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Sample USGSM-BH32

NavDat sample number 2893 · DACITE

Sample

Sample IDUSGSM-BH32
Rock nameDACITE
Rock typeVOLCANIC
CompositionFELSIC
MaterialIGNEOUS
CommentLight-gray porphyritic dacite with plagioclase, biotite, and sparse hornblende phenocrysts in a very fine grained, felty groundmass. Hornblendes are mostly oxidized.

Location

Latitude38.1928
Longitude-119.002
LocationMono County, CA
State / provinceCalifornia
Volcanic fieldBodie Mining District and Bodie Hills Volcanic Field
Location comment2500 ft NE of Sugarloaf

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
9 8.8 9.2

Analyses

No chemical analyses are stored for this sample.

References