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SAMPLE INFO : 93SJP48
Sample ID:93SJP48
Station ID:93SJP48
Latitude:62.48046273
Longitude:-143.0701958
Datum:NAD83
Date Sampled:1993-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Basaltic Andesite
Text Description:
Approximately 10' thick flow. Lowest flow in the bottom andesite package at Site 1 in the Boyden Hills. Fine grained, vesicular, diktytaxitic, hypocrystalline, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, clinopyroxene and alteration. Plagioclase phenocrysts (An38-An63) are up to 1.75 mm and commonly have sieve textured cores, overgrowth rims, and normal zoning; occasionally have oscillatory zoning and may be strongly resorbed with irregular shape. Clinopyroxene phenocrysts are up 2.2 mm and occasionally have orthopyroxene cores. Olivine phenocrysts are up to 1.0 mm and occasionally have minor alteration along the rim. Orthopyroxene phenocrysts are up to 1.4 mm and display 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
93SJP4862.48046273-143.0701958Preece, S. J.1993-00-00 Skookum CreekNabesna B-5, T8N, R13E, S18Approximately 10' thick flow. Lowest flow in the bottom andesite package at Site 1 in the Boyden Hills. Fine grained, vesicular, diktytaxitic, hypocrystalline, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, clinopyroxene and alteration. Plagioclase phenocrysts (An38-An63) are up to 1.75 mm and commonly have sieve textured cores, overgrowth rims, and normal zoning; occasionally have oscillatory zoning and may be strongly resorbed with irregular shape. Clinopyroxene phenocrysts are up 2.2 mm and occasionally have orthopyroxene cores. Olivine phenocrysts are up to 1.0 mm and occasionally have minor alteration along the rim. Orthopyroxene phenocrysts are up to 1.4 mm and display clinopyroxene rims.93SJP48LavaWhole-rock 55.6 0.95 17.23 6.4 0.12 5.26 8.73 3.42 1.38 0.07 99.7955DCP7.056.4LOI=0.82DCP 23.1 444 640 19 118 3.7 3.1 1.4 23.1 189 127 68 80 64 18.2 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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