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SAMPLE INFO : 16
Sample ID:16
Station ID:16
Latitude:56.58
Longitude:-169.63
Datum:NAD83
Date Sampled:1948-01-01
Sample Type 1:Lava
Text Description:
Sample of phyric hyalobasanite forming a dike spreading out to a sill. Phenocrysts of olivine and augite make up about 30 percent of the rock. The groundmass is fine grained with very small crystals of pyroxene, olivine, and magnetite in a meshwork of plagioclase laths and glass.

References:
Geology and petrology of the Pribilof 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
1656.58-169.63Barth, T. F. W.1948-01-01 St. George volcanic field1/3 of a mile east of the village, St. George IslandSample of phyric hyalobasanite forming a dike spreading out to a sill. Phenocrysts of olivine and augite make up about 30 percent of the rock. The groundmass is fine grained with very small crystals of pyroxene, olivine, and magnetite in a meshwork of plagioclase laths and glass.16Whole Rock 45 2.4 14 11.3 0.2 10 11 3.8 1.2 0.65 98.3301RAPIDA3.48

SAMPLE LOCATION

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Page modified: July 14, 2014 13:37
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