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Sample SSP2

NavDat sample number 54566 · TUFF

Sample

Sample IDSSP2
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
SIO272.05WT%XRF
TIO20.17WT%XRF
AL2O313.68WT%XRF
FEO1.79WT%XRF
MNO0.06WT%XRF
MGO-0.43WT%XRF
CAO0.56WT%XRF
NA2O2.19WT%XRF
K2O5.38WT%XRF
P2O5-0.08WT%XRF
S-30PPMXRF
CL522PPMXRF
ZN125PPMXRF
GA22PPMXRF
RB241PPMXRF
SR22PPMXRF
Y38PPMXRF
ZR414PPMXRF
NB30PPMXRF
CS8PPMXRF
BA98PPMXRF
PB55PPMXRF
TH26PPMXRF
LA71PPMXRF
CE134PPMXRF
PR15PPMXRF
ND50PPMXRF
SM9PPMXRF

References