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SAMPLE INFO : 94SJP11B
Sample ID:94SJP11B
Station ID:94SJP11B
Latitude:62.28850246
Longitude:-143.267
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Block
Field Lithology:Basaltic Andesite
Text Description:
Block from brecciated material at Site 12. This unit is cut by a dike (94SJP11A). Fine grained, vesicular, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, orthopyroxene, clinopyroxene and minor calcite. Plagioclase phenocrysts (An30-An64) are up to 7.5 mm and frequently have sieve textured cores, normal zoning, and overgrowth rims; oscillatory zoning is less common. Olivine phenocrysts are up to 0.5 mm and some have a rim of small orthopyroxene crystals. Orthopyroxene is up to 0.6 mm and some have clinopyroxene rims.

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
94SJP11B62.28850246-143.267Preece, S. J.1994-00-00 Skookum CreekNabesna B-5, T6N, R12E, S19Block from brecciated material at Site 12. This unit is cut by a dike (94SJP11A). Fine grained, vesicular, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, orthopyroxene, clinopyroxene and minor calcite. Plagioclase phenocrysts (An30-An64) are up to 7.5 mm and frequently have sieve textured cores, normal zoning, and overgrowth rims; oscillatory zoning is less common. Olivine phenocrysts are up to 0.5 mm and some have a rim of small orthopyroxene crystals. Orthopyroxene is up to 0.6 mm and some have clinopyroxene rims.94SJP11BLavaWhole-rock 56 0.76 18.95 6.19 0.1 4.63 8.06 3.6 0.96 0.24 99.7855DCP6.816.19LOI=0.47DCP 16.9 347 656 13 69 2.5 2.2< 0.5 18.4 165 71 62 64 62 18.7 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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