Further paleomagnetic results for the San Juan volcanic field of southern Colorado

M. E. Beck; S.D. Sheriff; J. F. Diehl; E.A. Hailwood; P. W. Lipman

doi:10.1016/0012-821x(77)90153-4

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Further paleomagnetic results for the San Juan volcanic field of southern Colorado

M. E. Beck·S.D. Sheriff·J. F. Diehl·E.A. Hailwood·P. W. Lipman

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Abstract

Combining paleomagnetic data for 17 new sites from the northwest portion of the (Oligocene) San Juan volcanic field of southern Colorado with data for 29 sites previously published yields a paleomagnetic pole at 85°N, 114°E (with a 95% confidence circle of 7.5° radius). A further combination of the San Juan data with the results of other studies on rocks of Oligocene age from tectonically stable parts of North America gives a mid-Tertiary reference pole located at 81°N, 132.5°E, with a confidence circle of approximately 4°. Mid-Tertiary paleomagnetic poles for the western edge of the continent diverge markedly from this reference pole.

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Earth and Planetary Science Letters Article

Source-reported bounding extent: 36.899665690749316° to 39.11541129154787° latitude; -109.09955711817746° to -105.3971645400524° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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M. E. Beck, S.D. Sheriff, J. F. Diehl, E.A. Hailwood, P. W. Lipman. 1977. Further paleomagnetic results for the San Juan volcanic field of southern Colorado. https://doi.org/10.1016/0012-821x(77)90153-4

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