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SAMPLE INFO : 94SJP62
Sample ID:94SJP62
Station ID:94SJP62
Latitude:62.27294685
Longitude:-143.18796
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Basaltic Andesite
Text Description:
Approximately 30' thick flow underneath welded spatter at Gutbuster. There are least 3 flows in this package. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of mesostasis, opaque, and plagioclase. Plagioclase phenocrysts (An46-An54) are up to 1.9 mm. Orthopyroxene phenocrysts are up to 0.45 mm and occasionally have opaque inclusions. Clinopyroxene phenocrysts are up to 0.25 mm; the crystals are strained and have undulatory extinction and bent cleavage planes. Olivine phenocrysts are up to 0.3 mm and are often skeletal. Mode: 77.7% matrix, 8.0% plagioclase, 0.2% clinopyroxene, 0.4% orthopyroxene, 13.7% vesicles.

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
94SJP6262.27294685-143.18796Preece, S. J.1994-00-00 Skookum CreekNabesna B-5, T6N, R12E, S28Approximately 30' thick flow underneath welded spatter at Gutbuster. There are least 3 flows in this package. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of mesostasis, opaque, and plagioclase. Plagioclase phenocrysts (An46-An54) are up to 1.9 mm. Orthopyroxene phenocrysts are up to 0.45 mm and occasionally have opaque inclusions. Clinopyroxene phenocrysts are up to 0.25 mm; the crystals are strained and have undulatory extinction and bent cleavage planes. Olivine phenocrysts are up to 0.3 mm and are often skeletal. Mode: 77.7% matrix, 8.0% plagioclase, 0.2% clinopyroxene, 0.4% orthopyroxene, 13.7% vesicles.94SJP62LavaWhole-rock 56.32 1.79 16.18 8.98 0.15 3.85 7.2 4.27 1.13 0.45 100.0355DCP9.888.98LOI=-0.32DCP 18.7 410 482 28 152 5.1 3.6 2.6 31.4 328 30 19 117 86 19.8 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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