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Sample ID:93SJP65
Station ID:93SJP65
Date Sampled:1993-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
A 10-20 thick flow that is the top exposure in unit nA1 at Site 4. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque and greenish alteration. Plagioclase phenocrysts (An39 - An58) are up to 2.1 mm and display sieve textured cores and intermediate zones, complex zoning, and rarely convolute zoning. Orthopyroxene phenocrysts are up to 1.1 mm and have clinopyroxene rims and rarely have opaque inclusions. 52.9% matrix, 32.4% plagioclase, 0.3% clinopyroxene, 7.5% orthopyroxene, 6.9% alteration.

Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex

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
93SJP6562.41768105-143.1651896Preece, S. J.1993-00-00 Skookum CreekNabesna B-5; T7N, R12E, S393SJP65LavaWhole-rock 57.64 0.89 17.4 5.86 0.12 4.83 7.6 3.58 1.04 0.11 98.6555DCP6.385.86LOI=0.97DCP 24.1 525 577 13.5 29.2 13.8 3 1 3.3 2.9 1.6 1.6 0.2 18 124 4.9 2.4 0.6 17.6 152 69 88 45 63 17.3 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc, V; MX: Sr, Y, Cr, Cu, Zn;


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