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SAMPLE INFO : 47AC80
Sample ID:47AC80
Station ID:47AC80
Latitude:51.8938
Longitude:179.636
Datum:NAD83
Date Sampled:1947-01-01
Sample Type 1:Lava
Field Lithology:Basalt
Final Unit:Sugarloaf Head
Text Description:
Specimen 47AC80 (137,150' E., 271,850' N.) is from a compact block on the rim of the crater of the westernmost part of the small parasitic cone of Sugarloaf. It also is an olivine basalt, with plagioclase averaging An64, olivine (Fa30) as much as 0.3 mm in diameter, augite less than 0.5 mm and green in hand specimen, and magnetite. The groundmass has an intergranular texture, with prisms of clinopyroxene and microlites of plagioclase (0.02 mm in diameter).

References:
Geologic reconnaissance of Semisopochnoi Island, western Aleutian Islands, Alaska
Postglacial eruptive history and geochemistry of Semisopochnoi volcano, western 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
47AC8051.8938179.636Unknown, Unknown1947-01-01 Sugarloaf PeakCompact block on the rim of the crater of the westernmost part of the small parasitic cone of Sugarloaf (137,150' E., 271,850' N.)Specimen 47AC80 (137,150' E., 271,850' N.) is from a compact block on the rim of the crater of the westernmost part of the small parasitic cone of Sugarloaf. It also is an olivine basalt, with plagioclase averaging An64, olivine (Fa30) as much as 0.3 mm in diameter, augite less than 0.5 mm and green in hand specimen, and magnetite. The groundmass has an intergranular texture, with prisms of clinopyroxene and microlites of plagioclase (0.02 mm in diameter).47AC80LavaSugarloaf HeadWhole-rock 52.39 1.04 19.27 9.3 0.23 3.65 8.42 3.64 1.24 0.31 100.15368NN2.187.34H2OP=0.39; H2OM=0.09; CO2=0.02NN 23 525 3.7 units are percent 1.03745XRF: Rb, Sr, Ni; NN: K;
47AC8051.8938179.636Unknown, Unknown1947-01-01 Sugarloaf PeakCompact block on the rim of the crater of the westernmost part of the small parasitic cone of Sugarloaf (137,150' E., 271,850' N.)Specimen 47AC80 (137,150' E., 271,850' N.) is from a compact block on the rim of the crater of the westernmost part of the small parasitic cone of Sugarloaf. It also is an olivine basalt, with plagioclase averaging An64, olivine (Fa30) as much as 0.3 mm in diameter, augite less than 0.5 mm and green in hand specimen, and magnetite. The groundmass has an intergranular texture, with prisms of clinopyroxene and microlites of plagioclase (0.02 mm in diameter).47AC80LavaSugarloaf HeadWhole-rock H2OP=0.39; H2OM=0.09; CO2=0.02NN 24.6 101 194 7.3 22.6 120 75.2 201XRF
47AC8051.8938179.636Unknown, Unknown1947-01-01 Sugarloaf PeakCompact block on the rim of the crater of the westernmost part of the small parasitic cone of Sugarloaf (137,150' E., 271,850' N.)Specimen 47AC80 (137,150' E., 271,850' N.) is from a compact block on the rim of the crater of the westernmost part of the small parasitic cone of Sugarloaf. It also is an olivine basalt, with plagioclase averaging An64, olivine (Fa30) as much as 0.3 mm in diameter, augite less than 0.5 mm and green in hand specimen, and magnetite. The groundmass has an intergranular texture, with prisms of clinopyroxene and microlites of plagioclase (0.02 mm in diameter).47AC80LavaSugarloaf HeadWhole-rock H2OP=0.39; H2OM=0.09; CO2=0.02NN units are percent 0.07units are percent 0.04 units are percent 0.01 units are percent 0.002 0.02 0.003 units are percent 0.01 units are percent 0.002 368SPEC

SAMPLE LOCATION

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