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SAMPLE INFO : 96-ARh-59D
Sample ID:96-ARh-59D
Station ID:96-ARh-59
Latitude:54.1236
Longitude:-165.99068
Datum:NAD83
Date Sampled:1996-00-00
Sample Type 1:Lava
Sample Type 2:Dome
Field Lithology:Andesite
Final Unit:lbc
Text Description:
Qocd - older caldera wall rocks (Pleistocene). Dome. Small dome or thick flow of banded, mixed magma, of porphyritic high-silica andesite. Dark bands (59.2% SiO2, loc. 9, table 1) are medium dark gray and consist of phenocrysts of plagioclase (5-10%, 2 mm), clinopyroxene (1-3%, 1.5 mm), and orthopyroxene (trace -1%, <1 mm) in a cryptofelsitic groundmass.

References:
Geologic map of Akutan Island, Alaska
The eruptive history, magmatic evolution, and influence of glacial ice at long-lived Akutan volcano, eastern 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
96-ARh-5954.1236-165.99068Richter, D. H.1996-00-00 Akutanlat/long estimated from paper mapQocd - older caldera wall rocks (Pleistocene). Dome. Small dome or thick flow of banded, mixed magma, of porphyritic high-silica andesite. Dark bands (59.2% SiO2, loc. 9, table 1) are medium dark gray and consist of phenocrysts of plagioclase (5-10%, 2 mm), clinopyroxene (1-3%, 1.5 mm), and orthopyroxene (trace -1%, <1 mm) in a cryptofelsitic groundmass.96-ARh-59DLavalbcWhole-rock 59.21 1.041 17.62 6.64 0.185 2.67 6.08 4.77 1.53 0.263 924XRF6.64 1.53326904 30.29435242 512.9080799 360.0942518 13.38221925 31.49687844 4.548925954 20.57230897 5.761757305 1.643270593 6.387636882 1.086724536 7.009980476 1.497820422 4.149691212 0.60621893 3.903221403 0.608988283 37.59516443 0 3.235224813 4.486313662 0.237298862 10.04653155 4.080818742 1.990036165 22.17778219 129 5 0 17 81 20 924ICPMS: Cs, Rb, Ba, Sr, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Nb, Hf, Ta, Pb, Th, U, Sc; XRF: V, Cr, Cu, Zn, Ga;

SAMPLE LOCATION

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