Analytical data for the Hells Canyon Study Area, Wallowa County, Oregon, and Idaho and Adams Counties, Idaho
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Open-File Report↗
Geology topics
J.C. Negri
Publications and source records attributed to J.C. Negri.
Maps showing the distribution of radon and uranium in water samples and thorium and uranium in dry-stream sediment samples in the Sierra Ancha Wilderness and Salome Study Area, Gila County, Arizona
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Arizona↗
Map showing the distribution of minerals in the heavy-mineral concentrate of stream sediments in the Sierra Ancha Wilderness and Salome Study Area, Gila County, Arizona
Reconnaissance geochemical and mineralogical sampling was done in the Sierra Ancha Wilderness and Salome Study Area during April and May 1978. This map shows the distribution of chalcopyrite, florite, galena, scheelite, and lead-rich iron oxides in the nonmagnetic fraction of the heavy-mineral concentrate of stream sediment samples collected during the reconnaissance study.
Arizona↗