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SAMPLE INFO : 94SJP92
Sample ID:94SJP92
Station ID:94SJP92
Latitude:62.38433609
Longitude:-143.4424152
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Field Lithology:Basaltic Andesite
 Text Description:
Grab sample from rubble crop on the top of a hill with large boulders 2-4’ in diameter on the west side of Goat Creek. Fine grained, vesicular, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase, clinopyroxene and orthopyroxene. Plagioclase phenocrysts (An38 - An63) are up to 4.37 mm and occasionally have oscillatory zoning, sieve texture with large melt inclusions, and rounded edges. Olivine phenocrysts are up to 0.45 mm and often are rimmed with small orthopyroxene crystals, and occasionally have opaque inclusions. Orthopyroxene phenocrysts are up to 1.5 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
94SJP9262.38433609-143.4424152Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T7N, R11E, S18Grab sample from rubble crop on the top of a hill with large boulders 2-4’ in diameter on the west side of Goat Creek. Fine grained, vesicular, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase, clinopyroxene and orthopyroxene. Plagioclase phenocrysts (An38 - An63) are up to 4.37 mm and occasionally have oscillatory zoning, sieve texture with large melt inclusions, and rounded edges. Olivine phenocrysts are up to 0.45 mm and often are rimmed with small orthopyroxene crystals, and occasionally have opaque inclusions. Orthopyroxene phenocrysts are up to 1.5 mm.94SJP92LavaWhole-rock 56.68 1.23 18.13 6.98 0.12 3.9 7.1 4.2 1.5 0.25 100.4955DCP7.746.98LOI=-0.16DCP 31 423 524 29 221 7.4 4.3 3.3 19.7 175 33 41 55 73 19 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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