Cenozoic Paleogeography of Arizona

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Author
Nations, D.
Wilt, J.C.
Hevly, R.H.
Issue Date
1985
Keywords
Arizona Geological Survey Contributed Reports
Cenozoic
Tertiary
Quaternary
Transition Zone
Colorado Plateau
Basin and Range Province
orogenesis
tectonics
geomorphology

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Citation
Nations, D., Wilt, J.C., and Hevly, R.H., 1985, Cenozoic paleogeography of Arizona: in Flores, R. M. and S. S. Kaplan, 1985. Cenozoic Paleogeography of the West-Central United States, Rocky Mountain Section, Soc. of Econ. Paleont. and Mineralogists, Rocky Mountain Paleogeography Symposium 3, p. 335-355
Description
The Cenozoic paleogeography of Arizona is interpreted from the sedimentary and volcanic strata throughout the state. Paleogeographic features such as mountains, plateaus, depositional basins, and drainage systems are interpreted within the constraints of known structural features of laramide age, and in some places, the depth of erosion into the pre-Cenozoic basement rocks. The absence of Paleocene sediments and the pronounced unconformity beneath Cenozoic rocks attests to an epeirogenic uplift of the region during the Laramide orogeny. This uplift was most pronounced in central and western Arizona. The resultant eros i on produced a beveled surface that cut deeply into Precambrian rocks of central Arizona and removed much of the Mesozoic cover of the future Colorado Plateau. Paleocene drainage systems transported the sediments of that age northward to the Uinta basin of Utah and eastward to the San Juan basin of New Mexico, along the downwarped Coconino and Baca-Eager basins that were formed as a synclinal trend adjacent to the Mogollon Highlands. The northward regional drainage was controlled by the Sevier foreland basin in Utah.
URI
http://hdl.handle.net/10150/629705
Additional Links
https://library.azgs.arizona.edu/
Language
en
Series/Report no.
CR-18-F
Rights
Society of Economic Paleontologists and Mineralogists, Rocky Mountain Section
Collection Information
Documents in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact azgs-info@email.arizona.edu.
North Bounding Coordinate
36.9969
South Bounding Coordinate
31.4414
West Bounding Coordinate
-114.869
East Bounding Coordinate
-109.024
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