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SAMPLE INFO : 53-F-66
Sample ID:53-F-66
Station ID:53-F-66
Latitude:53.88707
Longitude:-166.93202
Datum:NAD83
Date Sampled:1953-01-01
Sample Type 1:Countryrock
Sample Type 2:Plutonic
Text Description:
Granodiorite from the Shaler pluton near the contact on the ridge between Blueberry Bay and Three Island Bay. The texture is hypidiomorphic- granular. Felsic minerals compose 70-80 percent of the rock: 10-15 percent quartz with undulatory extinction, 5-10 percent orthoclase partly altered to kaolin (
References:
Geology of Unalaska Island and adjacent insular shelf, 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
53-F-6653.88707-166.93202Fraser, G. D.1953-01-01 MakushinShaler pluton near the contact on the ridge between Blueberry Bay and Three Island Bay.Granodiorite from the Shaler pluton near the contact on the ridge between Blueberry Bay and Three Island Bay. The texture is hypidiomorphic- granular. Felsic minerals compose 70-80 percent of the rock: 10-15 percent quartz with undulatory extinction, 5-10 percent orthoclase partly altered to kaolin (<l percent), and 50-60 percent plagioclase partly altered to sericite (<5 percent). The plagioclase composition, by extinction angle, is An43 [mean of 22 crystals, standard deviation is 12 percent An, average amount of zoning per individual plagioclase crystal is 4 percent An per crystal]; by index oils, is An46. Mafic minerals compose 20-30 percent : <1 percent clinopyroxene (remnants), 9-14 percent hornblende (an indeterminate amount after pyroxene) partially altered to magnetite (<1 percent) and hematite (<1 percent), 9-14 percent biotite partly altered to penninite (2-3 percent) and sphene (0.1-0.5 percent), 0.5-1.5 percent of apatite, 0.5-1.5 percent magnetite-ilmenite, <1 percent sphene, <0.01 percent zircon (two small crystals, one with a pleochroic halo in biotite, the other with a pleochroic halo in hornblende). The rock is cut by a thin vein of orthoclase.53-F-66Whole Rock 59.7 0.75 17 5.5 0.1 4 6.4 3.9 1.7 0.2Total not given in table. 99.88315RAPIDA23.5H2OM=0.05; H2OP=0.63; CO2=0.05RAPIDAB V=0.005, M=NN, R=315;S V=0, M=RAPIDA, R=315;Ba V=0.04, M=NN, R=315;Sr V=0.06, M=NN, R=315;Yb V=0, M=NN, R=315;Y V=0, M=NN, R=315;Zr V=0.01, M=NN, R=315;Pb V=0, M=NN, R=315;Co V=0.002, M=NN, R=315;Cr V=0.009, M=NN, R=315;Cu V=0.006, M=NN, R=315;Ga V=0.002, M=NN, R=315;Mo V=0, M=NN, R=315;Ni V=0.004, M=NN, R=315;Sc V=0.001, M=NN, R=315;V V=0.01, M=NN, R=315;

SAMPLE LOCATION

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