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A paleozoic pangaea.

A J Boucot, J Gray

    Science (New York, N.Y.)
    |November 11, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Paleozoic paleogeography reconstructions require consistency with all data. Southern Hemisphere pangaeic reconstructions align lithofacies and biogeographic data, resolving inconsistencies found in Devonian paleomagnetic models.

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    Area of Science:

    • Paleogeography
    • Paleomagnetism
    • Paleoceanography

    Background:

    • Paleozoic paleogeographies are crucial for understanding Earth's history.
    • Existing Devonian paleogeographic models derived from paleomagnetism exhibit significant inconsistencies.
    • Reconciling paleogeographic reconstructions with diverse geological data remains a challenge.

    Purpose of the Study:

    • To evaluate the consistency of Devonian paleogeographies with multiple geological datasets.
    • To investigate the plausibility of a Southern Hemisphere pangaeic reconstruction.

    Main Methods:

    • Comparative analysis of three Devonian paleogeographies based on remanent magnetism data.
    • Integration of ocean surface current patterns, lithofacies, and biogeographic data.

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  • Testing a pangaeic reconstruction positioned in the Southern Hemisphere.

    • Main Results:

    • Devonian paleogeographies derived from paleomagnetism are inconsistent with ocean currents, lithofacies, and biogeographic data.
    • A pangaeic reconstruction in the Southern Hemisphere successfully reconciles lithofacies and biogeographic data.
    • This suggests a more plausible paleogeographic arrangement for the Paleozoic.

    Conclusions:

    • Devonian paleomagnetic data alone is insufficient for accurate paleogeographic reconstructions.
    • A Southern Hemisphere pangaeic model offers a more coherent framework for Paleozoic paleogeography.
    • Future paleogeographic studies should prioritize multi-proxy data integration.