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SAMPLE INFO : 94SJP20
Sample ID:94SJP20
Station ID:94SJP20
Latitude:62.28989171
Longitude:-143.261016
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Basaltic Andesite
Text Description:
Flow from the top brecciated unit at Site 12. Fine grained, vesicular, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of mesostasis, brown glass, opaque, microlites, orthopyroxene, and plagioclase. Plagioclase phenocrysts (An31-An63) are up to 3.25 mm, may have sieve textured cores or occasionally rims, and normal or oscillatory zoning. Olivine phenocrysts are up to 2.05 mm, although most are <0.4 mm, some have small orthopyroxene crystals surrounding the olivine. Orthopyroxene is up to 0.7 mm and some display clinopyroxene rims. Mode: 59.0% matrix, 33.2% plagioclase, 0.1% olivine, 0.5% clinopyroxene, 6.6% orthopyroxene.

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
94SJP2062.28989171-143.261016Preece, S. J.1994-00-00 Skookum CreekNabesna B-5, T6N, R12E, S19Flow from the top brecciated unit at Site 12. Fine grained, vesicular, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of mesostasis, brown glass, opaque, microlites, orthopyroxene, and plagioclase. Plagioclase phenocrysts (An31-An63) are up to 3.25 mm, may have sieve textured cores or occasionally rims, and normal or oscillatory zoning. Olivine phenocrysts are up to 2.05 mm, although most are <0.4 mm, some have small orthopyroxene crystals surrounding the olivine. Orthopyroxene is up to 0.7 mm and some display clinopyroxene rims. Mode: 59.0% matrix, 33.2% plagioclase, 0.1% olivine, 0.5% clinopyroxene, 6.6% orthopyroxene.94SJP20LavaWhole-rock 55.4 0.9 19.04 6.6 0.11 4.73 8.11 3.74 0.95 0.18 99.8255DCP7.26.6LOI=0.3DCP 16.3 358 653 12.4 28.6 12.8 2.6 0.9 2.6 2.1 1.3 1.2 0.2 14 83 3.6 1.6 1.2 19.2 186 78 60 73 64 18.3 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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