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Sample UE20C-4539

NavDat sample number 86026 · PYROCLASTIC-FALL

Sample

Sample IDUE20C-4539
Rock namePYROCLASTIC-FALL
Rock typeVOLCANIC
CompositionFELSIC
MaterialIGNEOUS
CommentCore is moderate orange pink to very pale orange zeolitic nonwelded tuff with scarce white pumice to 9 mm, scarce to common lithics to 3.5 mm, and scarce to rare black biotite to 1.2 mm and felsics to 0.8 mm.

Location

Latitude37.2294
Longitude-116.472
State / provinceNEVADA

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
12.85 12.9 12.8

Analyses

Whole Rock

ItemValueStd. dev.UnitMethod
HFO25.8404PPMNAA
MNO0.1901WT%NAA
MN0.1472WT%NAA
UO29.5483PPMNAA

References