Search USGS⌕ Search

Geology topics

R. B. Tripp

Publications and source records attributed to R. B. Tripp.

At least 37 records · Page 2Linked to original sources
USGS1980

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↗
USGS1980

Histograms and correlation table for selected elements in samples of the ash of black spruce needles from the Tanacross Quadrangle, Alaska

These histograms and correlation table show the distribution and abundance of, and correlations between, the populations of 21 elements in the ash of black spruce (Picea Mariana B.S.P.) needles collected throughout most of the Tanacross 1:250,000-scale quadrangle. The samples were collected during reconnaissance geochemical studies as part of the U.S. Geological Survey's Alaskan Mineral Resource Assessment Program. Related data for black spruce are presented in other reports (Day, Curtin, and Tripp, 1979 a,b,c) , and background information on the mineral resource assessment of the Tanacross quadrangle is presented in a U.S. Geological Survey Circular (Foster and others, 1976).

Alaska↗
USGS1980

Histograms and correlation table for selected elements in samples of the ash of ground birch leaves from the Tanacross Quadrangle, Alaska

These histograms and correlation table show the distribution and abundance of, and correlations between, the populations of 21 elements in the ash of ground birch (Betula rotundifolia Sarg.) leaves collected throughout most of the Tanacross 1:250,000-scale quadrangle. The samples were collected during reconnaissance geochemical studies as part of the U.S. Geological Survey's Alaskan Mineral Resource Assessment Program. Related data for ground birch are presented in other reports (Day, Curtin, and Tripp, 1979 a,b,c), and background information on the mineral resource assessment of the Tanacross quadrangle is presented in a U.S. Geological Survey Circular (Foster and others, 1976).

Alaska↗