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Sample ID:94SJP14
Station ID:94SJP14
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Andesite
Text Description:
Vertical sheeted dike trending N55E cutting up through the brecciated unit (sBA9) at Site 12. Fine grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An30 - An57) are up to 1.7 mm and some have oscillatory zoning; normal zoning is more common. Orthopyroxene phenocrysts are up to 1.1 mm and commonly have clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.08 mm. 57.8% matrix, 35.8% plagioclase, 6.3% orthopyroxene, 0.1% vesicles.

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
94SJP1462.29128056-143.2654606Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T6N, R12E, S1994SJP14LavaWhole-rock 60.31 0.66 16.77 5.3 0.09 4.91 6.72 3.66 1.29 0.12 99.2355DCP5.85.3LOI=0.2DCP 25.6 519 553 14 114 4.1 3 2.5 18.1 140 137 101 51 61 17 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;


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