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Tiger creek field assignment 3

Matt Savoie
Matt Savoie

Matt Savoie visited Tiger Creek near Pioneer, California to study the local geology and plant life. He observed rock formations of shale and granite left from the uplift of the Sierra Nevada mountain range over 250 million years ago. Savoie also collected samples of plants including Himalayan blackberry, white fir, and white alder to identify. He documented additional geological features and included photos to support his field assignment report.

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Tiger Creek Field Assignment Matt Savoie Professor Lawler Gel 103, Spring 2013 June 20, 2013
Content Background & Method Brief Geological History River Geology Rock Examples Plant Examples Geological Features
Background & Method In late June, i visited an area of Tiger Creek near the reservoir. The photos and rock samples included in this report are from this field trip 3D map images were prepared using Google Earth Identification of rocks done using: Geology of the Sierra Nevada, by Mary Hill (2006) Identification of plants done using: The Laws Field Guide To The Sierra Nevada, by John Muir Laws (2007)
Site Location Near Pioneer, California Take Tiger Creek Rd from Hwy 88, Eventually turning right onto Salt Springs Rd. Coordinates 38.447973, -120.493616
Tiger Creek Terrain View of terrain, elevation, and shrubbery that has been carved from the river flow. (Google Earth)
Quick Geological History & Overview Sierra Nevada Range is a 400 mile long tilted fault block. 250 million years ago the pacific plate began to fall below the north american plate causing subduction. Plutonic rock began to rise from the collison causing the mountain to begin to rise 80 million years ago. (Resendes, M. A.)
Geology of Tiger Creek Deep granite canyon, expert-only river rapids below Highway 26 Large boulders in the river; massive granite domes near Salt Springs Powerhouse Steep, granitic river gorge downstream; the Devils Nose Healthy trout fishery Important mid-elevation wildlife and bird habitat (Tiger Creek to Elektra)
Rock Sample: Shale I I believe this to be the sedimentary rock shale. Formed by particles of clay and mud compressed by the pressure and weight of what is above. (Peck, D)(Hill 2006)
Rock Sample: Granite I believe this to be a sample of the Igneous rock Granite. Formed when a magma rapidly cools and crystallizes deep underground. The course crystals are pressed together and form this rock. (Peck,D)(Hill 2006)
Plant Sample: Himalayan Blackberry I believe this to be a Himalayan Blackberry bush (Rubus Armeniacus) This bush is of the family Rosacea, under the order Rosales. Descended from early angiosperms. introduced for cultivation, but then spread due to birds and other animals (Laws 2007)(Rubus Armeniacus)
Plant Sample: White Fir I believe this to be a White Fir (Abies Concolor) This tree is from the family Pinaceae, under the order Pinales It is a cone bearing tree most likely evolving from early non-flowering vascular plants. It is native to the Great Basin Mountains, and generally lives at altitudes of 1700-3400 m (laws 2007) (Abies Concolor)
Plant Sample: White Alder I believe this to be White Alder (Alnus Rhombifolia) This tree is from the family Betulaceae, under the order Fagales. This has evolved from early vascular, flower-bearing plants. This tree is native to the southern sierra nevadas, 100-2,400 m (laws 2007)(Alnus Rhombifolia)
Additional Photos
References 38.447973,-120.493616. (n.d.). In Google Maps. Retrieved June 23, 2013, from https://maps.google.com/maps?hl=en&tab=wl Abies Concolor. (n.d.). In Ask.com. Retrieved June 23, 2013, from http: //www.ask.com/wiki/Abies_concolor?o=2801&qsrc=/slideshow/tiger-creek-field-assignment-3/23372327/999 Alnus Rhombifolia. (n.d.). In Ask.com. Retrieved June 23, 2013, from http: //www.ask.com/wiki/Alnus_rhombifolia?o=2801&qsrc=/slideshow/tiger-creek-field-assignment-3/23372327/999 Laws, J. M. (2007). The Laws Field Guide To The Sierra Nevada (Illustrated ed.). N.p.: Heyday. Peck, D. (n.d.). The Rock Identification Key. In Rock Hounds. Retrieved June 23, 2013, from http://www.rockhounds.com/rockshop/rockkey/ Resendes, M. A. (n.d.). Geology of the Sierra Nevada. In Sierra Historical. Retrieved June 23, 2013, from http://www.sierrahistorical.org/geology- sierra-nevadas Rubus Armeniacus. (n.d.). In Ask.com. Retrieved June 23, 2013, from http: //www.ask.com/wiki/Rubus_armeniacus?o=2801&qsrc=/slideshow/tiger-creek-field-assignment-3/23372327/999 Tiger Creek to Elektra. (n.d.). In Foothill Conservancy. Retrieved June 23, 2013, from http://www.foothillconservancy.org/pages/ws_tiger.cgi
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Tiger creek field assignment 3

  • 1. Tiger Creek Field Assignment Matt Savoie Professor Lawler Gel 103, Spring 2013 June 20, 2013
  • 2. Content Background & Method Brief Geological History River Geology Rock Examples Plant Examples Geological Features
  • 3. Background & Method In late June, i visited an area of Tiger Creek near the reservoir. The photos and rock samples included in this report are from this field trip 3D map images were prepared using Google Earth Identification of rocks done using: Geology of the Sierra Nevada, by Mary Hill (2006) Identification of plants done using: The Laws Field Guide To The Sierra Nevada, by John Muir Laws (2007)
  • 4. Site Location Near Pioneer, California Take Tiger Creek Rd from Hwy 88, Eventually turning right onto Salt Springs Rd. Coordinates 38.447973, -120.493616
  • 5. Tiger Creek Terrain View of terrain, elevation, and shrubbery that has been carved from the river flow. (Google Earth)
  • 6. Quick Geological History & Overview Sierra Nevada Range is a 400 mile long tilted fault block. 250 million years ago the pacific plate began to fall below the north american plate causing subduction. Plutonic rock began to rise from the collison causing the mountain to begin to rise 80 million years ago. (Resendes, M. A.)
  • 7. Geology of Tiger Creek Deep granite canyon, expert-only river rapids below Highway 26 Large boulders in the river; massive granite domes near Salt Springs Powerhouse Steep, granitic river gorge downstream; the Devils Nose Healthy trout fishery Important mid-elevation wildlife and bird habitat (Tiger Creek to Elektra)
  • 8. Rock Sample: Shale I I believe this to be the sedimentary rock shale. Formed by particles of clay and mud compressed by the pressure and weight of what is above. (Peck, D)(Hill 2006)
  • 9. Rock Sample: Granite I believe this to be a sample of the Igneous rock Granite. Formed when a magma rapidly cools and crystallizes deep underground. The course crystals are pressed together and form this rock. (Peck,D)(Hill 2006)
  • 10. Plant Sample: Himalayan Blackberry I believe this to be a Himalayan Blackberry bush (Rubus Armeniacus) This bush is of the family Rosacea, under the order Rosales. Descended from early angiosperms. introduced for cultivation, but then spread due to birds and other animals (Laws 2007)(Rubus Armeniacus)
  • 11. Plant Sample: White Fir I believe this to be a White Fir (Abies Concolor) This tree is from the family Pinaceae, under the order Pinales It is a cone bearing tree most likely evolving from early non-flowering vascular plants. It is native to the Great Basin Mountains, and generally lives at altitudes of 1700-3400 m (laws 2007) (Abies Concolor)
  • 12. Plant Sample: White Alder I believe this to be White Alder (Alnus Rhombifolia) This tree is from the family Betulaceae, under the order Fagales. This has evolved from early vascular, flower-bearing plants. This tree is native to the southern sierra nevadas, 100-2,400 m (laws 2007)(Alnus Rhombifolia)
  • 14. References 38.447973,-120.493616. (n.d.). In Google Maps. Retrieved June 23, 2013, from https://maps.google.com/maps?hl=en&tab=wl Abies Concolor. (n.d.). In Ask.com. Retrieved June 23, 2013, from http: //www.ask.com/wiki/Abies_concolor?o=2801&qsrc=/slideshow/tiger-creek-field-assignment-3/23372327/999 Alnus Rhombifolia. (n.d.). In Ask.com. Retrieved June 23, 2013, from http: //www.ask.com/wiki/Alnus_rhombifolia?o=2801&qsrc=/slideshow/tiger-creek-field-assignment-3/23372327/999 Laws, J. M. (2007). The Laws Field Guide To The Sierra Nevada (Illustrated ed.). N.p.: Heyday. Peck, D. (n.d.). The Rock Identification Key. In Rock Hounds. Retrieved June 23, 2013, from http://www.rockhounds.com/rockshop/rockkey/ Resendes, M. A. (n.d.). Geology of the Sierra Nevada. In Sierra Historical. Retrieved June 23, 2013, from http://www.sierrahistorical.org/geology- sierra-nevadas Rubus Armeniacus. (n.d.). In Ask.com. Retrieved June 23, 2013, from http: //www.ask.com/wiki/Rubus_armeniacus?o=2801&qsrc=/slideshow/tiger-creek-field-assignment-3/23372327/999 Tiger Creek to Elektra. (n.d.). In Foothill Conservancy. Retrieved June 23, 2013, from http://www.foothillconservancy.org/pages/ws_tiger.cgi