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Sample USGSM-854-1

NavDat sample number 2898 · DACITE

Sample

Sample IDUSGSM-854-1
Rock nameDACITE
Rock typeVOLCANIC
CompositionFELSIC
MaterialIGNEOUS
CommentLight-gray porphyritic dacite with phenocrysts of plagioclase and biotite along with small hornblende crystals in a fine-grained groundmass.

Location

Latitude38.181
Longitude-119.003
LocationMono County, CA
State / provinceCalifornia
Volcanic fieldBodie Mining District and Bodie Hills Volcanic Field
Location comment3000 ft SE of Sugarloaf

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
8.9 8.7 9.1

Analyses

No chemical analyses are stored for this sample.

References