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SAMPLE INFO : 94SJP61
Sample ID:94SJP61
Station ID:94SJP61
Latitude:62.27294685
Longitude:-143.18796
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Tephra Fall
Sample Type 2:Bomb
Field Lithology:Basaltic Andesite
Text Description:
Bomb from the remnants of a cinder cone at Gutbuster. Overlies 94SJP62.Fine grained, vesicular, holocrystalline, trachytic, porphyritic with a matrix of mesostasis, opaque, and plagioclase. Plagioclase phenocrysts (An43-An55) are up to 1.0 mm and occasionally have oscillatory zoning. Olivine phenocrysts are up to 2.12 mm and occasionally have skeletal habit. Clinopyroxene phenocrysts are up to 0.35 mm and are strained with undulatory extinction and bent cleavage planes.

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
94SJP6162.27294685-143.18796Preece, S. J.1994-00-00 Skookum CreekNabesna B-5, T6N, R12E, S28Bomb from the remnants of a cinder cone at Gutbuster. Overlies 94SJP62.Fine grained, vesicular, holocrystalline, trachytic, porphyritic with a matrix of mesostasis, opaque, and plagioclase. Plagioclase phenocrysts (An43-An55) are up to 1.0 mm and occasionally have oscillatory zoning. Olivine phenocrysts are up to 2.12 mm and occasionally have skeletal habit. Clinopyroxene phenocrysts are up to 0.35 mm and are strained with undulatory extinction and bent cleavage planes.94SJP61Tephra FallCumulateWhole-rock 56.89 1.78 16.25 8.8 0.15 3.7 7.11 4.18 1.07 0.19 99.9355DCP9.78.8LOI=-0.17DCP 17.4 416 479 29 150 5.1 1.9 1.5 30 349 26 25 105 104 19.5 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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