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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
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
P49Se1451.98605179.60313Powers, 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.P49Se14Whole Rock 53.48 0.9 18.43 8.53 0.18 4.42 9 3.23 1.18 0.22 99.99368NN2.246.49H2OP=0.34; H2OM=0.06; CO2=0NN 22.8 450 14.6 745XRFB V=0.002, M=SPEC, R=368;Sr V=0.07, M=SPEC, R=368;Ba V=0.06, M=SPEC, R=368;K V=0.98, M=NN, R=745;Zr V=0.002, 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;Co V=25.6, M=XRF, R=201;
P49Se1451.98605179.60313Powers, 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.P49Se14Whole Rock H2OP=0.34; H2OM=0.06; CO2=0NN 21.4 89.6 242 27.8 785 334 201XRFB V=0.002, M=SPEC, R=368;Sr V=0.07, M=SPEC, R=368;Ba V=0.06, M=SPEC, R=368;K V=0.98, M=NN, R=745;Zr V=0.002, 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;Co V=25.6, M=XRF, R=201;

SAMPLE LOCATION

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