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SAMPLE INFO : 96-ARh-59L
Sample ID:96-ARh-59L
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. Light bands (62.8% SiO2, loc. 9, table 1) are medium gray and consist of small phenocrysts of plagioclase (5-10%, 1 mm), and clinopyroxene ( trace-2%, <1 mm) in a trachyitic groundmass of plagioclase microlites

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. Light bands (62.8% SiO2, loc. 9, table 1) are medium gray and consist of small phenocrysts of plagioclase (5-10%, 1 mm), and clinopyroxene ( trace-2%, <1 mm) in a trachyitic groundmass of plagioclase microlites96-ARh-59LLavalbcWhole-rock 62.86 0.654 16.96 5.82 0.121 2.38 5.01 4.27 1.79 0.137 924XRF5.82 1.055059533 39.61474837 520.4218337 286.750314 10.55693188 23.15690196 3.370549856 15.20742243 4.179561834 1.207931985 4.601901262 0.817213894 5.330482997 1.183491305 3.396972564 0.5122552 3.306838412 0.533136207 32.08706876 0 3.207967517 5.017402958 0.249363772 9.163006192 4.135018528 2.02678927 14.34199956 121 9 6 60 69 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, Ni, Cu, Zn, Ga;

SAMPLE LOCATION

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