PowerPoint "干辰姻厩艶糸" on kasutatav nii III kooliastme geograafias kui ka II kooliastme loodus探petuses. Seda saab edukalt kasutada nii tavakoolis kui ka lihtsustatud 探ppekavaga 探pilastele.
Karst topography is a type of landscape formed by the dissolution of limestone and dolostone by groundwater. It requires water, limestone that is at least 80% calcium carbonate, and a network of joints and fractures for water to flow through. Features include sinkholes, caves, and disappearing streams. Sinkholes form where water drains through joints in the limestone, collapsing the surface. Caves form near the water table and contain formations like stalactites, stalagmites, and columns.
Un karst se produce cuando el agua de lluvia y r鱈os disuelve rocas solubles como la caliza y el yeso, creando cuevas y otras formas de relieve. La reacci坦n qu鱈mica que causa la disoluci坦n se llama carbonataci坦n. Esto ocurre cuando el agua con di坦xido de carbono disuelto entra en contacto con la calcita o feldespatos en las rocas. Esto da como resultado paisajes k叩rsticos con diferentes tipos de cavidades superficiales como dolinas y simas, y cavidades subterr叩neas como cuevas
Karst topography is a type of landscape formed by the dissolution of limestone and dolostone by groundwater. It requires water, limestone that is at least 80% calcium carbonate, and a network of joints and fractures for water to flow through. Features include sinkholes, caves, and disappearing streams. Sinkholes form where water drains through joints in the limestone, collapsing the surface. Caves form near the water table and contain formations like stalactites, stalagmites, and columns.
Un karst se produce cuando el agua de lluvia y r鱈os disuelve rocas solubles como la caliza y el yeso, creando cuevas y otras formas de relieve. La reacci坦n qu鱈mica que causa la disoluci坦n se llama carbonataci坦n. Esto ocurre cuando el agua con di坦xido de carbono disuelto entra en contacto con la calcita o feldespatos en las rocas. Esto da como resultado paisajes k叩rsticos con diferentes tipos de cavidades superficiales como dolinas y simas, y cavidades subterr叩neas como cuevas
Karst topography forms in areas with soluble rock like limestone and dolomite. Groundwater dissolves the rock through chemical processes, forming distinctive landforms. Key features include sinkholes, caves, underground streams, and karst plains. Karst regions exist worldwide, including parts of Europe, Asia, and North America, requiring soluble bedrock and adequate rainfall for dissolution to occur.
The document summarizes key limestone landforms and features formed through chemical weathering processes. Surface features include limestone pavements, swallow holes, and clints and grykes, while subsurface features include stalactites, stalagmites, caverns, and gorges. These landforms result from water dissolving the calcium carbonate in permeable limestone through inputs like rainwater, leaving behind distinctive karst topography.
The document discusses different underground limestone features including stalagmites, stalactites, and caverns. Stalagmites form from water deposits on the ground, stalactites form from water deposits on cave ceilings. Caverns are created through chemical weathering which erodes limestone over time. Malham Cove has different rock layers and features that allow for erosion and the formation of caves and underground structures through chemical and water processes.
Limestone Features And Scenery Of The Yorkshire Dalescheergalsal
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The document describes several limestone features found in the Yorkshire Dales National Park in the UK. It explains the limestone pavement at Malham formed from weathering along joints and bedding planes. It also describes how swallow holes allow water to disappear underground, later resurging where impermeable rock is encountered. Dry valleys were left behind by melting glaciers, and Malham Cove and Gordale Scar are limestone ravines formed by water erosion. The land is used residentially, for quarrying, farming, and tourism which brings in 贈50 million annually.
Este documento describe diferentes procesos geomorfol坦gicos como torrentes, modelado costero, modelado k叩rstico y modelado gran鱈tico. Explica formas como acantilados, playas, dolinas y caos de bolos que se producen debido a la erosi坦n, sedimentaci坦n y alteraci坦n de rocas en diferentes ambientes.
The Yorkshire Dales National Park is the third largest national park in England and Wales known for its outstanding scenery and diverse wildlife. It contains limestone pavements, swallow holes which are sinkholes, and dry valleys formed during the ice age when surface water drained underground. Popular attractions include Malham Cove, a curved limestone cliff, and Goredale Scar, which exposes bare rock faces due to erosion. Land use in the park includes farming, quarrying, tourism focused on walking and cycling, and caving.
Limestone is a porous rock that water can dissolve through solution weathering. The chemical reaction of calcium carbonate + rainwater + carbon dioxide forms calcium bicarbonate and weak carbonic acid, which dissolves the limestone over time. This process enlarges caverns within the rock until the cavern roof collapses, forming a gorge with a stream at the bottom and scree made of broken rock fragments.
Modelling the Distribution of Karst Topography, Nova Scotia, CanadaCOGS Presentations
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The document describes a project to model the distribution of karst topography in Nova Scotia, Canada. It acknowledges the assistance of various groups in providing data and expertise. It then discusses what karst topography is, why it is important to study, and presents photos of examples in Nova Scotia. The document outlines the study area, objectives, approach, datasets used, and the data preparation process. It describes the variables chosen for the model and the automated model that was created. The document discusses the final predictive karst distribution output, validation of the model, and presents results for various regions of Nova Scotia. It concludes with recommendations to improve the model and further understanding of karst distribution.
Weathering, Erosion, Deposition, and Karst Topographyrebelbrindley
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Weathering breaks down rock through mechanical and chemical processes. Mechanical weathering breaks rock into smaller pieces without changing its composition through frost action, plant growth, and abrasion. Chemical weathering alters the rock composition through hydrolysis, oxidation, and carbonation. Karst topography forms in limestone areas through carbonation, creating features like caverns, sinkholes, and disappearing rivers. Erosion then transports weathered material via gravity, ice, water, and wind, with deposition occurring when this material can no longer be moved.
Matthew Cahalan Georgia Water Resources Conference PresentationMatthew Cahalan
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This is the poster I presented at the 2015 Georgia Water Resources Conference. It focuses on my M.S. thesis research that seeks to answer this fundamental question: "why do sinkholes form where they do?". This question was answered using an improved remote sensing sinkhole mapping procedure, integration of many datasets (i.e., hydrologic, anthropogenic, geologic, geomorphologic, and hydrogeologic), and spatial statistics (i.e., ordinary least squares and geographically weighted regression). This poster / my presentation was voted as one of the top 3 posters at the conference.
This document contains a list of 15 Flickr image URLs. The URLs reference photos related to transportation, infrastructure, and cities. Subjects in the photos include bridges, roads, trains, and historical city scenes.
Expert Report on Geologic Hazards in the Karst Regions of Virginia and West V...Marcellus Drilling News
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This expert report analyzes the significant geologic hazards posed by constructing the Mountain Valley Pipeline through karst regions of Virginia and West Virginia, including:
- Groundwater contamination from construction and potential pipeline ruptures in karst terrain which allows rapid transmission through aquifers.
- Increased potential for sinkhole collapse from altering hydrologic flows and intersecting underground karst features during construction.
- Slope instability on the steep slopes the pipeline would traverse, exacerbated by weak, unstable soils and the Giles County seismic zone.
- Disruption of important allogenic groundwater recharge areas, caves, ecosystems, and water supplies for local communities from the extensive construction corridor.
The report concludes
The document discusses the three main types of rocks - igneous, sedimentary, and metamorphic. It describes the rock cycle by which rocks are formed from magma and transformed through weathering, sedimentation, and metamorphism. Key examples of rock types are discussed such as granite, limestone, chalk, slate, and marble.
2. Karsti m探iste (karst what it is?)
Karst on karstumise tagaj辰rjel tekkinud pinnavorm v探i nende
kogum. Karst on levinud kohtades, kus maap探ues esineb
kergesti lahustuvaid kivimeid, lubjakive, dolomiiti, soola, kipsi
v探i marmorit, mida m探jutab maapinda sattuv vesi.
Karstumine( karstification) on kivimite lahustumine liikuva
p探hjavee murendava toime t探ttu.
Nimi karst on tulnud Sloveenias
asuva Karsti platoo j辰rgi.
https://www.youtube.com/watch?
v=DBUZLNIlAmg (karst-what it is?)
http://miksike.ee/documents/main/referaadid/karst_liina.htm
5. Karsti levik maailmas (karst in the world)
Maailmas leidub karstialasid v辰ga paljudes kohtades.
Maailma suurim karstikoobas asub P探hja-Ameerikas Kentucky
osariigis. Sealsel Mammutikoopal on viis korrust ja ligi 288
kilomeetrit k辰ike. Suurim saal on 5 kilomeetrit pikk, 90 meetrit lai
ja 40 meetrit k探rge.
http://www.reisiguru.ee/lugu/185
https://www.youtube.com/watch?v=a9y0qFNpJZ
M#t=80 Mammot cave
6. Karstialad Eestis (karst in Estonia)
Kostivere
Tuhala
Kuimetsa
http://www.geoeducation.info/geoturism/karst/karstinahtused.jpg
