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    Depth of Origin of the Peak (Inner) Ring in Lunar Impact Basins

    256346.pdf (383.0Kb)
    Access Status
    Open access
    Authors
    Miljković, Katarina
    Lemelin, M.
    Lucey, P.
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Miljkovic, K. and Lemelin, M. and Lucey, P. 2017. Depth of Origin of the Peak (Inner) Ring in Lunar Impact Basins. Geophysical Research Letters. 44 (10): pp. 140-146.
    Source Title
    Geophysical Research Letters
    DOI
    10.1002/2017GL075207
    ISSN
    0094-8276
    School
    Department of Applied Geology
    Remarks

    Copyright © 2017 The American Geophysical Union

    URI
    http://hdl.handle.net/20.500.11937/57875
    Collection
    • Curtin Research Publications
    Abstract

    Numerical modeling of the peak-ring basin formation showed that the peak-ring forms from the material that is part of the central uplift outwardly thrust over the inwardly collapsing transient crater rim. Simulations of the lunar basin formation showed that the peak or inner ring in peak ring or multiring basins, respectively, is composed of the overturned crust and deep-seated material, possibly from the upper mantle. Numerical impact simulations were used to trace the depth of origin of material exposed within the peak (or inner) ring. We estimate the scaling trends between basin size and the depth of origin of material exposed within the ring. We also report on the likely crust, mantle, and projectile abundances exposed within the ring. Quantifying the excavation depths during the formation of the peak or inner ring provides a step toward understanding the lunar crust and mantle stratigraphy.

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