Paleomagnetic evidence for a Late Cretaceous deformation of the Great Valley Sequence, Sacramento Valley, California

Journal of Research of the U.S. Geological Survey
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Abstract

Paleomagnetic samples from five localities within the Great Valley sequence range in age from Late Jurassic to Late Cretaceous. All samples possess normal polarity, and alternating-field demagnetization experiments show that the remanence was acquired after the sequence was folded. A mean paleomagnetic pole position determined from 17 demagnetized samples is located at 72° N., 181° E., with the radius of the 95-percent circle of confidence equal to 5.4°. This pole position agrees very well with known Cretaceous poles from North America, a fact indicating that the deformation and remagnetization of the sequence must have occurred during the Late Cretaceous.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Paleomagnetic evidence for a Late Cretaceous deformation of the Great Valley Sequence, Sacramento Valley, California
Series title Journal of Research of the U.S. Geological Survey
Volume 6
Issue 3
Year Published 1978
Language English
Publisher U.S. Geological Survey
Contributing office(s) Geology, Minerals, Energy, and Geophysics Science Center
Description 8 p.
First page 383
Last page 390
Country United States
State California
Other Geospatial Sacramento Valley
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