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Age of the Peach Springs Tuff, southeastern California and western Arizona

Journal of Geophysical Research

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Abstract

Sanidine separates from pumice of the early Miocene Peach Springs Tuff are concordantly dated at 18.5??0.2 Ma by two isotopic techniques. The Peach Springs Tuff is the only known unit that can be correlated between isolated outcrops of Miocene strata from the central Mojave Desert of southeastern California to the western Colorado Plateau in Arizona, across five structural provinces, a distance of 350 km. Thus, the age of the Peach Springs Tuff is important to structural and paleogeographic reconstructions of a large region. -from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Age of the Peach Springs Tuff, southeastern California and western Arizona
Series title:
Journal of Geophysical Research
Volume
95
Issue:
B1
Year Published:
1990
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Geophysical Research
First page:
571
Last page:
580
Number of Pages:
10