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SAMPLE INFO : 94SJP72
Sample ID:94SJP72
Station ID:94SJP72
Latitude:62.40434679
Longitude:-143.0993564
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Field Lithology:Basaltic Andesite
Text Description:
Highest point on the wall-like capping andesite at Site 7. Fine grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene and alteration. Plagioclase phenocrysts (An37-An61) are up to 0.75 mm and some display sieve textured zones, oscillatory zoning, or have pyroxene inclusions. Orthopyroxene phenocrysts are up to 0.9 mm and frequently have clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.4 mm. An altered phase, up to 0.25 mm, is present. Mode: 39.9% matrix, 47.2% plagioclase, 1.6% clinopyroxene, 4.9% orthopyroxene, 5.8% alteration, 0.6% 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
94SJP7262.40434679-143.0993564Preece, S. J.1994-00-00 Skookum CreekNabesna B-5, T7N, R12E, S12Highest point on the wall-like capping andesite at Site 7. Fine grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene and alteration. Plagioclase phenocrysts (An37-An61) are up to 0.75 mm and some display sieve textured zones, oscillatory zoning, or have pyroxene inclusions. Orthopyroxene phenocrysts are up to 0.9 mm and frequently have clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.4 mm. An altered phase, up to 0.25 mm, is present. Mode: 39.9% matrix, 47.2% plagioclase, 1.6% clinopyroxene, 4.9% orthopyroxene, 5.8% alteration, 0.6% vesicles.94SJP72LavaWhole-rock 56.7 0.82 18.37 5.8 0.11 4.51 7.83 3.47 1.54 0.06 100.0355DCP6.455.8LOI=0.75DCP 25 481 711 17 105 3 4.7 0.7 21.7 165 29 46 70 63 18.2 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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