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Sample S92-H284

NavDat sample number 37037 · BASALTIC-ANDESITE

Sample

Sample IDS92-H284
Rock nameBASALTIC-ANDESITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
CommentOutcrop of lava flow of slope approximately500ft below sample S92-H282. Reversed-polarity. May be same location as Wise sample 114 Wise,1969. Olivine 3% and plagioclase 2% phenocrysts in a very fine-grained intergranular groundmass of plagioclase, pyroxene, and opaque minerals; essentially free of alteraton; similar chemically and petrographically to sample S92-H282

Location

Latitude45.2518
Longitude-121.544
State / provinceOregon

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
2.07 1.91 2.23

Analyses

No chemical analyses are stored for this sample.

References