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SAMPLE INFO : 54-D-84
Sample ID:54-D-84
Station ID:54-D-84
Latitude:53.924
Longitude:-166.99398
Datum:NAD83
Date Sampled:1954-01-01
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
 Text Description:
Andesite vitrophyre from a flow of Eider Point basalt 4 miles northwest of Makushin Volcano. It is grayish black and contains plagioclase phenocrysts as large as 1 millimeter in sheeted and finely vesicular glass. Phenocrysts compose 1 percent of the rock and include euhedral to fragmental labradorite and traces of clinopyroxene and magnetite. The glassy groundmass has aligned microlites, dusty inclusions, and strong flow bands of light and dark streaks, and contains some euhedral cristobalite on vesicle walls.

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-8453.924-166.99398Drewes, Harald1954-01-01 MakushinEider Point basalt (andesite(?) of Point Kadin) from 3 mi E of Pt. Kadin and 4 miles northwest of Makushin VolcanoAndesite vitrophyre from a flow of Eider Point basalt 4 miles northwest of Makushin Volcano. It is grayish black and contains plagioclase phenocrysts as large as 1 millimeter in sheeted and finely vesicular glass. Phenocrysts compose 1 percent of the rock and include euhedral to fragmental labradorite and traces of clinopyroxene and magnetite. The glassy groundmass has aligned microlites, dusty inclusions, and strong flow bands of light and dark streaks, and contains some euhedral cristobalite on vesicle walls.54-D-84LavaWhole-rock 62.59 0.99 15.3 0.19 1.89 4.67 4.87 2.09 0.35 100.82533XRF1.695.37LOI=0.18XRF 17349533CALC
54-D-8453.924-166.99398Drewes, Harald1954-01-01 MakushinEider Point basalt (andesite(?) of Point Kadin) from 3 mi E of Pt. Kadin and 4 miles northwest of Makushin VolcanoAndesite vitrophyre from a flow of Eider Point basalt 4 miles northwest of Makushin Volcano. It is grayish black and contains plagioclase phenocrysts as large as 1 millimeter in sheeted and finely vesicular glass. Phenocrysts compose 1 percent of the rock and include euhedral to fragmental labradorite and traces of clinopyroxene and magnetite. The glassy groundmass has aligned microlites, dusty inclusions, and strong flow bands of light and dark streaks, and contains some euhedral cristobalite on vesicle walls.54-D-84LavaWhole-rock 63 1 15.3 6.9 0.19 1.9 4.7 4.9 2.1 0.35Total not given in table. 100.83315RAPIDA1.75.4H2OM=0.04; H2OP=0.14; CO2=0.05RAPIDA units are percent 0.1units are percent 0.04 units are percent 0 units are units are percent 0units are percent 0.02 units are percent 0 units are percent 0.004 0.006units are percent 0 0units are percent 0units are percent 0.004 units are percent 0units are percent 0 315NN

SAMPLE LOCATION

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