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SAMPLE INFO : 94SJP56
Sample ID:94SJP56
Station ID:94SJP56
Latitude:62.42823739
Longitude:-143.1307466
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
A flow with a huge massive zone above a distinct 25’ thick reddish rubble zone which pinches and thickens at Site 3. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, green alteration and calcite. Plagioclase phenocrysts (An36 - An59) are up to 1.7 mm and some have complex zoning, and a few have sieve textured cores or intermediate zones. Orthopyroxene phenocrysts are up to 0.7 mm and some have clinopyroxene rims, grains frequently contain altered patches. Clinopyroxene phenocrysts are up to 0.1 mm.

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
94SJP5662.42823739-143.1307466Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T8N, R12E, S35A flow with a huge massive zone above a distinct 25’ thick reddish rubble zone which pinches and thickens at Site 3. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, green alteration and calcite. Plagioclase phenocrysts (An36 - An59) are up to 1.7 mm and some have complex zoning, and a few have sieve textured cores or intermediate zones. Orthopyroxene phenocrysts are up to 0.7 mm and some have clinopyroxene rims, grains frequently contain altered patches. Clinopyroxene phenocrysts are up to 0.1 mm.94SJP56LavaWhole-rock 57.62 0.9 17.2 5.89 0.1 5.27 7.32 3.7 1.24 0.18 99.755DCP6.485.89LOI=0.56DCP 22.8 479 532 18 129 4.8 1.2 2.3 20.4 152 121 82 47 61 16.9 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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