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SAMPLE INFO : 93SJP64
Sample ID:93SJP64
Station ID:93SJP64
Latitude:62.3996
Longitude:-143.1371
Datum:NAD83
Date Sampled:1993-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
Approximately 25’ thick flow at Site 4. Fine-grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque and green alteration. Plagioclase phenocrysts (An40 - An57) are up to 1.55 mm and some have sieve textured intermediate zones or cores and complex zoning. Orthopyroxene phenocrysts are up to 0.6 mm and some have clinopyroxene rims. Clinopyroxene phenocrysts are sparse and ~0.2 mm in length.

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
93SJP6462.3996-143.1371Preece, S. J.1993-00-00 Skookum CreekNabesna B-5; T7N, R12E, S3Approximately 25’ thick flow at Site 4. Fine-grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque and green alteration. Plagioclase phenocrysts (An40 - An57) are up to 1.55 mm and some have sieve textured intermediate zones or cores and complex zoning. Orthopyroxene phenocrysts are up to 0.6 mm and some have clinopyroxene rims. Clinopyroxene phenocrysts are sparse and ~0.2 mm in length.93SJP64LavaWhole-rock 58.47 0.84 17.26 5.73 0.15 4.89 6.94 3.66 1.29 0.25 99.9655DCP6.325.73LOI=0.52DCP 23.4 501 533 17 128 5.2 4.7 1.6 18.6 162 78 88 49 66 16.9 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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