A revised estimate of Pacific-North America motion and implications for Western North America plate boundary zone tectonics

Details A revised estimate of Pacific-North America motion and implications for Western North America plate boundary zone tectonics A revised estimate of Pacific-North America motion and implications for Western North America plate boundary zone tectonics

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987georl..14..911d&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 14, Sept. 1987, p. 911-914.

Mathematics

Logic

76

Earth Movements, Magnetic Anomalies, North America, Pacific Ocean, Plates (Tectonics), Earth Crust, Geodetic Surveys, Geological Faults, Seismology

Scientific paper

Marine 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.

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