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SAMPLE INFO : 93SJP16
Sample ID:93SJP16
Station ID:93SJP16
Latitude:62.41406961
Longitude:-143.0890794
Datum:NAD83
Date Sampled:1993-00-00
Sample Type 1:Lava
Sample Type 2:Dome
Field Lithology:Rhyolite
Text Description:
Weathered and fractured outcrop of Dome C at Finger Creek. Fine-grained, holocrystalline, pilotaxitic, seriate to porphyritic with a matrix of feldspar, opaque, alteration, and biotite? or amphibole?. Plagioclase phenocrysts (An52) are up to 2.5 mm and commonly zoned. Orthopyroxene phenocrysts up to 0.2 mm. Opaque phenocrysts up to 0.25 mm. Altered phase is present that consists of calcite, feldspar, and opaque.

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
93SJP1662.41406961-143.0890794Preece, S. J.1993-00-00 Skookum CreekNabesna B-5; T7N, R12E, S1Weathered and fractured outcrop of Dome C at Finger Creek. Fine-grained, holocrystalline, pilotaxitic, seriate to porphyritic with a matrix of feldspar, opaque, alteration, and biotite? or amphibole?. Plagioclase phenocrysts (An52) are up to 2.5 mm and commonly zoned. Orthopyroxene phenocrysts up to 0.2 mm. Opaque phenocrysts up to 0.25 mm. Altered phase is present that consists of calcite, feldspar, and opaque.93SJP16LavaWhole-rock 69.21 0.29 16.34 2.4 0.14 0.35 2.41 5.46 2.33 0.05 100.1655DCP2.672.4LOI=1.02DCP 39 810 347 18 289 8.4 2.7 1.9 2.2 2bdl 2 3 61 16.8 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cu, Zn;

SAMPLE LOCATION

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