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SAMPLE INFO : 47AC26
Sample ID:47AC26
Station ID:47AC267
Latitude:52.3488
Longitude:175.909
Datum:NAD83
Date Sampled:1947-01-01
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Basalt
Text Description:
Sample of lava flow forming the small hill (Hill 1350) south of Kittiwake Pond, is a pale gray, porous holocrystalline olivine andesite, about 77% plagioclase, which ranges in composition from An20 to An70 and averages about An45. Clinopyroxene grains, 0.1 to 0.5 mm (Di60,He40), make up 15% of the rock; olivine grains (Fa20), ranging in size from 0.2 to 2 mm, about 5%; and magnetite grains, 0.1 to 0.5 mm in size, about 3%. A trace of hypersthene is present. The seriate texture is essentially determined by the presence of stout subparallel laths of plagioclase with interstitial granules of clinopyroxene and magnetite.

References:
Geology of Buldir Island, Aleutian Islands, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final UnitMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
47AC26752.3488175.909Unknown, Unknown1947-01-01 BuldirHill 1350 south of Kittiwake Pond, Buldir IslandSample of lava flow forming the small hill (Hill 1350) south of Kittiwake Pond, is a pale gray, porous holocrystalline olivine andesite, about 77% plagioclase, which ranges in composition from An20 to An70 and averages about An45. Clinopyroxene grains, 0.1 to 0.5 mm (Di60,He40), make up 15% of the rock; olivine grains (Fa20), ranging in size from 0.2 to 2 mm, about 5%; and magnetite grains, 0.1 to 0.5 mm in size, about 3%. A trace of hypersthene is present. The seriate texture is essentially determined by the presence of stout subparallel laths of plagioclase with interstitial granules of clinopyroxene and magnetite.47AC26LavaWhole-rock 52.25 0.8 17.68 6.95 0.13 7.32 9.02 0.22Total calculated from mixed methods 100.3272NN2.354.84Cl=0.05; F=0.04; H2OM=0.28; H2OP=0.88NN units are percent 0.02units are percent 0.04n.d. 0 units are percent 0.004 n.d. 0 0.008units are percent 0.02 0.002units are percent 0.01units are percent 0.004n.d. 0units are percent 0.0008n.d. 0n.d. 0 272SPECNa2O V=3.51, M=FPHOT, R=272;K2O V=0.88, M=FPHOT, R=272;

SAMPLE LOCATION

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