Mesozoic tectonic evolution of the Twin Buttes Mine area, Pima County, Arizona: implications for a regional tectonic contro of ore deposits in the Pima mining district

Persistent Link:
http://hdl.handle.net/10150/557930
Title:
Mesozoic tectonic evolution of the Twin Buttes Mine area, Pima County, Arizona: implications for a regional tectonic contro of ore deposits in the Pima mining district
Author:
Walker, Scott Donald
Issue Date:
1982
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Ground magnetic data are consistent with the interpretation that Lower Jurassic volcanic rocks of the Twin Buttes mine area (Ox Frame Volcanics) are confined to a distinct block by the northwest trending Sawmill Canyon Fault Zone which was initially active during the Lower Jurassic. Possible reactivation of the Sawmill Canyon Fault zone in the Middle Jurassic as a left-lateral wrench fault is recorded by the deposition of syntectonic red-beds (Rodolfo Formation). Lower Cretaceous rocks (Whitcomb Quartzite, Glance Conglomerate, and Angelica Akrose) were deposited in alluvial environments resulting from additional reactivation of the Sawmill Canyon Fault Zone. Upper Cretaceous (Laramide) deformation involved the formation of northwest trending folds and northwest and northeast trending reverse, tear, and later block faults during the uplift of Precambrian basement. Ore deposits of the Pima mining district are localized along a northeast trending fault zone with evidence for initial activity in the Middle Jurassic and later reactivation during the Laramide.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Geology -- Arizona -- Twin Buttes Mine.; Plate tectonics.; Geology, Stratigraphic -- Jurassic.; Geology -- Arizona -- Pima County.; maps
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Geosciences; Graduate College
Degree Grantor:
University of Arizona

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleMesozoic tectonic evolution of the Twin Buttes Mine area, Pima County, Arizona: implications for a regional tectonic contro of ore deposits in the Pima mining districten
dc.creatorWalker, Scott Donalden
dc.contributor.authorWalker, Scott Donalden
dc.date.issued1982en
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en
dc.description.abstractGround magnetic data are consistent with the interpretation that Lower Jurassic volcanic rocks of the Twin Buttes mine area (Ox Frame Volcanics) are confined to a distinct block by the northwest trending Sawmill Canyon Fault Zone which was initially active during the Lower Jurassic. Possible reactivation of the Sawmill Canyon Fault zone in the Middle Jurassic as a left-lateral wrench fault is recorded by the deposition of syntectonic red-beds (Rodolfo Formation). Lower Cretaceous rocks (Whitcomb Quartzite, Glance Conglomerate, and Angelica Akrose) were deposited in alluvial environments resulting from additional reactivation of the Sawmill Canyon Fault Zone. Upper Cretaceous (Laramide) deformation involved the formation of northwest trending folds and northwest and northeast trending reverse, tear, and later block faults during the uplift of Precambrian basement. Ore deposits of the Pima mining district are localized along a northeast trending fault zone with evidence for initial activity in the Middle Jurassic and later reactivation during the Laramide.en
dc.description.noteThis item was digitized from a paper original and/or a microfilm copy. If you need higher-resolution images for any content in this item, please contact us at repository@u.library.arizona.edu.en
dc.typetexten
dc.typeThesis-Reproduction (electronic)en
dc.subjectGeology -- Arizona -- Twin Buttes Mine.en
dc.subjectPlate tectonics.en
dc.subjectGeology, Stratigraphic -- Jurassic.en
dc.subjectGeology -- Arizona -- Pima County.en
dc.subjectmaps-
thesis.degree.nameM.S.en
thesis.degree.levelmastersen
thesis.degree.disciplineGeosciencesen
thesis.degree.disciplineGraduate Collegeen
thesis.degree.grantorUniversity of Arizonaen
dc.identifier.oclc10171651en
dc.identifier.oclc10171607en
dc.identifier.bibrecord.b14327193en
dc.identifier.bibrecord.b14327181en
dc.identifier.callnumberE9791 1982 315en
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