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SAMPLE INFO : 93SJP46
Sample ID:93SJP46
Station ID:93SJP46
Latitude:62.47935156
Longitude:-143.0713068
Datum:NAD83
Date Sampled:1993-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Basaltic Andesite
Text Description:
Approximately 15' thick flow from the top of the bottom andesite package at Site 1 in the Boyden Hills. Fine-grained, holocrystalline, intergranular, seriate to glomeroporphyritic with a matrix of mesostasis, plagioclase, clinopyroxene, opaque, and alteration. Plagioclase phenocrysts (An46-An65) are up to 1.2 mm; some have sieve textured cores; most have normal zoning with occasional oscillatory zoning, and occasionally include clinopyroxene. Orthopyroxene phenocrysts are up to 1.5 mm with rare clinopyroxene rims. Clinopyroxene phenocrysts are up to 1.25 mm. Mode: 52.5% matrix, 33.9% plagioclase, 1.5% clinopyroxene, 0.7% orthopyroxene, 6.3% alteration, 5.1% vesicles.

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
93SJP4662.47935156-143.0713068Preece, S. J.1993-00-00 Skookum CreekNabesna B-5, T8N, R13E, S18Approximately 15' thick flow from the top of the bottom andesite package at Site 1 in the Boyden Hills. Fine-grained, holocrystalline, intergranular, seriate to glomeroporphyritic with a matrix of mesostasis, plagioclase, clinopyroxene, opaque, and alteration. Plagioclase phenocrysts (An46-An65) are up to 1.2 mm; some have sieve textured cores; most have normal zoning with occasional oscillatory zoning, and occasionally include clinopyroxene. Orthopyroxene phenocrysts are up to 1.5 mm with rare clinopyroxene rims. Clinopyroxene phenocrysts are up to 1.25 mm. Mode: 52.5% matrix, 33.9% plagioclase, 1.5% clinopyroxene, 0.7% orthopyroxene, 6.3% alteration, 5.1% vesicles.93SJP46LavaWhole-rock 56.06 0.83 18.54 6.21 0.11 3.95 8.54 3.6 1.2 0.08 99.6155DCP6.826.21LOI=0.82DCP 23.8 427 638 16 90 2.7 3.7 0.9 20.9 168 46 90 69 66 17.8 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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