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Tiger Creek FieldAssignmentMatt SavoieProfessor LawlerGel 103, Spring 2013June 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 Creeknear the reservoir.● The photos and rock samples includ...
Site Location● Near Pioneer,California● Take Tiger Creek Rdfrom Hwy 88,Eventually turning rightonto Salt Springs Rd.● Coor...
Tiger Creek TerrainView of terrain, elevation, and shrubbery that hasbeen carved from the river flow. (Google Earth)
Quick Geological History &Overview● Sierra Nevada Range is a 400 mile long tiltedfault block.● 250 million years ago the p...
Geology of Tiger Creek● Deep granite canyon, expert-only river rapids belowHighway 26● Large boulders in the river; massiv...
Rock Sample: ShaleI I believe this to be thesedimentary rock shale.Formed by particles of clayand mud compressed bythe pre...
Rock Sample: GraniteI believe this to be a sampleof the Igneous rock Granite.Formed when a magmarapidly cools and crystall...
Plant Sample: HimalayanBlackberry● I believe this to be a HimalayanBlackberry bush (RubusArmeniacus)● This bush is of the ...
Plant Sample: White Fir● I believe this to be a White Fir(Abies Concolor)● This tree is from the familyPinaceae, under the...
Plant Sample: White Alder● I believe this to be WhiteAlder (Alnus Rhombifolia)● This tree is from thefamily Betulaceae, un...
Additional Photos
References● 38.447973,-120.493616. (n.d.). In Google Maps. Retrieved June 23, 2013,from https://maps.google.com/maps?hl=en...
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Tiger creek field assignment 3

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Tiger creek field assignment 3

  1. 1. Tiger Creek FieldAssignmentMatt SavoieProfessor LawlerGel 103, Spring 2013June 20, 2013
  2. 2. Content● Background & Method● Brief Geological History● River Geology● Rock Examples● Plant Examples● Geological Features
  3. 3. Background & Method● In late June, i visited an area of Tiger Creeknear the reservoir.● The photos and rock samples included inthis report are from this field trip● 3D map images were prepared using GoogleEarth● Identification of rocks done using: Geologyof the Sierra Nevada, by Mary Hill (2006)● Identification of plants done using: The LawsField Guide To The Sierra Nevada, by JohnMuir Laws (2007)
  4. 4. Site Location● Near Pioneer,California● Take Tiger Creek Rdfrom Hwy 88,Eventually turning rightonto Salt Springs Rd.● Coordinates38.447973,-120.493616
  5. 5. Tiger Creek TerrainView of terrain, elevation, and shrubbery that hasbeen carved from the river flow. (Google Earth)
  6. 6. Quick Geological History &Overview● Sierra Nevada Range is a 400 mile long tiltedfault block.● 250 million years ago the pacific plate began tofall below the north american plate causingsubduction.● Plutonic rock began to rise from the collisoncausing the mountain to begin to rise 80 millionyears ago.(Resendes, M. A.)
  7. 7. Geology of Tiger Creek● Deep granite canyon, expert-only river rapids belowHighway 26● Large boulders in the river; massive granite domes nearSalt Springs Powerhouse● Steep, granitic river gorge downstream; the Devil’sNose● Healthy trout fishery● Important mid-elevation wildlife and bird habitat(Tiger Creek to Elektra)
  8. 8. Rock Sample: ShaleI I believe this to be thesedimentary rock shale.Formed by particles of clayand mud compressed bythe pressure and weight ofwhat is above.(Peck, D)(Hill 2006)
  9. 9. Rock Sample: GraniteI believe this to be a sampleof the Igneous rock Granite.Formed when a magmarapidly cools and crystallizesdeep underground. Thecourse crystals are pressedtogether and form this rock.(Peck,D)(Hill 2006)
  10. 10. Plant Sample: HimalayanBlackberry● I believe this to be a HimalayanBlackberry bush (RubusArmeniacus)● This bush is of the familyRosacea, under the orderRosales.● Descended from earlyangiosperms.● introduced for cultivation, butthen spread due to birds andother animals(Laws 2007)(Rubus Armeniacus)
  11. 11. Plant Sample: White Fir● I believe this to be a White Fir(Abies Concolor)● This tree is from the familyPinaceae, under the order Pinales● It is a cone bearing tree most likelyevolving from early non-floweringvascular plants.● It is native to the Great BasinMountains, and generally lives ataltitudes of 1700-3400 m(laws 2007)(Abies Concolor)
  12. 12. Plant Sample: White Alder● I believe this to be WhiteAlder (Alnus Rhombifolia)● This tree is from thefamily Betulaceae, under theorder Fagales.● This has evolved fromearly vascular, flower-bearingplants.● This tree is native to thesouthern sierra nevadas,100-2,400 m(laws 2007)(Alnus Rhombifolia)
  13. 13. Additional Photos
  14. 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=999● Alnus Rhombifolia. (n.d.). In Ask.com. Retrieved June 23, 2013, from http://www.ask.com/wiki/Alnus_rhombifolia?o=2801&qsrc=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. RetrievedJune 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=999● Tiger Creek to Elektra. (n.d.). In Foothill Conservancy. Retrieved June 23,2013, from http://www.foothillconservancy.org/pages/ws_tiger.cgi
  15. 15. The End

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