Publication Citation

USGS Series Scientific Investigations Map
Report Number 2777
Title Maps Showing Geology, Structure, and Geophysics of the Central Black Hills, South Dakota
Edition Version 1.0
Language ENGLISH
Author(s) Redden, Jack A.; DeWitt, Ed
Year 2008
Originating office Central Mineral Resources Team
USGS Library Call Number
Physical description Report: iv, 44 p.; 2 Map Sheets - Sheet 1: 44 x 61.5 inches, Sheet 2: 43 x 57 inches; Downloads Directory
ISBN 9781411322141
Northernmost latitude 0443000
Southernmost latitude 0433000
Easternmost longitude -1030000
Westernmost longitude -1040000

Online Document Versions

Copies of the original may be available.

For more information or ordering assistance, call 1-888-ASK-USGS (1-888-275-8747), visit http://ask.usgs.gov, contact any USGS Earth Science Information Center (ESIC), or write:

USGS Information Services
Box 25286
Denver, CO 80225
Abstract

This 1:100,000-scale digital geologic map details the complex Early Proterozoic granitic rocks, Early Proterozoic supracrustal metamorphic rocks, and Archean crystalline basement of the Black Hills. The granitic rocks host pegmatite deposits renowned for their feldspar, mica, spodumene, and beryl. The supracrustal rocks host the Homestake gold mine, which produced more than 40 million ounces of gold over a 125-year lifetime. The map documents the Laramide deformation of Paleozoic and Mesozoic cover rocks; and shows the distribution of Laramide plutonic rocks associated with precious-metals deposits. Four 1:300,000-scale maps summarize Laramide structures; Early Proterozoic structures; aeromagnetic anomalies; and gravity anomalies. Three 1:500,000-scale maps show geophysical interpretations of buried Early Proterozoic to Archean rocks in western South Dakota and eastern Wyoming.