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SAMPLE INFO : 93SJP33
Sample ID:93SJP33
Station ID:93SJP33
Latitude:62.43
Longitude:-143.0951917
Datum:NAD83
Date Sampled:1993-00-00
Sample Type 1:Lava
Sample Type 2:Dome
Field Lithology:Rhyolite
Text Description:
Blocky, rubbly outcrop from the summit of Dome A at Site 2. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of equigranular feldspar, quartz?, opaque, zircon and altered patches. Plagioclase phenocrysts are up to 2.0 mm. Symplectic intergrowths of feldspar and quartz are up to 0.15 mm. Opaque phenocrysts are up to 0.4 mm. Zircon phenocrysts are up to 0.2 mm. An altered phase up to 0.95 mm, amphibole? or biotite?, 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
93SJP3362.43-143.0951917Preece, S. J.1993-00-00 Skookum CreekNabesna B-5; T8N, R12E, S36Blocky, rubbly outcrop from the summit of Dome A at Site 2. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of equigranular feldspar, quartz?, opaque, zircon and altered patches. Plagioclase phenocrysts are up to 2.0 mm. Symplectic intergrowths of feldspar and quartz are up to 0.15 mm. Opaque phenocrysts are up to 0.4 mm. Zircon phenocrysts are up to 0.2 mm. An altered phase up to 0.95 mm, amphibole? or biotite?, is present.93SJP33LavaWhole-rock 74.79 0.08 14.41 1.3 0.07 0.1 1.03 4.86 3.05 0.04 99.6155DCP1.431.3LOI=0.29DCP 52 944 160 16 110 8.7 5.4 3 1.7 1bdl bdl 1 50 15.3 55XRF: Rb, Zr, Nb, Th, U, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cu, Zn;

SAMPLE LOCATION

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