Geology of the Yosemite area
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The exposed geology of the Yosemite area includes primarily granitic rocks with some older metamorphic rock. The first rocks were laid down in Precambrian times, when the area around Yosemite National Park was on the edge of a very young North American continent. The sediment that formed the area first settled in the waters of a shallow sea, and compressive forces from a subduction zone in the mid-Paleozoic fused the seabed rocks and sediments, appending them to the continent. Heat generated from the subduction created island arcs of volcanoes (not unlike Japan) that were also thrust into the area of the park. In time, the igneous and sedimentary rocks of the area were later heavily metamorphosed.
- See also: Wikipedia
- Related: Cathedral Peak Granodiorite
| Origin of Yosemite Valley, Chapter 4, Glaciers of ... Origin of Yosemite Valley, Chapter 4, Glaciers of California, by Bill Guyton www.ucpress.edu/books/pages/8119/8119.ch04.html - Web |
| Geology of the National Parks: Yosemite National P... Geology of the National Parks: Yosemite National Park's Geology geology.wr.usgs.gov/docs/usgsnps/yos/index.html - Web |
| The Geologic Story of Yosemite National Park by Dr... The Geologic Story of Yosemite National Park by Dr. N. King Huber (USGS, 1987) www.yosemite.ca.us/library/geologic_story_of_yosemite/ - Web |
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| The Geologic Story of Yosemite National Park (1987... The Geologic Story of Yosemite National Park (1987) by N. King Huber www.yosemite.ca.us/.../contents.html - Web |
