Partitioning of gold in young calc-alkalic volcanic rocks from Guatemala

Authors

Theodore J. Bornhorst, Michigan Technological UniversityFollow
William I. Rose, Michigan Technological UniversityFollow

Document Type

Article

Publication Date

5-1986

Abstract

Gold analyses of whole rock, mineral, and groundmass of seven calc-alkalic volcanic rocks (basalt to rhyolite) show that gold is less abundant in the dominant phenocrystic phases than in the whole rock; groundmass concentrations are also lower than whole rock. Crystal-liquid partition coefficients arehornblende, and about 1 for olivine, pyroxene, magnetite, and biotite. If only the principal phases are considered, the bulk gold partition coefficient is typically

Publisher's Statement

Publisher's version of record: https://doi.org/10.1086/629039

Publication Title

The Journal of Geology

Recommended Citation

Bornhorst, T. J., & Rose, W. I. (1986). Partitioning of gold in young calc-alkalic volcanic rocks from Guatemala. The Journal of Geology, 94(3), 412-418. http://doi.org/10.1086/629039
Retrieved from: https://digitalcommons.mtu.edu/geo-fp/126