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SAMPLE INFO : 54-D-62
Sample ID:54-D-62
Station ID:54-D-62
Latitude:53.971
Longitude:-166.651
Datum:NAD83
Date Sampled:1954-01-01
Sample Type 1:Lava
Field Lithology:Basalt
Text Description:
Feldspathic basalt porphyry from the Makushin volcanics 1 1/4 miles west of Wide Bay Cone. It is light gray to medium light gray and contains pyroxene phenocrysts one-third millimeter long. Phenocrysts compose 5 percent of the rock and include augite or diopside, which forms euhedral to anhedral crystals and crystal clusters. The groundmass has a felty to coarsely crystalline texture and includes abundant subhedral laths of sodic to calcic labradorite with normal zones and faint oscillatory zones, much granular and anhedral augite (?), and subhedral and anhedral olivine and magnetite.

References:
Geology of Unalaska Island and adjacent insular shelf, Aleutian 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
54-D-6253.971-166.651Drewes, Harald1954-01-01 MakushinMakushin volcanics 1 1/4 miles west of Wide Bay ConeFeldspathic basalt porphyry from the Makushin volcanics 1 1/4 miles west of Wide Bay Cone. It is light gray to medium light gray and contains pyroxene phenocrysts one-third millimeter long. Phenocrysts compose 5 percent of the rock and include augite or diopside, which forms euhedral to anhedral crystals and crystal clusters. The groundmass has a felty to coarsely crystalline texture and includes abundant subhedral laths of sodic to calcic labradorite with normal zones and faint oscillatory zones, much granular and anhedral augite (?), and subhedral and anhedral olivine and magnetite.54-D-62Whole Rock 50.55 0.86 18.04 0.14 7.27 10.48 2.68 0.86 0.14 99.85533XRF2.66.38LOI=0.27XRF 9.8 658 33.8 745XRFCl V=0.01, M=NN, R=315;F V=0.03, M=NN, R=315;S V=0, M=NN, R=315;K V=0.71, M=NN, R=745;K V=7140, M=CALC, R=533;Ti V=5156, M=CALC, R=533;
54-D-6253.971-166.651Drewes, Harald1954-01-01 MakushinMakushin volcanics 1 1/4 miles west of Wide Bay ConeFeldspathic basalt porphyry from the Makushin volcanics 1 1/4 miles west of Wide Bay Cone. It is light gray to medium light gray and contains pyroxene phenocrysts one-third millimeter long. Phenocrysts compose 5 percent of the rock and include augite or diopside, which forms euhedral to anhedral crystals and crystal clusters. The groundmass has a felty to coarsely crystalline texture and includes abundant subhedral laths of sodic to calcic labradorite with normal zones and faint oscillatory zones, much granular and anhedral augite (?), and subhedral and anhedral olivine and magnetite.54-D-62Whole Rock 50.5 0.86 18.02 8.71 0.17 7.26 10.47 2.68 0.86 0.14 99.93315NN2.596.35H2OM=0.13; H2OP=0.14; CO2=0NNCl V=0.01, M=NN, R=315;F V=0.03, M=NN, R=315;S V=0, M=NN, R=315;K V=0.71, M=NN, R=745;K V=7140, M=CALC, R=533;Ti V=5156, M=CALC, R=533;

SAMPLE LOCATION

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