Geologic Map of the Swansea-Copper Penny Area, Central Buckskin Mountains, West-Central Arizona v. 2.0

Spencer, Jon E.; Reynolds, Stephen J.

Name:

SwanseaCopperPenny.pdf

Size:

80.00Mb

Format:

PDF

Description:

Layout

Download

Name:

SwanseaCopperPenny-pamphlet.pdf

Size:

1.273Mb

Format:

PDF

Description:

Pamphlet

Download

Name:

SwanseaCopperPenny-metadata.xml

Size:

5.691Kb

Format:

XML

Description:

Metadata

Download

Name:

SwanseaCopperPenny.kmz

Size:

13.90Mb

Format:

Unknown

Description:

KMZ

Download

Name:

SwanseaCopper.gdb.zip

Size:

472.3Kb

Format:

application/zip

Description:

Geodatabase

Download

Name:

SwanseaCopperPenny.gpkg

Size:

6.062Mb

Format:

Unknown

Description:

GeoPackage

Download

View more files

Author

Spencer, Jon E.
Reynolds, Stephen J.

Affiliation

Arizona Geological Survey

Issue Date

2024

Metadata

Show full item record

Citation

Spencer, J. E. and Reynolds, S. J., 2024, Geologic Map of the Swansea-Copper Penny Area, Central Buckskin Mountains, West-Central Arizona v. 2.0, DGM-261

Publisher

Arizona Geological Survey (Tucson, AZ)

Description

The Buckskin-Rawhide detachment fault separates a variety of Proterozoic through Cenozoic rock types from underlying mylonitic crystalline rocks. In the Swansea-Copper Penny area of the central Buckskin Mountains, the detachment fault defines a gently ENE-plunging synform. Upper-plate rocks are preserved in the synform, whereas lower-plate mylonitic crystalline rocks compose the flanking, topographically higher, ENE-trending antiforms. Mylonitization of lower-plate crystalline rocks was the result of ductile shearing along the down-dip projection of the Buckskin-Rawhide detachment fault early in its movement history. Two assemblages of rocks are preserved in the upper plate of the Buckskin-Rawhide detachment fault in the Swansea-Copper Penny area: (l) Pre-Tertiary rocks, especially Paleozoic and Mesozoic metasedimentary rocks, are complexly deformed and have undergone greenschist-facies metamorphism. Metamorphism, folding, cleavage development, and tectonic interleaving of diverse rock types is interpreted to be the result of Mesozoic thrust faulting. (2) A lithologically diverse stratigraphic sequence of Miocene and upper Oligocene(?) volcanic and sedimentary rocks generally dips moderately to steeply to the southwest and is folded into two north-south trending, south-plunging anticlines. This geodatabase is part of a digital republication of a geologic map originally created by the Arizona Geological Survey with financial support from United States Geological Survey. Preparation for republication was conducted by students from the University of Arizona with financial support from the U.S. Geological Survey, National Geological and Geophysical Data Preservation Program (G23AP00215) and included the production of a new GIS geodatabase and a revised map layout. It is based on interpretations that were made from the data available at the time it was created. The AZGS does not guarantee this map or digital data to be free of errors nor assume liability for interpretations made from this map or digital data, or decisions based thereon. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government.

URI

http://hdl.handle.net/10150/678572

Additional Links

https://library.azgs.arizona.edu/

Language

Series/Report no.

DGM-261

Rights

Collection Information

Documents in the AZGS Documents Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact azgs-info@email.arizona.edu.

North Bounding Coordinate

34.187

South Bounding Coordinate

34.154

West Bounding Coordinate

-113.907

East Bounding Coordinate

-113.835

Collections

AZGS Document Repository