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SAMPLE INFO : 94SJP97
Sample ID:94SJP97
Station ID:94SJP97
Latitude:62.32238575
Longitude:-143.4463014
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Rhyolite
 Text Description:
Sample is from a polygonal jointed feeder dike on the west side of Goat Creek. The entire ridge is full of these dikes all running subparallel to each other. Fine grained, hypocrystalline, porphyritic with a matrix of pale brown glass, plagioclase, microlites, opaque and orthopyroxene. Plagioclase phenocrysts are up to 3.37 mm, but most are smaller laths; the largest grains are rounded. Orthopyroxene phenocrysts are up to 1.0 mm. Clinopyroxene phenocrysts are up to 0.2 mm. Opaque phenocrysts are up to 0.35 mm.

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
94SJP9762.32238575-143.4463014Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T6N, R11E, S7Sample is from a polygonal jointed feeder dike on the west side of Goat Creek. The entire ridge is full of these dikes all running subparallel to each other. Fine grained, hypocrystalline, porphyritic with a matrix of pale brown glass, plagioclase, microlites, opaque and orthopyroxene. Plagioclase phenocrysts are up to 3.37 mm, but most are smaller laths; the largest grains are rounded. Orthopyroxene phenocrysts are up to 1.0 mm. Clinopyroxene phenocrysts are up to 0.2 mm. Opaque phenocrysts are up to 0.35 mm.94SJP97LavaWhole-rock 67.6 0.68 14.96 3.15 0.12 0.71 1.72 5.72 3.02 0.2 100.0955DCP3.493.15LOI=2.12DCP 52 853 206 39.4 91.2 43 9 2.2 9.3 9.3 5.6 5.7 0.9 55 518 16.9 8.2 3.3 11.3 10 1 1 3 83 19.3 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, Cr, Cu, Zn;

SAMPLE LOCATION

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