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SAMPLE INFO : 52-Sn-100
Sample ID:52-Sn-100
Station ID:52-Sn-100
Latitude:51.9242
Longitude:-177.1623
Datum:NAD83
Date Sampled:1952-01-01
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Dacite
Text Description:
52-Sn-100 (Rittmann: rhyodacite) is from a very light-colored podlike body about 200 yards wide, exposed 4.8 miles west of the mouth of Kanaga Bay on the south coast of Kanaga Island. This was the only light rhyodacite found in the Delarof-Kanaga area. Quartz, oligoclase, and biotite are present in the white to light-green glassy matrix (n~1.476) which makes up about 85 percent of the rock.

References:
Geology of the Delarof and westernmost Andreanof Islands, 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
52-Sn-10051.9242-177.1623Snyder, G. L.1952-01-01 KanagaS. Kanaga52-Sn-100 (Rittmann: rhyodacite) is from a very light-colored podlike body about 200 yards wide, exposed 4.8 miles west of the mouth of Kanaga Bay on the south coast of Kanaga Island. This was the only light rhyodacite found in the Delarof-Kanaga area. Quartz, oligoclase, and biotite are present in the white to light-green glassy matrix (n~1.476) which makes up about 85 percent of the rock.52-Sn-100Whole Rock 71.4 0.08 12.68 0.85 0.13 0.32 0.99 3.94 2.29 0.17 99.73355NN0.40.45H2OM=3.28; H2OP=3.59; CO2=0.05NNCl V=0.01, M=NN, R=355;F V=0.03, M=NN, R=355;S V=0.02, M=NN, R=355;

SAMPLE LOCATION

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Page modified: July 14, 2014 13:37
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