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SAMPLE INFO : 94SJP87
Sample ID:94SJP87
Station ID:94SJP87
Latitude:62.41934783
Longitude:-143.1090796
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
 Text Description:
Massive flow from the top of the wall-like andesite outcrop that overlies silicic material from Dome A at Site 3. Fine-grained, vesicular, diktytaxitic, hypocrystalline, intersertal, intergranular, seriate porphyritic with a matrix of brown glass, mesostasis, opaque, feldspar, orthopyroxene and clinopyroxene. Plagioclase phenocrysts (An30 - An57) are up to 1.05 mm and some have sieve textured cores or intermediate zones, complex zoning, and a few have orthopyroxene inclusions. Orthopyroxene phenocrysts are up to 1.35 mm and some have clinopyroxene rims and/or feldspar inclusions. Clinopyroxene phenocrysts are up to 0.2 mm. 52.7% matrix, 35.5% plagioclase, 8.4% orthopyroxene, 3.4% 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
94SJP8762.41934783-143.1090796Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T7N, R12E, S1Massive flow from the top of the wall-like andesite outcrop that overlies silicic material from Dome A at Site 3. Fine-grained, vesicular, diktytaxitic, hypocrystalline, intersertal, intergranular, seriate porphyritic with a matrix of brown glass, mesostasis, opaque, feldspar, orthopyroxene and clinopyroxene. Plagioclase phenocrysts (An30 - An57) are up to 1.05 mm and some have sieve textured cores or intermediate zones, complex zoning, and a few have orthopyroxene inclusions. Orthopyroxene phenocrysts are up to 1.35 mm and some have clinopyroxene rims and/or feldspar inclusions. Clinopyroxene phenocrysts are up to 0.2 mm. 52.7% matrix, 35.5% plagioclase, 8.4% orthopyroxene, 3.4% vesicles.94SJP87LavaWhole-rock 58.91 0.9 17.5 5.5 0.11 3.98 7.11 3.9 1.35 0.26 100.8255DCP6.15.5LOI=0.52DCP 24.7 538 522 14.1 29.4 15.8 3.3 1.1 3 3.3 1.7 1.7 0.3 20 157 5.7 3.9 1.5 18.4 172 30 44 51 66 17.6 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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