The Geologic Oddity in Arizona; Flagstaff's Recent Glaciers
Автор: GeologyHub
Загружено: 2023-04-27
Просмотров: 41702
It was not so long ago that Arizona contained several hundred foot thick and more than a mile long glaciers. These glaciers existed as little as 10,000 years ago north of the city of Flagstaff within the San Francisco Mountain complex. They grew and contracted 4 times, before finally disappearing altogether. Today, you can find remnants of glacial till and moraines on the east-northeast section of the San Francisco Mountain.
Thumbnail Photo Credit: Photo Credit: Loewen, M. W., Alaska Volcano Observatory / U.S. Geological Survey, https://avo.alaska.edu/images/image.p.... This image was then overlaid with text in addition to GeologyHub made graphics (the image border with the GeologyHub logo).
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Sources/Citations:
[1] U.S. Geological Survey
[2] Adamo, N., AlAnsari, N. and Sissakian, V. (2021) Review of Climate Change Impacts on Human Environment: Past, Present and Future Projections. Engineering, 13, 605-630, CC BY 4.0
[3] Panchuk, K. (2019) Glaciation over Earth’s History. Section 4, Chapter 17 of the DOI: 10.4236/eng.2021.1311044 626 Engineering Book (Physical Geology). The University of Saskatchewan, Saskatoon.
[4] NOAA
[5] The Google Earth KMZ file used in this video used to show the Geologic Map of Arizona was downloaded from: U.S. Geological Survey, Arizona geologic map data, at https://mrdata.usgs.gov/geology/state...
[6] Alaska Volcano Observatory
0:00 Glaciers in Arizona
1:16 Arizona's Volcanoes
3:48 Glacial Advance Timing
4:18 Conclusion
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