Precambrian Geology of the Cottonwood Cliffs Area, Mohave County, Arizona

Beard, Linda Sue

dc.contributor.advisor	Davis, George H.	en_US
dc.contributor.author	Beard, Linda Sue
dc.date.accessioned	2012-09-15T01:55:49Z
dc.date.available	2012-09-15T01:55:49Z
dc.date.issued	1985
dc.identifier.uri	http://hdl.handle.net/10150/244095
dc.description.abstract	A belt of Early Proterozoic rocks crops out in the Cottonwood Cliffs area, northwest Arizona. The belt contains an eastern and a western assemblage separated by the Slate Mountain fault. The western assemblage consists of mafic to felsic metavolcanic rocks, metapelites, and metaconglomerates. The eastern assemblage consists of phyllites, felsic to intermediate metavolcanic rocks, metagraywackes, and metagabbro bodies. The belt is bounded to the east by foliated granodiorite. The Valentine granite intruded the belt on the west and north. Steeply-plunging lineations and fold axes, and northeast-trending vertical foliation dominate the structural fabric. The regional elongation direction is near-vertical, as indicated by mineral and pebble lineations, and is parallel to fold axes. Although only one deformational event is evident, the intensity of that event may have obliterated evidence of any earlier deformation. Tertiary basalts and the Peach Springs Tuff locally overly the metamorphic rocks. Cenozoic normal faults in the area are mostly of minor displacement.
dc.language.iso	en_US	en_US
dc.publisher	The University of Arizona.	en_US
dc.rights	Copyright © is held by the author. Digital access to this material is made possible by the Antevs Library, Department of Geosciences, and 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 or the department.	en_US
dc.subject	Arizona	en_US
dc.subject	axial-plane structures	en_US
dc.subject	Cenozoic	en_US
dc.subject	Cottonwood Cliffs	en_US
dc.subject	folds	en_US
dc.subject	foliation	en_US
dc.subject	intrusions	en_US
dc.subject	lineation	en_US
dc.subject	lithostratigraphy	en_US
dc.subject	metamorphic rocks	en_US
dc.subject	Miocene	en_US
dc.subject	Mohave County Arizona	en_US
dc.subject	Neogene	en_US
dc.subject	northwestern Arizona	en_US
dc.subject	Peach Springs Tuff	en_US
dc.subject	Precambrian	en_US
dc.subject	Proterozoic	en_US
dc.subject	Slate Mountain Fault	en_US
dc.subject	stratigraphy	en_US
dc.subject	structural analysis	en_US
dc.subject	Tertiary	en_US
dc.subject	United States	en_US
dc.subject	upper Precambrian	en_US
dc.subject	Valentine Granite	en_US
dc.subject	Geology, Stratigraphic -- Precambrian	en_US
dc.subject	Geology -- Arizona -- Mohave County	en_US
dc.title	Precambrian Geology of the Cottonwood Cliffs Area, Mohave County, Arizona	en_US
dc.type	text	en_US
dc.type	Thesis-Reproduction (electronic)	en_US
dc.contributor.chair	Davis, George H.	en_US
dc.identifier.oclc	15040742
thesis.degree.grantor	University of Arizona	en_US
thesis.degree.level	masters	en_US
dc.contributor.committeemember	Coney, Peter J.	en_US
dc.contributor.committeemember	Lucchitta, Ivo	en_US
thesis.degree.discipline	Graduate College	en_US
thesis.degree.discipline	Geosciences	en_US
thesis.degree.name	M.S.	en_US
dc.description.note	Antevs Library	en_US
dc.description.collectioninformation	This item is part of the Geosciences Theses collection. It was digitized from a physical copy provided by the Antevs Library, Department of Geosciences, University of Arizona. For more information about items in this collection, please email the Antevs Library, antevs@geo.arizona.edu.	en_US
dc.contributor.creator	Beard, Linda Sue	en_US
dc.identifier.georef	1987-033568
refterms.dateFOA	2018-04-05T01:07:00Z
html.description.abstract	A belt of Early Proterozoic rocks crops out in the Cottonwood Cliffs area, northwest Arizona. The belt contains an eastern and a western assemblage separated by the Slate Mountain fault. The western assemblage consists of mafic to felsic metavolcanic rocks, metapelites, and metaconglomerates. The eastern assemblage consists of phyllites, felsic to intermediate metavolcanic rocks, metagraywackes, and metagabbro bodies. The belt is bounded to the east by foliated granodiorite. The Valentine granite intruded the belt on the west and north. Steeply-plunging lineations and fold axes, and northeast-trending vertical foliation dominate the structural fabric. The regional elongation direction is near-vertical, as indicated by mineral and pebble lineations, and is parallel to fold axes. Although only one deformational event is evident, the intensity of that event may have obliterated evidence of any earlier deformation. Tertiary basalts and the Peach Springs Tuff locally overly the metamorphic rocks. Cenozoic normal faults in the area are mostly of minor displacement.