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SAMPLE INFO : P49Se14
Sample ID:P49Se14
Station ID:P49Se14
Latitude:51.98605
Longitude:179.60313
Datum:NAD83
Date Sampled:1947-05-01
Sample Type 1:Lava
Sample Type 2:Flow
Text Description:
From a flow, apparently derived from Anvil Peak, that predates the eruption of the dacitic tuff, according to Powers. This is a medium-brownish-gray (5YR 5/1) porphyritic, slightly vesicular basaltic andesite. The phenocrysts (3 mm in size) include bytownite (An82), olivine (Fa15), and sparse augite that is green in hand specimen. The groundmass is an hyalopilitic web of plagioclase microlites, augite, and magnetite.

References:
Geologic reconnaissance of Semisopochnoi Island, western Aleutian Islands, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedVolcanoLocation DescriptionText DescriptionSample IDSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
P49Se14 51.98605 179.60313 Powers, H. A. 1947-05-01 Anvil Peak(117,375 E., 10,750 N.)From a flow, apparently derived from Anvil Peak, that predates the eruption of the dacitic tuff, according to Powers. This is a medium-brownish-gray (5YR 5/1) porphyritic, slightly vesicular basaltic andesite. The phenocrysts (3 mm in size) include bytownite (An82), olivine (Fa15), and sparse augite that is green in hand specimen. The groundmass is an hyalopilitic web of plagioclase microlites, augite, and magnetite.P49Se14 53.485395439901 0.90211499055305 18.433216306967 8.5255399579205 0.18042299811061 4.42036345371 9.0211499055305 3.2275669662009 1.182772987614 0.22051699769075 99.99368NN2.246.49H2OP=0.34; H2OM=0.06; CO2=0NN 22.8 450 14.6 745XRFB V=0.002, M=SPEC, R=368;K V=0.98, M=NN, R=745;Zr V=0.002, M=SPEC, R=368;Co V=25.6, M=XRF, R=201;
P49Se14 51.98605 179.60313 Powers, H. A. 1947-05-01 Anvil Peak(117,375 E., 10,750 N.)From a flow, apparently derived from Anvil Peak, that predates the eruption of the dacitic tuff, according to Powers. This is a medium-brownish-gray (5YR 5/1) porphyritic, slightly vesicular basaltic andesite. The phenocrysts (3 mm in size) include bytownite (An82), olivine (Fa15), and sparse augite that is green in hand specimen. The groundmass is an hyalopilitic web of plagioclase microlites, augite, and magnetite.P49Se14 H2OP=0.34; H2OM=0.06; CO2=0NN 21.4 89.6 242 27.8 785 334 201XRFSr V=0.07, M=SPEC, R=368;Ba V=0.06, M=SPEC, R=368;Cu V=0.01, M=SPEC, R=368;Co V=0.003, M=SPEC, R=368;Ni V=0.002, M=SPEC, R=368;Ga V=0.003, M=SPEC, R=368;Cr V=0.004, M=SPEC, R=368;V V=0.02, M=SPEC, R=368;Sc V=0.005, M=SPEC, R=368;

SAMPLE LOCATION

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Page modified: July 14, 2014 13:37
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