← Search

Sample YAD-1

NavDat sample number 12138 · ANDESITE

Sample

Sample IDYAD-1
Rock nameANDESITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
CommentLight brown and gray, sparsely finely porphyritic with olivine and hypersthene phenocrysts in pilotaxitic flow banded matirx, strong platey jointing

Location

Latitude40.6
Longitude-120.642
State / provinceCalifornia
Volcanic fieldWalker Lane

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
3.1 3 3.2

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
K2O2.344WT%UNKNOWN

References