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Sample SSP6

NavDat sample number 54569 · TUFF

Sample

Sample IDSSP6
Rock nameTUFF
Rock typeVOLCANIC
CompositionFELSIC
MaterialIGNEOUS
CommentSoda Springs, Sierra County, California [NE 1/4, NE 1/4, SE 1/4, SE 1/4, Sec 34, T 17 N, R 14 E, along Soda Springs Rd. at outlet to Ice Lakes] Stratigraphic section of both the lower and upper phase of the Nine Hill Tuff, lying without intervening sediment on a biotitic unwelded tuff of unknown affinity. Tuff in this section contains granitic lithic fragments up to 1 cm in size, similar to material in the BH samples. Un welded grey-white phenocryst poor, slightly pumiceous lower pahse tuff a few cm above the biotitic tuff, 2 m below a few-cm thick clay zone at the glassy/devitrivified transition.

Location

Latitude39.2942
Longitude-120.382
State / provinceCalifornia
Location commentSoda Springs Road Stratigraphic Section

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
22.78 19.21 26.34

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
SIO275.75WT%XRF
TIO20.19WT%XRF
AL2O313.62WT%XRF
FEO0.9WT%XRF
MNO0.03WT%XRF
MGO-0.43WT%XRF
CAO0.4WT%XRF
NA2O4.1WT%XRF
K2O5.02WT%XRF
P2O5-0.08WT%XRF
ZN36PPMXRF
GA22PPMXRF
RB208PPMXRF
SR21PPMXRF
Y42PPMXRF
ZR403PPMXRF
NB29PPMXRF
CS6PPMXRF
BA188PPMXRF
PB27PPMXRF
TH33PPMXRF
LA74PPMXRF
CE149PPMXRF
PR18PPMXRF
ND57PPMXRF
SM-8PPMXRF

References