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SAMPLE INFO : 94SJP57
Sample ID:94SJP57
Station ID:94SJP57
Latitude:62.42934858
Longitude:-143.1301912
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
 Text Description:
At least 30’ thick flow at the base of unit nA1 at Site 3. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, alteration and calcite. Plagioclase phenocrysts (An 29 - An59) are up to 1.2 mm and display complex zoning. Orthopyroxene phenocrysts are up to 1.1 mm and some have clinopyroxene rims, sieve textured zones, and a few have resorbed rims. Clinopyroxene phenocrysts are up to 0.1 mm. 47.3% matrix, 39.7% plagioclase, 0.2% clinopyroxene, 9.5% orthopyroxene, 0.9% alteration, 2.4% 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
94SJP5762.42934858-143.1301912Preece, S. J.1994-00-00 Skookum CreekNabesna B-5; T8N, R12E, S35At least 30’ thick flow at the base of unit nA1 at Site 3. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, alteration and calcite. Plagioclase phenocrysts (An 29 - An59) are up to 1.2 mm and display complex zoning. Orthopyroxene phenocrysts are up to 1.1 mm and some have clinopyroxene rims, sieve textured zones, and a few have resorbed rims. Clinopyroxene phenocrysts are up to 0.1 mm. 47.3% matrix, 39.7% plagioclase, 0.2% clinopyroxene, 9.5% orthopyroxene, 0.9% alteration, 2.4% vesicles.94SJP57LavaWhole-rock 57.01 0.93 17.35 5.6 0.16 5.03 7.65 3.68 1.18 0.13 99.8555DCP6.225.6LOI=1.22DCP 22.1 534 543 13.1 28.8 14.1 2.9 1.1 2.7 2.8 1.6 1.6 0.2 19 131 4.7 3 1.6 20.3 169 130 66 50 60 17.3 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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