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SAMPLE INFO : 94SJP33
Sample ID:94SJP33
Station ID:94SJP33
Latitude:62.42629281
Longitude:-143.1238022
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
A 15-20’ thick flow with thick rubble zones and a 5-10’ thick massive zone at Site 3. Fine-grained, vesicular, weakly diktytaxitic, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene, plagioclase, orthopyroxene?, yellow alteration and calcite. Plagioclase phenocrysts (An35 - An57) are up to 1.2 mm and a few of the larger grains have sieve textured intermediate zones, some have complex zoning, and rarely have resorbed rims or orthopyroxene inclusions. Orthopyroxene phenocrysts are up to 0.65 mm, and display thin clinopyroxene rims, and sparse opaque inclusions. Clinopyroxene phenocrysts are up to 0.15 mm. Opaque phenocrysts are up to 0.7 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
94SJP3362.42629281-143.1238022Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T8N, R12E, S3A 15-20’ thick flow with thick rubble zones and a 5-10’ thick massive zone at Site 3. Fine-grained, vesicular, weakly diktytaxitic, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene, plagioclase, orthopyroxene?, yellow alteration and calcite. Plagioclase phenocrysts (An35 - An57) are up to 1.2 mm and a few of the larger grains have sieve textured intermediate zones, some have complex zoning, and rarely have resorbed rims or orthopyroxene inclusions. Orthopyroxene phenocrysts are up to 0.65 mm, and display thin clinopyroxene rims, and sparse opaque inclusions. Clinopyroxene phenocrysts are up to 0.15 mm. Opaque phenocrysts are up to 0.7 mm.94SJP33LavaWhole-rock 57.1 0.87 17.2 5.8 0.11 5.06 7.49 3.6 1.22 0.22 99.8555DCP6.395.8LOI=1.34DCP 23.9 480 539 17 122 5.2 3.1 1.9 19.1 156 101 72 50 62 17.1 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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