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Sample USGSM-710-7

NavDat sample number 3006 · RHYOLITE

Sample

Sample IDUSGSM-710-7
Rock nameRHYOLITE
Rock typeVOLCANIC
CompositionFELSIC
MaterialIGNEOUS
Collected byM.L. Silberman, U.S. Geological Survey
CommentThis rock is a more felsic variety of the biotite hornblende andesite porphyry of west Brawley. It shows the large feldspar phenocrysts and is approximately the same age.

Location

Latitude38.2822
Longitude-118.928
LocationAurora-Cedar Hill-Trench Canyon Alkali Valley Area
State / provinceNevada
FormationOf Bodie Canyon
Location commentMineral County, NV

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
11.5 11.3 11.7

Analyses

No chemical analyses are stored for this sample.

References