Geochemical Results from a Rock Geochemical Survey in the Mount Belknap Caldera Vicinity, Utah

Authors

Robert E. Tucker
William R. Miller
J. N. Motooka
U.S. Geological Survey

Document Type

Report

Publication Date

1981

Abstract

Rock, stream-sediment, and hydrogeochemical surveys were conducted in the Mount Belknap caldera area, south-central Utah, during the summer of 1979. The presence of leucocratic rocks and relatively high concentrations of the elements Nb, Be, Ga, Y, Pb, Sn, Mo, and F with corresponding low concentrations of the elements Ba, Mg, Ca, Fe, Sr, and Cu suggests that late phase highly differentiated felsic magmas were intruded and (or) erupted in the caldera vicinity. The presence of Mo and Sn in the rocks and F in the water samples suggest that the ore elements were concentrated, first in residual fluids in the magma and possibly later in epigenetic mineral deposits. The data suggest several target areas for further exploration.

Comments

Open-File Report 81-575

Recommended Citation

Tucker, Robert E.; Miller, William R.; Motooka, J. N.; and U.S. Geological Survey, "Geochemical Results from a Rock Geochemical Survey in the Mount Belknap Caldera Vicinity, Utah" (1981). All U.S. Government Documents (Utah Regional Depository). Paper 564.
https://digitalcommons.usu.edu/govdocs/564