Chemical Analyses of Rocks and Glass Separates from Crater Lake National Park and Vicinity
Bruggman PE, Bacon CR, Aruscavage PJ, Lerner RW, Schwarz LJ, Stewart KC. 1987. Chemical Analyses of Rocks and Glass Separates from Crater Lake National Park and Vicinity. U.S. Geological Survey (USGS) Open-File Report. 87-57. United States Geological Survey
This report contains chemical analyses of rocks and glass separates from lava flows, domes, and pyroclastic deposits from Crater Lake National Park and vicinity, Oregon. Included are all analyzed samples collected by C. R. Bacon and assistants (W. A. Bartling [1979, 19801, S. W. Novak [19811, M. H. Moench [1982], C. A. Michelsen [1983], and M. M. Hirshmann [1984, 1985]) that are either (1) from units believed to be related to the climactic magma chamber that was responsible for the caldera-forming eruption about 6850 B.P. or (2) from monogenetic vents and small basaltic to andesitic shield volcanoes in the vicinity of Mount Mazama, regardless of age. This report is intended to accompany papers in preparation by C. R. Bacon and T. H. Druitt.
- Type
- Published Report
- Authors
- Bruggman, P.; Bacon, C.; Aruscavage, P.; Lerner, R.; Schwarz, L.; Stewart, K.
- Date of Issue
- 1987
- Publisher
- United States Geological Survey
- Units
- CRLA
- Keywords
- Analysis, Chemical, Crater Lake, Crater Lake National Park, ehistory, Geochemistry, Glass, glass (geology), History, Physical Sciences, Rock, Rocks, vicinity