Subject: Copper ores / Spatial Coverage: Petersburg Region - Yale University Library GeoBlacklight Search Results

Start Over Subject Copper ores Spatial Coverage Petersburg Region

1. Distribution and abundance of copper, determined by spectrographic analysis, in nonmagnetic fraction of heavy-mineral concentrates from stream sediments, Petersburg area southeast Alaska [cartographic material]

1983. 2002-06-01T04:00:00Z. 2023-07-19T03:01:25Z. Geological Survey (U.S.). U.S. Dept. of the Interior, Geological Survey. English. cartographic image. Public. Alaska and Petersburg Region.

2. Distribution and abundance of copper, determined by spectrographic analysis, in the minus-80-mesh fraction of stream sediments, Petersburg area southeast Alaska [cartographic material]

1983. 2002-06-01T04:00:00Z. 2023-07-19T03:01:25Z. Geological Survey (U.S.). U.S. Dept. of the Interior, Geological Survey. English. cartographic image. Public. Alaska and Petersburg Region.