model of the evolution of the ophiolitic belts in Guatemala.
Geological and Geochemical Evolution... Part 4 of 10 from Ricardo Valls P. Geo., M. Sc.
]]>
55 1 https://cdn.slidesharecdn.com/ss_thumbnails/section4-190621181232-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 3 of 10. /RicardoValls2/geological-and-geochemical-evolution-of-guatemalas-ophiolitic-belts-and-their-mineral-potential-part-3-of-10 section3-190620153736
PETROGRAPHY OF THE GUATEMALAN OPHIOLITIC BELTS AND THE SERPENTINIZATION PROCESSES.]]>

PETROGRAPHY OF THE GUATEMALAN OPHIOLITIC BELTS AND THE SERPENTINIZATION PROCESSES.]]>
Thu, 20 Jun 2019 15:37:36 GMT /RicardoValls2/geological-and-geochemical-evolution-of-guatemalas-ophiolitic-belts-and-their-mineral-potential-part-3-of-10 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 3 of 10. RicardoValls2 PETROGRAPHY OF THE GUATEMALAN OPHIOLITIC BELTS AND THE SERPENTINIZATION PROCESSES. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section3-190620153736-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> PETROGRAPHY OF THE GUATEMALAN OPHIOLITIC BELTS AND THE SERPENTINIZATION PROCESSES.
Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 3 of 10. from Ricardo Valls P. Geo., M. Sc.
]]>
67 1 https://cdn.slidesharecdn.com/ss_thumbnails/section3-190620153736-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 2 of 10. /slideshow/geological-and-geochemical-evolution-of-guatemalas-ophiolitic-belts-and-their-mineral-potential-part-2-of-10/150681475 section2-190619181224
Ophiolites Around the World and a comparison with Guatemalan Ophiolites]]>

Ophiolites Around the World and a comparison with Guatemalan Ophiolites]]>
Wed, 19 Jun 2019 18:12:24 GMT /slideshow/geological-and-geochemical-evolution-of-guatemalas-ophiolitic-belts-and-their-mineral-potential-part-2-of-10/150681475 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 2 of 10. RicardoValls2 Ophiolites Around the World and a comparison with Guatemalan Ophiolites <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section2-190619181224-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Ophiolites Around the World and a comparison with Guatemalan Ophiolites
Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 2 of 10. from Ricardo Valls P. Geo., M. Sc.
]]>
75 1 https://cdn.slidesharecdn.com/ss_thumbnails/section2-190619181224-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 1 of 10. /slideshow/geological-and-geochemical-evolution-of-guatemalas-ophiolitic-belts-and-their-mineral-potential-part-1-of-10/150467373 section1-190618212928
Part 1 of 10 Introduction to the Ophiolitic Belts INTRODUCTION The aim of this book is to provide an overview of the ophiolitic processes associated with the Motagua Suture Zone in Guatemala and to show their mineral potential. It includes the final version of the Field Trip to Guatemala designed by the Author. In preparing this book I have compiled information from different sources, including several internet sources, combined with my personal experiences in the mapping of the area and help and cooperation of the geologists from the Guatemalan Ministry of Energy and Mines. The Caribbean Plate (Fig. 1) is the result of the Mesozoic-Present interaction of the Nazca, Cocos, North, and South American plates. The margins of these plates are represented by large deformed belts which resulted from several compressional episodes that started in the Cretaceous and were followed by tensional and strike-slip tectonics. The present-day north-western margin of the Caribbean Plate crops out in Guatemala along the Motagua Suture Zone (MSZ). This zone links the Meso-American trench with the Cayman Islands extensional system as shown in Fig. 2. The MSZ represents a sinistral shear-zone between the Maya Continental Block (MCB) to the north and the Chortis Continental Block (ChCB) to the south. The MSZ includes the Motagua Fault Systems of Polochic, Motagua, Cabañas, and Jocotán. All these are E-W and ENE-WSW strike-slip faults. Some of them are still seismically active. The MSZ also includes E-W uplift structures (Sierra de Chuacús, Sierra de Las Minas, and Montañas del Mico), pull-apart basins like the one responsible for the formation of the Lake Izabal, and N-S oriented grabens (Chiquimula, Guatemala, etc.). ]]>

Part 1 of 10 Introduction to the Ophiolitic Belts INTRODUCTION The aim of this book is to provide an overview of the ophiolitic processes associated with the Motagua Suture Zone in Guatemala and to show their mineral potential. It includes the final version of the Field Trip to Guatemala designed by the Author. In preparing this book I have compiled information from different sources, including several internet sources, combined with my personal experiences in the mapping of the area and help and cooperation of the geologists from the Guatemalan Ministry of Energy and Mines. The Caribbean Plate (Fig. 1) is the result of the Mesozoic-Present interaction of the Nazca, Cocos, North, and South American plates. The margins of these plates are represented by large deformed belts which resulted from several compressional episodes that started in the Cretaceous and were followed by tensional and strike-slip tectonics. The present-day north-western margin of the Caribbean Plate crops out in Guatemala along the Motagua Suture Zone (MSZ). This zone links the Meso-American trench with the Cayman Islands extensional system as shown in Fig. 2. The MSZ represents a sinistral shear-zone between the Maya Continental Block (MCB) to the north and the Chortis Continental Block (ChCB) to the south. The MSZ includes the Motagua Fault Systems of Polochic, Motagua, Cabañas, and Jocotán. All these are E-W and ENE-WSW strike-slip faults. Some of them are still seismically active. The MSZ also includes E-W uplift structures (Sierra de Chuacús, Sierra de Las Minas, and Montañas del Mico), pull-apart basins like the one responsible for the formation of the Lake Izabal, and N-S oriented grabens (Chiquimula, Guatemala, etc.). ]]>
Tue, 18 Jun 2019 21:29:28 GMT /slideshow/geological-and-geochemical-evolution-of-guatemalas-ophiolitic-belts-and-their-mineral-potential-part-1-of-10/150467373 RicardoValls2@slideshare.net(RicardoValls2) Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 1 of 10. RicardoValls2 Part 1 of 10 Introduction to the Ophiolitic Belts INTRODUCTION The aim of this book is to provide an overview of the ophiolitic processes associated with the Motagua Suture Zone in Guatemala and to show their mineral potential. It includes the final version of the Field Trip to Guatemala designed by the Author. In preparing this book I have compiled information from different sources, including several internet sources, combined with my personal experiences in the mapping of the area and help and cooperation of the geologists from the Guatemalan Ministry of Energy and Mines. The Caribbean Plate (Fig. 1) is the result of the Mesozoic-Present interaction of the Nazca, Cocos, North, and South American plates. The margins of these plates are represented by large deformed belts which resulted from several compressional episodes that started in the Cretaceous and were followed by tensional and strike-slip tectonics. The present-day north-western margin of the Caribbean Plate crops out in Guatemala along the Motagua Suture Zone (MSZ). This zone links the Meso-American trench with the Cayman Islands extensional system as shown in Fig. 2. The MSZ represents a sinistral shear-zone between the Maya Continental Block (MCB) to the north and the Chortis Continental Block (ChCB) to the south. The MSZ includes the Motagua Fault Systems of Polochic, Motagua, Cabañas, and Jocotán. All these are E-W and ENE-WSW strike-slip faults. Some of them are still seismically active. The MSZ also includes E-W uplift structures (Sierra de Chuacús, Sierra de Las Minas, and Montañas del Mico), pull-apart basins like the one responsible for the formation of the Lake Izabal, and N-S oriented grabens (Chiquimula, Guatemala, etc.). <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/section1-190618212928-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Part 1 of 10 Introduction to the Ophiolitic Belts INTRODUCTION The aim of this book is to provide an overview of the ophiolitic processes associated with the Motagua Suture Zone in Guatemala and to show their mineral potential. It includes the final version of the Field Trip to Guatemala designed by the Author. In preparing this book I have compiled information from different sources, including several internet sources, combined with my personal experiences in the mapping of the area and help and cooperation of the geologists from the Guatemalan Ministry of Energy and Mines. The Caribbean Plate (Fig. 1) is the result of the Mesozoic-Present interaction of the Nazca, Cocos, North, and South American plates. The margins of these plates are represented by large deformed belts which resulted from several compressional episodes that started in the Cretaceous and were followed by tensional and strike-slip tectonics. The present-day north-western margin of the Caribbean Plate crops out in Guatemala along the Motagua Suture Zone (MSZ). This zone links the Meso-American trench with the Cayman Islands extensional system as shown in Fig. 2. The MSZ represents a sinistral shear-zone between the Maya Continental Block (MCB) to the north and the Chortis Continental Block (ChCB) to the south. The MSZ includes the Motagua Fault Systems of Polochic, Motagua, Cabañas, and Jocotán. All these are E-W and ENE-WSW strike-slip faults. Some of them are still seismically active. The MSZ also includes E-W uplift structures (Sierra de Chuacús, Sierra de Las Minas, and Montañas del Mico), pull-apart basins like the one responsible for the formation of the Lake Izabal, and N-S oriented grabens (Chiquimula, Guatemala, etc.).
Geological and Geochemical Evolution of Guatemala's Ophiolitic Belts and their Mineral Potential. Part 1 of 10. from Ricardo Valls P. Geo., M. Sc.
]]>
88 1 https://cdn.slidesharecdn.com/ss_thumbnails/section1-190618212928-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Ricardo Valls explains how to find your next deposit with embedded video /slideshow/ricardo-valls-explains-how-to-find-your-next-deposit-with-embedded-video/94102231 ricardovalls-howtofindyournextdepositwithvideo-180417142501
Having a geochemical or geophysical anomaly is not enough. You NEED to have a space for your deposit. This will help you concentrate your exploration efforts on places where there is the possibility of a deposit. This method will help you concentrate your exploration on the most prospective targets, thus increasing your productivity.]]>

Having a geochemical or geophysical anomaly is not enough. You NEED to have a space for your deposit. This will help you concentrate your exploration efforts on places where there is the possibility of a deposit. This method will help you concentrate your exploration on the most prospective targets, thus increasing your productivity.]]>
Tue, 17 Apr 2018 14:25:01 GMT /slideshow/ricardo-valls-explains-how-to-find-your-next-deposit-with-embedded-video/94102231 RicardoValls2@slideshare.net(RicardoValls2) Ricardo Valls explains how to find your next deposit with embedded video RicardoValls2 Having a geochemical or geophysical anomaly is not enough. You NEED to have a space for your deposit. This will help you concentrate your exploration efforts on places where there is the possibility of a deposit. This method will help you concentrate your exploration on the most prospective targets, thus increasing your productivity. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/ricardovalls-howtofindyournextdepositwithvideo-180417142501-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Having a geochemical or geophysical anomaly is not enough. You NEED to have a space for your deposit. This will help you concentrate your exploration efforts on places where there is the possibility of a deposit. This method will help you concentrate your exploration on the most prospective targets, thus increasing your productivity.
Ricardo Valls explains how to find your next deposit with embedded video from Ricardo Valls P. Geo., M. Sc.
]]>
118 3 https://cdn.slidesharecdn.com/ss_thumbnails/ricardovalls-howtofindyournextdepositwithvideo-180417142501-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
Ricardo Valls explains How to effectively find your next deposit /slideshow/ricardo-valls-explains-how-to-effectively-find-your-next-deposit/94096967 ricardovalls-howtofindyournextdeposit-180417133104
Having a geochemical or geophysical anomaly is not enough. You NEED to have a space for your deposit. This will help you concentrate your exploration efforts on places where there is the possibility of a deposit. This method will help you concentrate your exploration on the most prospective targets, thus increasing your productivity.]]>

Having a geochemical or geophysical anomaly is not enough. You NEED to have a space for your deposit. This will help you concentrate your exploration efforts on places where there is the possibility of a deposit. This method will help you concentrate your exploration on the most prospective targets, thus increasing your productivity.]]>
Tue, 17 Apr 2018 13:31:04 GMT /slideshow/ricardo-valls-explains-how-to-effectively-find-your-next-deposit/94096967 RicardoValls2@slideshare.net(RicardoValls2) Ricardo Valls explains How to effectively find your next deposit RicardoValls2 Having a geochemical or geophysical anomaly is not enough. You NEED to have a space for your deposit. This will help you concentrate your exploration efforts on places where there is the possibility of a deposit. This method will help you concentrate your exploration on the most prospective targets, thus increasing your productivity. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/ricardovalls-howtofindyournextdeposit-180417133104-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Having a geochemical or geophysical anomaly is not enough. You NEED to have a space for your deposit. This will help you concentrate your exploration efforts on places where there is the possibility of a deposit. This method will help you concentrate your exploration on the most prospective targets, thus increasing your productivity.
Ricardo Valls explains How to effectively find your next deposit from Ricardo Valls P. Geo., M. Sc.
]]>
127 1 https://cdn.slidesharecdn.com/ss_thumbnails/ricardovalls-howtofindyournextdeposit-180417133104-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0
https://public.slidesharecdn.com/v2/images/profile-picture.png https://cdn.slidesharecdn.com/ss_thumbnails/researchcollaboration-200224161827-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/research-collaboration-229032302/229032302 Research collaboration https://cdn.slidesharecdn.com/ss_thumbnails/library-connect-webinar-february-2020-slides560401-200219140904-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/library-connectwebinarfebruary2020slides-560401/228634813 Library connect-webina... https://cdn.slidesharecdn.com/ss_thumbnails/qaandqc-200125215419-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/quality-assurance-quality-control-for-the-field-work/224402030 Quality Assurance &amp; Qu...