Confirmation of the astronomical calibration of the magnetic polarity timescale from sea-floor spreading rates

Details Confirmation of the astronomical calibration of the magnetic polarity timescale from sea-floor spreading rates Confirmation of the astronomical calibration of the magnetic polarity timescale from sea-floor spreading rates

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993natur.364..788w&link_type=abstract

Nature (ISSN 0028-0836), vol. 364, no. 6440, p. 788-790.

Astronomy and Astrophysics

Astronomy

31

Geomagnetism, Instrument Compensation, Magnetic Anomalies, Paleomagnetism, Polarity, Radioactive Age Determination, Sea Floor Spreading, Argon Isotopes, Earth Orbits, Marine Environments, Oxygen Isotopes

Scientific paper

Sea-floor spreading rates determined from high-precision plate-rotation solutions for five plate pairs are used here to test the astronomically calibrated timescale for the earth's magnetic field reversals over the past 5.32 Myr. The results suggest that errors in the astronomical calibration are no greater than 0.02 Myr and also show that spreading rate can remain constant for several million yrs, even for fast-moving plates.

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