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SAMPLE INFO : 94SJP78
Sample ID:94SJP78
Station ID:94SJP78
Latitude:62.27544382
Longitude:-143.3151831
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Basaltic Andesite
Text Description:
At least a 20' thick flow. Lowest sample from South Pass. Fine grained, vesicular, hypocrystalline, intersertal, intergranular, seriate porphyritic with a matrix of brown glass, opaque, clinopyroxene, plagioclase, and orthopyroxene?. Plagioclase phenocrysts (An43-An59) are up to 1.25 mm and occasionally have sieve textured zones or oscillatory zoning. Orthopyroxene phenocrysts are up to 1.0 mm, 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
94SJP7862.27544382-143.3151831Preece, S. J.1994-00-00 Skookum CreekNabesna B-5, T6N, R11E, S26At least a 20' thick flow. Lowest sample from South Pass. Fine grained, vesicular, hypocrystalline, intersertal, intergranular, seriate porphyritic with a matrix of brown glass, opaque, clinopyroxene, plagioclase, and orthopyroxene?. Plagioclase phenocrysts (An43-An59) are up to 1.25 mm and occasionally have sieve textured zones or oscillatory zoning. Orthopyroxene phenocrysts are up to 1.0 mm, some have clinopyroxene rims.94SJP78LavaWhole-rock 56.78 1.1 17.7 6.65 0.11 4.29 7.39 3.83 1.29 0.21 99.6455DCP7.316.65LOI=0.61DCP 20.7 467 619 20 131 5.4 1.3< 0.5 19.7 178 43 39 60 69 18.4 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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