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Sample ID:94SJP85B
Station ID:94SJP85B
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Andesite
Text Description:
Platy dike trending N30E. Fine grained, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, clinopyroxene and minor alteration patches. Plagioclase phenocrysts (An44 - An59) are up to 2.33 mm and often have sieve textured cores with overgrowth rims; both normal and oscillatory zoning are common; altered inclusions are common; occasionally grains have overgrowth rims over rounded cores or resorption embayments. Orthopyroxene phenocrysts are up to 2.2 mm and occasionally have clinopyroxene rims or opaque inclusions. Clinopyroxene phenocrysts are up to 0.75 mm and occasionally have opaque inclusions. Opaque phenocrysts up to 0.4 mm. An altered phase, olivine?, is present. A second altered phase, unidentifiable, now is opaque with a rim of very fine pyroxene.

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
94SJP85B62.38351194-143.1749094Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T7N, R12E, S1594SJP85BLavaWhole-rock 57.92 1.3 17.14 6.73 0.13 3.43 6.62 4.28 1.24 0.27 100.1455DCP7.436.73LOI=0.95DCP 20.7 454 524 24 175 6.2 2 2.2 19.4 165 37 21 34 71 18.3 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;


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