Joshua Tree National Park
This paper discuses the geological history of Joshua Tree National Park, located within the Transverse Ranges Province near Riverside County, California.
# 99089 | 2,160 words | 6 sources | MLA | 2007 |
Published on Oct 29, 2007 in Geography (General) , Geology and Geophysics (General) , Tourism (General)
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This paper explains that the boundaries of Joshua Tree National Park are several mountain ranges including a quadrangle underlain by a basement terrane comprising Proterozoic metamorphic rocks, Mesozoic plutonic rocks, and Mesozoic or Cenozoic hypabyssal dikes. The author points out that, even in arid climates such as Joshua Tree National Park, water and wind are the key dynamic as far as erosion of rock is concerned; however, what is seen today in this park is a collection of relict features inherited from an earlier time of higher rainfall and lower temperatures. The paper stresses that the park, located just east of the San Andreas fault zone, is crisscrossed with hundreds of faults from ancient and recent earthquakes, which can be viewed and clearly understood by an alert visitor to the park.
From the Paper:"On June 28, 1992, the largest earthquake to have hit the contiguous United States in 40 years hit the Joshua Tree National Park area - a 7.3 Richter Scale shaker. It was called the Landers Earthquake Sequence; it was the result of a "right-lateral shear on five major faults," according to an article in the journal "Science". The earthquake was generated in an 80-kilometer-wide swath of seismically active faults along the southern part of the eastern California "shear zone" - of which Joshua Tree is a part."
Sample of Sources Used:
- King, H.D., & Chaffee, M.A. "Analytical Results and Sample Locality Maps for Rock, Stream- Sediment, and Soil Samples, Joshua Tree national Park, Riverside and San Bernardino Counties, California." U.S. Department of the Interior, U.S. Geological Survey. Open-File Report 99-367-A. (1999); Retrieved May 6, 2007.
- National Park Service. "Joshua Tree National Park: Geologic Formations (U.S. National Park Service)." Retrieved May 5, 2007, from http://www.nps.gov/jotr/naturescience/geologicformations.htm.
- Powell, Robert E. "Geologic Map and Digital Database of the Conejo Well 7.5 minute Quadrangle, Riverside County, Southern California." United States Geological Survey Open- File Report 01-031. Retrieved May 7, 2007, from http://pubs.usgs.gov/of/2001/of01-031/.
- Sieh, Kerry; Jones, Lucile; Hauksson, Egill; Hudnut, Kenneth; Eberhart-Phillips, Donna; Heaton, Thomas; Hough, Susan; Hutton, Kate; Kanamori, Hiroo; Lilje, Anne; Lindvall, Scott; McGill, Sally; Mori, James; Rubin, Charles; Spotila, James A; Stock, Joann; Thio, Hong Kie; Treiman, Jerome; Wernicke, Brian; & Zachariasen, Judith. "Near-Field Investigations of the Landers Earthquake Sequence, April to July 1992." Science 260.5105 (1993): 171-176.
- United States Geological Survey. "Geology in the Parks: What's Shaking in Joshua Tree?" Retrieved May 6, 2007, from http://geology.wr.usgs.gov/docs/usgsnps/jotr/index.html.
Cite this Descriptive Essay:
Joshua Tree National Park (2007, October 29) Retrieved June 17, 2021, from https://www.academon.com/descriptive-essay/joshua-tree-national-park-99089/
"Joshua Tree National Park" 29 October 2007. Web. 17 June. 2021. <https://www.academon.com/descriptive-essay/joshua-tree-national-park-99089/>