Origin and geological significance of mylonitic shear zones, northern Lucy Gray Range, Clark County, Nevada

The Beer Bottle Pass pluton, at the northern end of the Lucy Gray Range, Nevada, is part of a continent-scale belt of 1.4 Ga intrusive rocks that extend from California to Labrador. These granites are conventionally interpreted as anorogenic; however, recent work has documented that some of these plutons may have been deformed during or after emplacement. In the Lucy Gray Range, a series of mylonite zones is spatially associated with the Beer Bottle Pass pluton. An integrated study involving field and laboratory work, was used to distinguish between three possible scenarios for the origin of the mylonites: (1) intrusion into an active shear zone, (2) post-emplacement ductile deformation, and (3) mylonitization during and as a consequence of forcible pluton emplacement. Observations made during this study indicate that forcible intrusion is unlikely and the mylonites are a result of late synkinematic or post emplacement deformation.

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Geology

Grantor dc:publisher

University of Nevada, Las Vegas

Year

1994

Author dc:creator

• Christensen, Clinton H

Statement dc:rights

• IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Language dc:language

English

Identifier

https://oasis.library.unlv.edu/rtds/407

OAI identifier oai:identifier

oai:oasis.library.unlv.edu:rtds-1406