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Sample IPK2

NavDat sample number 37518 · BASALTIC-ANDESITE

Sample

Sample IDIPK2
Rock nameBASALTIC-ANDESITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
Commentricher in phenocrysts than other rocks up to 55%; particularly distinguished by presence of hornblende which is absent from other Jackson Hole volcanic rocks but common in Absaroka volcanic rocks; plagioclase and hornblende show many disequilibrium features

Location

Latitude43.2722
Longitude-110.907
Locationoutcrop NE of Indian Peak
State / provinceWyoming

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
6 3 10

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
SIO254.5WT%XRF
AL2O319.14WT%XRF
TIO20.506WT%XRF
FEOT6.18WT%XRF
MNO0.129WT%XRF
CAO8.82WT%XRF
MGO2.42WT%XRF
K2O3.62WT%XRF
NA2O3.98WT%XRF
P2O50.302WT%XRF
NI13PPMXRF
CR43PPMXRF
SC16PPMXRF
V98PPMXRF
BA414PPMXRF
RB92PPMXRF
SR1003PPMXRF
ZR183PPMXRF
Y28PPMXRF
NB8.2PPMXRF
GA20PPMXRF
CU35PPMXRF
ZN75PPMXRF
PB22PPMXRF
LA32PPMXRF
CE92PPMXRF
TH9PPMXRF

References