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SAMPLE INFO : 94SJP60
Sample ID:94SJP60
Station ID:94SJP60
Latitude:62.29155905
Longitude:-143.2351828
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Dome
Field Lithology:Rhyolite
Text Description:
Blocky, rubbly outcrop of Dome D at the top of Site 12. Fine grained, weakly porphyritic with a matrix of symplectic feldspar and quartz. Phenocrysts of feldspar are present. There are several small blue, green and brown microphenocrysts present. Electron microprobe analysis indicates that color is a poor guide to determining what the microphenocrysts are. The EMP analyses are amphibole-like, arfvedsonite? and astrophyllite?. Apatite needles are also present.

References:
Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final UnitMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-majorsREF majorsMETH majorsFe2O3/Fe203T origFeO/FeOT origVolatiles csvMETH volatilesCsRbBaSrLaCePrNdSmEuGdTbDyHoErTmYbLuYZrNbHfTaPbThUScVCrFeCoNiCuZnGaMoAsNaKRef trace1METH trace1RbBaSrLaCeNdSmEuGdDyErYbLuYZrNbPbThUScTiVCrNiCuZnGaRef trace2METH trace2Light csvHalogen csvother major csvother lile csvother ree csvother hfse csvother hpe csvother tm csvother misc csv
94SJP6062.29155905-143.2351828Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T6N, R12E, S20Blocky, rubbly outcrop of Dome D at the top of Site 12. Fine grained, weakly porphyritic with a matrix of symplectic feldspar and quartz. Phenocrysts of feldspar are present. There are several small blue, green and brown microphenocrysts present. Electron microprobe analysis indicates that color is a poor guide to determining what the microphenocrysts are. The EMP analyses are amphibole-like, arfvedsonite? and astrophyllite?. Apatite needles are also present.94SJP60LavaWhole-rock 75.81 0.09 12.81 1.6 0.07 0.1 0.14 5.25 4.15bdl 0 99.6955DCP1.781.6LOI=0.06DCP 71 393 1 47.7 100.6 43.7 8.4 0.4 8.6 9.8 5.2 5.9 0.9 57 457 22.4 13 3.2 7.5 17bdl 1 5 91 21.2 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc, V; MX: Sr, Y, Cu, Zn;

SAMPLE LOCATION

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