Contact porphyry mass of limestone breccia and shale at head of southern Deadwood open cut. Black Hills, Lawrence County, South Dakota. n.d.
Summary
Album caption: Contact porphyry mass over 6 ft. of limestone breccia and shale, both overlying massive footwall slates, head of southern Deadwood terra open cut, looking S. 55W. Black Hills, S.D. Lawrence County, Deadwood quad., South Dakota. Handwritten notes on album caption: See mounted photo in file.
Summary
Album caption: Contact porphyry mass over 6 ft. of limestone breccia and shale, both overlying massive footwall slates, head of southern Deadwood terra open cut, looking S. 55W. Black Hills, S.D. Lawrence County, Deadwood quad., South Dakota.
Handwritten notes on album caption: See mounted photo in file.
Click on title to download individual files attached to this item.
jta00007.jpg
8.77 MB
image/jpeg
jta00007.tif
29.61 MB
image/geotiff
Material Request Instructions
Available in the U.S. Geological Survey Denver Library Photographic Collection, Jaggar, T.A., Jr. Collection.
Rights
This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html