The country that I chose was Siskiyou County in northern California. The Klamath Mountains run through Siskiyou Country,
which provide a great amount of geologic structures. The mountains originated as volcanic arcs in
the Pacific Ocean, which indicated by the large amount of igneous rocks, such
as Granite (Hotz, 1971). However, this
indicates how they were formed but not really much more than that, and based on
the photos I was able to find, there isn’t many exposed strata to study. First, I would like to know if there is any
exposed strata in the country. This
could tell me how many layers were formed, which could tell me how old the land
is, as well as any deformed strata would indicate tectonic occurrences. Second, I would like to know about the fossil
assemblage found in the area. This would
tell me what types of organisms lived in the area and also how long the strata
has been formed. Third, I would like to
know the ratio of daughter atoms to parent atoms of one of the elements in the
rock formations, this could be a more accurate indicator of the age of the rock
formations.
Figure 1. Hotz, 1917
Figure 2. Wikipedia, n.d.
References:
Hotz, Preston E. (1971). Plutonic
Rocks of the Klamath Moutains, California and Oregon. Geological Survey.
Retrieved from https://pubs.usgs.gov/pp/0684b/report.pdf.
Wikipedia. (n.d.) Klamath
Mountains (ecoregion). Retrieved from https://en.wikipedia.org/wiki/Klamath_Mountains_(ecoregion)
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