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SAMPLE INFO : 12
Sample ID:12
Station ID:12
Latitude:56.58
Longitude:-169.63
Datum:NAD83
Date Sampled:1948-01-01
Sample Type 1:Lava
Text Description:
Sample of a vesicular, columnar flow or sill of aphyric olivine basalt. The rock consists of large, randomly oriented laths of plagioclase forming an irregular meshwork filled with olivine, augite, apatite, and magnetite, the latter being in large measure a reaction product of olivine; indeed, the olivine has the properties of pure forsterite, indicating that the fayalite component has been used up in the reaction.

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
1256.58-169.63Barth, T. F. W.1948-01-01 St. George volcanic field Between Zapadni Bay and Red Bluffs, St. George IslandSample of a vesicular, columnar flow or sill of aphyric olivine basalt. The rock consists of large, randomly oriented laths of plagioclase forming an irregular meshwork filled with olivine, augite, apatite, and magnetite, the latter being in large measure a reaction product of olivine; indeed, the olivine has the properties of pure forsterite, indicating that the fayalite component has been used up in the reaction.12Whole Rock 47.3 2.1 15 11.8 0.2 10.2 9 2.8 1 0.33 99.5301RAPIDA7.64.8

SAMPLE LOCATION

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