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Polar wandering on Mars?

B C Murray, M C Malin

    Science (New York, N.Y.)
    |March 9, 1973
    PubMed
    Summary
    This summary is machine-generated.

    Mars

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    Area of Science:

    • Planetary Science
    • Geophysics

    Background:

    • Unique quasi-circular structures in Martian polar regions may indicate past polar wandering.
    • Large equatorial volcanic features suggest deep convection may be active on Mars.

    Purpose of the Study:

    • To investigate the possibility of polar wandering on Mars.
    • To explore the link between deep convection, volcanic features, and polar wandering.

    Main Methods:

    • Analysis of Martian polar geological structures.
    • Correlation of gravity field data with equatorial volcanic features.

    Main Results:

    • Quasi-circular polar structures suggest a record of polar wandering over the past 100 million years.
    • Nonhydrostatic gravity field components correlate with equatorial volcanic features, supporting deep convection.

    Conclusions:

    • Polar wandering on Mars is plausible, potentially evidenced by polar structures and gravity anomalies.
    • Deep convection is a likely mechanism driving both Martian volcanism and polar wander.