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SAMPLE INFO : 93SJP56
Sample ID:93SJP56
Station ID:93SJP56
Latitude:62.41379191
Longitude:-143.1565783
Datum:NAD83
Date Sampled:1993-00-00
Sample Type 1:Lava
Field Lithology:Andesite
Text Description:
Outcrop in the saddle between the Dome F and the spatter ridge at Site 4. Phenocrysts: Fine-grained, holocrystalline , seriate to glomeroporphyritic with a matrix of mesostasis, opaque and alteration. There is a xenolith? or glomeroporphyritic clump of 2.4 mm plagioclase and 0.8-0.3 mm clinopyroxene. Plagioclase phenocrysts (An27 - An53) are up to 1.7 mm and some have sieve textured intermediate zones, complex zoning, convolute zoning and resorbed rims; a few have heavily sieve textured cores. Clinopyroxene phenocrysts are up to 0.4 mm and have altered rims. Opaque phenocrysts are up to 0.2 mm. There is one grain of green amphibole with a black corona.

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
93SJP5662.41379191-143.1565783Preece, S. J.1993-00-00 Skookum CreekNabesna B-5; T7N, R12E, S3Outcrop in the saddle between the Dome F and the spatter ridge at Site 4. Phenocrysts: Fine-grained, holocrystalline , seriate to glomeroporphyritic with a matrix of mesostasis, opaque and alteration. There is a xenolith? or glomeroporphyritic clump of 2.4 mm plagioclase and 0.8-0.3 mm clinopyroxene. Plagioclase phenocrysts (An27 - An53) are up to 1.7 mm and some have sieve textured intermediate zones, complex zoning, convolute zoning and resorbed rims; a few have heavily sieve textured cores. Clinopyroxene phenocrysts are up to 0.4 mm and have altered rims. Opaque phenocrysts are up to 0.2 mm. There is one grain of green amphibole with a black corona.93SJP56LavaWhole-rock 58.76 1 17.7 5.8 0.09 4 6.14 4.21 0.6 0.16 99.5955DCP6.335.8LOI=1.55DCP 3.4 540 658 21 158 5.9 4.1 0.8 16.7 137 72 49 43 71 18.3 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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