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A revised estimate of Pacific-North America motion and implications for Western North America plate boundary zone tectonicsMarine magnetic profiles from the Gulf of Californa are studied in order to revise the estimate of Pacific-North America motion. It is found that since 3 Ma spreading has averaged 48 mm/yr, consistent with a new global plate motion model derived without any data. The present data suggest that strike-slip motion on faults west of the San Andreas is less than previously thought, reducing the San Andreas discrepancy with geodetic, seismological, and other geologic observations.
Document ID
19880025657
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Demets, Charles
(Northwestern Univ. Evanston, IL, United States)
Gordon, Richard G.
(Northwestern Univ. Evanston, IL, United States)
Stein, Seth
(Northwestern Univ. Evanston, IL, United States)
Argus, Donald F.
(Northwestern University Evanston, IL, United States)
Date Acquired
August 13, 2013
Publication Date
September 1, 1987
Publication Information
Publication: Geophysical Research Letters
Volume: 14
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
88A12884
Funding Number(s)
CONTRACT_GRANT: NAG5-885
CONTRACT_GRANT: NSF EAR-84-17323
CONTRACT_GRANT: NSF EAR-86-18038
Distribution Limits
Public
Copyright
Other

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