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SAMPLE INFO : 54-D-44
Sample ID:54-D-44
Station ID:54-D-44
Latitude:53.879
Longitude:-166.76198
Datum:NAD83
Date Sampled:1954-01-01
Sample Type 1:Lava
Field Lithology:Andesite
Text Description:
Andesite porphyry from the Makushin volcanics 3 miles southeast of Sugarloaf Cone. It is medium gray to purplish gray and contains plagioclase and pyroxene phenocrysts 1-4 millimeters long. Phenocrysts compose 20 percent of the rock: 12 percent andesine to bytownite, which forms euhedral laths and fragments, and which has normal and oscillatory zones, zones of dusty inclusions, and apatite inclusions; 5 percent augite(?), which forms euhedral to anhedral grains, crystal clusters, and reaction rims around hypersthene; 2 percent subhedral hypersthene with reaction rims; a trace of anhedral olivine(?); a trace of subhedral to anhedral magnetite; and a trace of euhedral apatite. The groundmass has a felty to flow texture and includes abundant subhedral andesine laths, much augite(?), and a trace of a granular black opaque mineral.

References:
Geology of Unalaska Island and adjacent insular shelf, 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
54-D-4453.879-166.76198Drewes, Harald1954-01-01 MakushinMakushin volcanics from 2 1/2 mi SE of Sugarloaf ConeAndesite porphyry from the Makushin volcanics 3 miles southeast of Sugarloaf Cone. It is medium gray to purplish gray and contains plagioclase and pyroxene phenocrysts 1-4 millimeters long. Phenocrysts compose 20 percent of the rock: 12 percent andesine to bytownite, which forms euhedral laths and fragments, and which has normal and oscillatory zones, zones of dusty inclusions, and apatite inclusions; 5 percent augite(?), which forms euhedral to anhedral grains, crystal clusters, and reaction rims around hypersthene; 2 percent subhedral hypersthene with reaction rims; a trace of anhedral olivine(?); a trace of subhedral to anhedral magnetite; and a trace of euhedral apatite. The groundmass has a felty to flow texture and includes abundant subhedral andesine laths, much augite(?), and a trace of a granular black opaque mineral.54-D-44LavaWhole-rock 60.23 0.82 16.4 0.15 3 6.3 3.7 2.1 0.2 100.61533XRF3.53.6LOI=0.64XRF 17435533CALC
54-D-4453.879-166.76198Drewes, Harald1954-01-01 MakushinMakushin volcanics from 2 1/2 mi SE of Sugarloaf ConeAndesite porphyry from the Makushin volcanics 3 miles southeast of Sugarloaf Cone. It is medium gray to purplish gray and contains plagioclase and pyroxene phenocrysts 1-4 millimeters long. Phenocrysts compose 20 percent of the rock: 12 percent andesine to bytownite, which forms euhedral laths and fragments, and which has normal and oscillatory zones, zones of dusty inclusions, and apatite inclusions; 5 percent augite(?), which forms euhedral to anhedral grains, crystal clusters, and reaction rims around hypersthene; 2 percent subhedral hypersthene with reaction rims; a trace of anhedral olivine(?); a trace of subhedral to anhedral magnetite; and a trace of euhedral apatite. The groundmass has a felty to flow texture and includes abundant subhedral andesine laths, much augite(?), and a trace of a granular black opaque mineral.54-D-44LavaWhole-rock 60.1 0.82 16.4 6.7 0.15 3 6.3 3.7 2.1 0.2Total not given in table. 100.62315RAPIDA3.53.6H2OM=0.12; H2OP=0.52; CO2=0.05RAPIDA units are percent 0.1units are percent 0.1 units are percent 0 units are percent 0units are percent 0.02 units are percent 0 units are percent 0.004 0.02units are percent 0.003 0.002units are percent 0units are percent 0.006 units are percent 0units are percent 0 315NN

SAMPLE LOCATION

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