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SAMPLE INFO : 94SJP99A
Sample ID:94SJP99A
Station ID:94SJP99A
Latitude:62.29988115
Longitude:-143.4860247
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Field Lithology:Andesite
Text Description:
Downdropped block from surrounding cliffs at Tanada Peak volcano. Fine grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, alteration, opaque, plagioclase, clinopyroxene and orthopyroxene. Plagioclase phenocrysts (An38 - An61) are up to 1.75 mm and commonly have sieve textured zones, oscillatory zoning, and resorbed edges. Orthopyroxene phenocrysts are up to 1.3 mm. Olivine? phenocrysts are now altered and may be surrounded by small pyroxene crystals. Clinopyroxene phenocrysts are up to 0.32 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
94SJP99A62.29988115-143.4860247Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T6N, R10E, S13Downdropped block from surrounding cliffs at Tanada Peak volcano. Fine grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, alteration, opaque, plagioclase, clinopyroxene and orthopyroxene. Plagioclase phenocrysts (An38 - An61) are up to 1.75 mm and commonly have sieve textured zones, oscillatory zoning, and resorbed edges. Orthopyroxene phenocrysts are up to 1.3 mm. Olivine? phenocrysts are now altered and may be surrounded by small pyroxene crystals. Clinopyroxene phenocrysts are up to 0.32 mm.94SJP99ALavaWhole-rock 57.38 0.79 17.64 5.6 0.12 5.4 7.72 3.56 0.94 0.3 100.4455DCP6.25.6LOI=0.53DCP 16.2 460 566 17 103 3.6 4.2 1.8 19.7 156 140 104 63 62 17.3 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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