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SAMPLE INFO : 96-Mc-34
Sample ID:96-Mc-34
Station ID:96-Mc-34
Latitude:54.1213
Longitude:-166.00368
Datum:NAD83
Date Sampled:1996-00-00
Sample Type 1:Lava
Field Lithology:Basalt
Final Unit:pap
Text Description:
Qocp - older caldera wall rocks (Pleistocene). Plug. Massive intrusive exposed on Akutan Peak in wall of present caldera. Rock, collected from talus at foot of peak, is a medium gray, porphyritic basalt (51.1% SiO2, loc. 8, table 1) containing phenocrysts of plagioclase (15-30%, 4 mm), clinopyroxene (1-6%, 2 mm), and olivine (1-5%, 1 mm) in a cryptocrystalline 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-Mc-3454.1213-166.00368McGimsey, R. G.1996-00-00 Akutanlat/long estimated from paper mapQocp - older caldera wall rocks (Pleistocene). Plug. Massive intrusive exposed on Akutan Peak in wall of present caldera. Rock, collected from talus at foot of peak, is a medium gray, porphyritic basalt (51.1% SiO2, loc. 8, table 1) containing phenocrysts of plagioclase (15-30%, 4 mm), clinopyroxene (1-6%, 2 mm), and olivine (1-5%, 1 mm) in a cryptocrystalline groundmass.96-Mc-34LavapapWhole-rock 51.72 1.002 18.39 9.53 0.199 5.03 10.1 3.29 0.59 0.139 924XRF9.53 0.815446856 13.54370072 218.3238894 400.061514 5.32945793 12.55593352 1.983757214 9.283362936 3.088685105 1.07287845 3.648828681 0.653586097 4.19283933 0.898641522 2.516632594 0.370128848 2.299612019 0.37382807 22.79541812 58.16352211 1.029142861 1.866221236 0.088884526 0.459087804 1.046960594 0.596699439 33.03810814 282 29 7 121 71 24 924ICPMS: Cs, Rb, Ba, Sr, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Zr, Nb, Hf, Ta, Pb, Th, U, Sc; XRF: V, Cr, Ni, Cu, Zn, Ga;

SAMPLE LOCATION

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