The geology of the Copper Basin ore deposits, Lander County, Nevada
Loading...
Authors
Tippett, Michael Charles
Issue Date
1967
Type
Thesis
Language
en_US
Keywords
Ore Deposits , Copper Basin , Supergene Enriched Copper Minerals , Arenites , Cambrian Harmony Formation , Hypogene Metallization , Eocene Quartz Monzonites , Host Rocks , Metamorphism , Fissures , Metasomatized Calcareous Shales , Harmony Formation , Oxidation Of Hypogene Chalcoprite-pyrrhotite-pyrite Tactite Zones , Commercial Supergene Copper Deposits , Secondary Ore Controls , Fracture Intersections , Permeable Conduits , Migrating Copper-bearing Solutions , Sediments , Intrusive Rocks , Supergene Enrichment Process , Mackay Theses and Dissertations Grant Collection
Alternative Title
Abstract
The ore deposits at Copper Basin consist principally of supergene enriched copper minerals contained in arenites of the Cambrian Harmony Formation. Hypogene metallization is thought to be coincident with Eocene quartz monzonites which intrude the host rocks, causing widespread metamorphism.
Hypogene ore was introduced via NNE and NNW fissures, filled fissures and replaced metasomatized calcareous shales in the upper part of the Harmony Formation. Subsequent oxidation of hypogene chalcopyrite-pyrrhotite-pyrite tactite zones has formed at least three commercial supergene copper deposits. Important secondary ore controls are fracture intersections with favorable beds, creating permeable conduits for migrating copper-bearing solutions. Considerable alteration of the sediments and intrusive rocks attended the supergene enrichment process.
Description
Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.
Citation
Publisher
University of Nevada, Reno
License
In Copyright(All Rights Reserved)