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Sample ID:94SJP21
Station ID:94SJP21
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
Approximately 25 thick,, plagioclase-phyric flow at Site 12. Fine grained, vesicular, hypocrystalline, intersertal, weakly intergranular, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, clinopyroxene and orthopyroxene. Plagioclase phenocrysts (An38 - An58) are up to 7.75 mm and often have sieve textured rims, pyroxene inclusions and complex zoning. Orthopyroxene phenocrysts are up to 2.0 mm and some have clinopyroxene rims (mainly on smaller grains); there are occasional sieve textured rims. Clinopyroxene phenocrysts are up to 0.7 mm and the largest grains have orthopyroxene cores. Olivine? phenocrysts are surrounded by small orthopyroxene crystals. 63.1% matrix, 26.7% plagioclase, 0.2% orthopyroxene, 5.7% altered phase, 0.2% 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
94SJP2162.2818358-143.2487934Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T6N, R12E, S1994SJP21LavaWhole-rock 58.4 0.83 17.7 5.83 0.1 4.35 7.3 3.9 1.26 0.15 99.6855DCP6.415.83LOI=0.27DCP 25.1 473 524 14.6 34.2 15.7 3.5 1.1 3.9 3.3 1.9 1.8 0.3 20 139 5 4.4 1.1 19.5 155 59 65 59 59 17.9 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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