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SAMPLE INFO : 94SJP101C
Sample ID:94SJP101C
Station ID:94SJP101C
Latitude:62.35628735
Longitude:-143.198241
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
Sample is from a flow package at Site 13 underlying Dome G. The package is composed of rubbly and highly vesicular flows with ~5’ thick massive zones. The flow package is about 150’ thick and is cut by 94SJP101A and 94SJP101B. The sample is from the base of the flow package. Fine grained, vesicular, holocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An40 - An60) are up to 3.12 mm and occasionally have rounded or resorbed rims, and usually have normal zoning; oscillatory zoning is less common. Orthopyroxene phenocrysts are up to 1.05 mm and occasionally have clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.4 mm. An altered phase, olivine?, is present.

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
94SJP101C62.35628735-143.198241Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T7N, R12E, S28Sample is from a flow package at Site 13 underlying Dome G. The package is composed of rubbly and highly vesicular flows with ~5’ thick massive zones. The flow package is about 150’ thick and is cut by 94SJP101A and 94SJP101B. The sample is from the base of the flow package. Fine grained, vesicular, holocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An40 - An60) are up to 3.12 mm and occasionally have rounded or resorbed rims, and usually have normal zoning; oscillatory zoning is less common. Orthopyroxene phenocrysts are up to 1.05 mm and occasionally have clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.4 mm. An altered phase, olivine?, is present.94SJP101CLavaWhole-rock 57.18 1.18 17.5 6.5 0.12 3.82 7.61 3.87 1.33 0.24 100.755DCP7.226.5LOI=0.63DCP 21.8 443 475 25 164 4.3 4.4 1 21.5 185 68 36 60 63 17.8 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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