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SAMPLE INFO : 94SJP48
Sample ID:94SJP48
Station ID:94SJP48
Latitude:62.41823664
Longitude:-143.1074129
Datum:NAD83
Date Sampled:1994-00-00
Sample Type 1:Lava
Sample Type 2:Block
Field Lithology:Basaltic Andesite
 Text Description:
Block from an about 36' thick block and ash flow at Site 3. Fine-grained, seriate to porphyritic, intersertal, intergranular, hypocrystalline with a matrix of brown glass, opaque, clinopyroxene, feldspar and a little greenish alteration. Plagioclase phenocrysts (An45-An53) are up to 2.05 mm and have complex and convolute zoning; some grains have been resorbed and then overgrown, while others have resorption embayments; a second population is 0.2-0.5 mm, lath shaped and lack zonation. Clinopyroxene phenocrysts are up to 0.15 mm. A entirely altered phase, olivine?, is 0.1-0.6 mm. Mode: 85.9% matrix, 12.4% plagioclase, 1.6% altered phase, 0.1% 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
94SJP4862.41823664-143.1074129Preece, S. J.1994-00-00 Skookum CreekNabesna B-5, T7N, R12E, S1Block from an about 36' thick block and ash flow at Site 3. Fine-grained, seriate to porphyritic, intersertal, intergranular, hypocrystalline with a matrix of brown glass, opaque, clinopyroxene, feldspar and a little greenish alteration. Plagioclase phenocrysts (An45-An53) are up to 2.05 mm and have complex and convolute zoning; some grains have been resorbed and then overgrown, while others have resorption embayments; a second population is 0.2-0.5 mm, lath shaped and lack zonation. Clinopyroxene phenocrysts are up to 0.15 mm. A entirely altered phase, olivine?, is 0.1-0.6 mm. Mode: 85.9% matrix, 12.4% plagioclase, 1.6% altered phase, 0.1% vesicles.94SJP48LavaWhole-rock 56.04 1.33 17.51 7.38 0.17 3.69 7.33 4 1.4 0.3 99.9355DCP8.137.38LOI=0.76DCP 19.6 449 540 26 183 6.5 2.8 1.2 21.1 207 14 21 46 83 18.8 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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