Geology and geochemistry of the colt mesa copper deposit, Circle Cliffs Area, Utah

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Publication Type thesis
School or College College of Mines & Earth Sciences
Department Geology & Geophysics
Author Collings, Gay Madsen
Title Geology and geochemistry of the colt mesa copper deposit, Circle Cliffs Area, Utah
Date 1975-08
Description The Colt Mesa copper deposit, Circle Cliffs area, Utah, is located at the contact of a paleochannel deposit of the Shinarump Member of the Chinle Formation and the underlying Moenkopi Formation. The ore body is tabular in form and is composed of chalcopyrite, bornite, digenite covellite, and chalcocite. Minor amounts of zinc, lead, cobalt, nickel, molybdenum, uranium, vanadium and silver are associated with copper mineralization. The Colt Mesa deposit is genetically similar to uranium deposits in the Circle Cliffs area. The ore fluid was a low temperature, dilute aqueous medium such as groundwater. All of the elements enriched in the ore zone are soluble at low concentrations in an oxidizing, neutral to slightly acid environment. Precipitation of ore elements as sulfides was caused by a decrease in the Eh of the ore solution. The greater range of solu­bility of uranium indicates that it can remain in solution after the precipitation of copper.
Type Text
Publisher University of Utah
Subject Ore deposits; Utah; Circle cliffs; Geology; Geochemistry; Colt Mesa Mine; Thesis and dissertation georeferencing project
Dissertation Institution University of Utah
Dissertation Name MS
Language eng
Relation is Version of Digital reproduction of "Geology and geochemistry of the colt mesa copper deposit, Circle Cliffs Area," Utah J. Willard Marriott Library Special Collections, QE3.5 1975 .C58.
Rights Management In the public domain use of this file is allowed in accordance with the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License,
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Source Original: University of Utah J. Willard Marriott Library Special Collections
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