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Sample PD-1

NavDat sample number 7965 · BASALT

Sample

Sample IDPD-1
Rock nameBASALT
Rock typeVOLCANIC
CompositionMAFIC
MaterialIGNEOUS
Collected byK.S. Murray, 1975
CommentSparsely porphyritic microphenocryst phases include twinned aluminous pyroxene, 7%; olivine, 6%; plagioclase, 4%; and hypersthene, 1%. In the hypocrystalline groundmass, plagioclase represents 40%, glass 10%, iron oxides 12%, and devitrification products 10%.

Location

Latitude33.4486
Longitude-114.87
Locationnorthern Palo Verde Mountains
State / provinceCalifornia
Volcanic fieldPalo Verde Mountain

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
17.2 16.3 18.1

Analyses

No chemical analyses are stored for this sample.

References