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Sample PD-3

NavDat sample number 7967 · ANDESITE

Sample

Sample IDPD-3
Rock nameANDESITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
Collected byK.S. Murray, 1975
CommentNearly nonporphyritic, plagioclase microphenocrysts represent only 2% by volume of the total rock. Vitric portion of the hypocrystalline groundmass still fresh.

Location

Latitude33.4267
Longitude-114.869
Locationnorthern Palo Verde Mountains
State / provinceCalifornia
Volcanic fieldPalo Verde Mountain

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
25 23.9 26.1

Analyses

No chemical analyses are stored for this sample.

References