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SAMPLE INFO : 95SJP10
Sample ID:95SJP10
Station ID:95SJP10
Latitude:62.38490081
Longitude:-143.0260225
Datum:NAD83
Date Sampled:1995-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
A platy flow, 60 - 70’ thick, directly below agglutinated material of 95SJP9A, 9B at Site 8. Fine grained, holocrystalline, intergranular, seriate porphyritic with a matrix of plagioclase, orthopyroxene, clinopyroxene and opaque. Plagioclase phenocrysts (An43 - An64) are up to 2.5 mm, both oscillatory and normal zoning is common, and there are occasional sieve textured zones. Olivine phenocrysts are up to 1.1 mm and are partially to totally altered and often rimmed by small orthopyroxene crystals. Orthopyroxene phenocrysts are up to 0.9 mm and the smaller crystals frequently have thick clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.22 mm. Opaque 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
95SJP1062.38490081-143.0260225Preece, S. J.1995-00-00 Skookum CreekNabesna B-5; T7N, R13E, S16 A platy flow, 60 - 70’ thick, directly below agglutinated material of 95SJP9A, 9B at Site 8. Fine grained, holocrystalline, intergranular, seriate porphyritic with a matrix of plagioclase, orthopyroxene, clinopyroxene and opaque. Plagioclase phenocrysts (An43 - An64) are up to 2.5 mm, both oscillatory and normal zoning is common, and there are occasional sieve textured zones. Olivine phenocrysts are up to 1.1 mm and are partially to totally altered and often rimmed by small orthopyroxene crystals. Orthopyroxene phenocrysts are up to 0.9 mm and the smaller crystals frequently have thick clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.22 mm. Opaque phenocrysts are up to 0.1 mm. 95SJP10LavaWhole-rock 57.38 1.05 18 6.57 0.11 3.99 7.38 3.97 1.1 0.3 99.8255DCP7.236.57LOI=0.21DCP 21.5 447 545 21 125 4.3 2.2 1.9 21.2 195 23 37 33 63 18.5 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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