Reconnaissance geochemical assessment of the Clover Mountains Bureau of Land Management Wilderness Study Area (NV-050-139), Lincoln County, Nevada

Abstract

Bureau of Mines to conduct mineral surveys on certain areas to determine their mineral values. Results must be made available to the public and submitted to the President and to the Congress. This report presents the results of a mineral survey of the Clover Mountains Wilderness Study Area,

Mineral resources of the Clover Mountains Wilderness Study Area, Lincoln County, Nevada

“…Inspection of the data on heavy-mineral concentrates indicates areas that have anomalous concentrations of barium and thorium along the west edge of the study area (Hoffman and Day, 1984). The barium anomalies appear to be associated with an area of moderately to intensely hydrothermally altered rhyolitic and tuffaceous rocks mapped by Ekren and others (1977).…”

“…The U.S. Geological Survey carried out field investigations intermittently between 1983 and March of 1986. This work included geochemical sampling and analysis (Hoffman and Day, 1984), geologic mapping (R.L. Elliott, and K.R.…”

“…A total of 40 rock, 136 stream-sediment, and 133 nonmagnetic heavy-mineral-concentrate samples were collected from the study area by the U.S. Geological Survey (Hoffman and Day, 1984). Samples were analyzed for 31 elements using a six-step semiquantitative-emission spectrographic method (Grimes and Marranzino, 1968).…”