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SAMPLE INFO : 94SJP74A
Sample ID:94SJP74A
Station ID:94SJP74A
Latitude:62.27183221
Longitude:-143.3193496
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Andesite
Text Description:
Approximately 10 thick, sheety dike, trending N135E and cutting through 94SJP74B. The dike appears to continue to the top of South Pass. Fine grained, vesicular, hypocrystalline, intergranular, glomeroporphyritic with a matrix of pale brown glass, opaque, orthopyroxene and plagioclase. Plagioclase phenocrysts (An40 - An61) are up to 1.75 mm; the smaller grains are laths with normal zoning; the larger grains have complex oscillatory zoning, resorption embayments and sieve textured zones. Orthopyroxene phenocrysts are up to 1.5 mm and some have clinopyroxene rims, occasional sieve textured zones and/or opaque inclusions. Clinopyroxene phenocrysts are up to 0.9 mm. Olivine phenocrysts are up to 0.65 and are altered. Opaque phenocrysts are up to 0.1 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
94SJP74A62.27183221-143.3193496Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T6N, R11E, S2694SJP74ALavaWhole-rock 57.3 1.06 17.83 5.9 0.1 4.68 7.43 3.83 1.38 0.22 99.7155DCP6.55.9LOI=0.35DCP 18.9 388 685 17 133 6.1 2 2.2 18.6 147 98 56 62 58 18.1 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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