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Sample ID:94SJP25
Station ID:94SJP25
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Andesite
Text Description:
A 4 thick, locally platy dike, trending N30E that intrudes silicic material from Dome A at Site 5. Fine-grained, hypocrystalline, intersertal, intergranular, seriate to glomeroporphyritic with a matrix of pale brown glass, mesostasis, opaque, plagioclase, clinopyroxene, orthopyroxene and yellow alteration. Plagioclase phenocrysts (An19 - An46, most An34 - An46) are up to 2.5 mm and some have strong complex zoning with prussian blue extinction; a few have convolute zoning and/or resorption embayments. Orthopyroxene phenocrysts are up to 2.5 mm and some have altered melt inclusions, clinopyroxene rims and/or opaque inclusions.

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
94SJP2562.44-143.1263032Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T8N, R12E, S2694SJP25LavaWhole-rock 58.79 1.03 18.16 5.6 0.12 3.18 6.43 4.12 1.54 0.29 100.3455DCP6.225.6LOI=0.72DCP 27 583 567 22 155 4.7 3.5 1.8 18.3 168 6 16 48 67 18.6 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;


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