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  1. 1

    Near infrared and XRD quantification of porphyry copper alteration at Cerro Colorado and Spence, Chile / by Cotton, Worth Bagley

    Published 2003
    Thesis Book
  2. 2

    Geology and ore deposits of the Maqui vein, Alhué mining district, coast range of central Chile / by Cotton, Worth Bagley

    Published 1998
    Thesis Book
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