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Sample USGSM-BH29

NavDat sample number 2899 · DACITE

Sample

Sample IDUSGSM-BH29
Rock nameDACITE
Rock typeVOLCANIC
CompositionFELSIC
MaterialIGNEOUS
CommentLight-gray porphyritic dacite with phenocrysts of plagioclase, biotite, and hornblende in a fine-grained groundmass.

Location

Latitude38.1953
Longitude-118.962
LocationMono County, CA
State / provinceCalifornia
Volcanic fieldBodie Mining District and Bodie Hills Volcanic Field
Location commentalong old railroad grade, 3 mi E of Bodie

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
8.9 8.7 9.1

Analyses

No chemical analyses are stored for this sample.

References