U.S. Geological Survey Photographic Library

  Home |  About the USGS Photo Library |  Resolutions and Downloading |  Contact Us |  Latest Additions  
link to Searching Tips Select a
Search Method:
Key Word Search

Earthquakes

Mines, Mills, Quarries

Mount St. Helens

National Parks

Photographers

Pioneer Photographers

Portrait Collection

This Month in History

This Month
in History

ID. Park, C.F. 91

Click on photo for higher resolution.

Silicified and mineralized breccia, light gray is mostly dolomite with a little translucent quartz. Dark gray is jasperoid and ore minerals. Veinlet along lower edge of specimen contains sphalerite in carbonates, Pend Oreille mine. Pend Oreille County, Washington. 1936. Plate 23-B, U.S.Geological Survey Professional paper 202. 1943.

Silicified and mineralized breccia, light gray is mostly dolomite with a little translucent quartz. Dark gray is jasperoid and ore minerals. Veinlet along lower edge of specimen contains sphalerite in carbonates, Pend Oreille mine. Pend Oreille County, Washington. 1936. Plate 23-B, U.S.Geological Survey Professional paper 202. 1943.

Image file: /htmllib/btch289/btch289j/btch289z/pcf00091.jpg
   

Accessibility FOIA Privacy Policies and Notices

Take Pride in America home page. FirstGov button U.S. Department of the Interior | U.S. Geological Survey
URL: http://libraryphoto.cr.usgs.gov/cgi-bin/show_picture.cgi?ID=ID.%20Park%2C%20C.F.%20%2091
Page Contact Information: Library Web Team
Page Last Modified: Friday, April 20, 2006