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SAMPLE INFO : 94SJP18
Sample ID:94SJP18
Station ID:94SJP18
Latitude:62.29266982
Longitude:-143.2590716
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Basaltic Andesite
Text Description:
Subvertical, 10-12' thick dike trending N70E that cuts through the brecciated material unit (unit sBA9) at Site 12. Fine grained, vesicular, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase, clinopyroxene and olivine?. Plagioclase phenocrysts (An32-An62) are up to 3.75 mm and often display strong oscillatory zoning, normal zoning is also observed, some sieve textured zones are present. Orthopyroxene phenocrysts are up to 2.0 mm and some have clinopyroxene rims. Olivine phenocrysts are up to 1.4 mm and some are altered. Clinopyroxene phenocrysts are up to 1.9 mm.

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

GEOCHEM DATA
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
94SJP1862.29266982-143.2590716Preece, S. J.1994-00-00 Skookum CreekNabesna B-5, T6N, R12E, S19Subvertical, 10-12' thick dike trending N70E that cuts through the brecciated material unit (unit sBA9) at Site 12. Fine grained, vesicular, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase, clinopyroxene and olivine?. Plagioclase phenocrysts (An32-An62) are up to 3.75 mm and often display strong oscillatory zoning, normal zoning is also observed, some sieve textured zones are present. Orthopyroxene phenocrysts are up to 2.0 mm and some have clinopyroxene rims. Olivine phenocrysts are up to 1.4 mm and some are altered. Clinopyroxene phenocrysts are up to 1.9 mm.94SJP18LavaWhole-rock 55.85 0.98 18.33 6.62 0.12 4.65 7.89 3.68 1.1 0.32 99.3555DCP7.266.62LOI=0.42DCP 16.9 334 641 18 114 6.2 3 2.2 20.6 175 79 51 64 60 18.2 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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