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SAMPLE INFO : 12AKMC033
Sample ID:12AKMC033
Station ID:12AKMC033
Latitude:54.13017
Longitude:-165.92701
Datum:NAD83
Date Sampled:2012-07-30
Sample Type 1:Lava
Final Unit:bpba
Text Description:
Lava flow 1 down (?) from BJ019 along south side of gully. Nice waterfall cascades over this one from side gully. Massive to platy weathered flow. VERY prominent plag megacrysts. 8 m tall face. Variably glassy. What we sample has med gray gmass. 15% plag, 1-20 mm, 10% cpx, 1mm, 1-3% ol to 3 mm (biggest we've seen), pl-ol clots to 8 mm. some plag megacrysts cored by mafic mineral

References:
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
12AKMC03354.13017-165.92701Coombs, M. L.2012-07-30 AkutanSW flank of modern edificeLava flow 1 down (?) from BJ019 along south side of gully. Nice waterfall cascades over this one from side gully. Massive to platy weathered flow. VERY prominent plag megacrysts. 8 m tall face. Variably glassy. What we sample has med gray gmass. 15% plag, 1-20 mm, 10% cpx, 1mm, 1-3% ol to 3 mm (biggest we've seen), pl-ol clots to 8 mm. some plag megacrysts cored by mafic mineral12AKMC033LavabpbaWhole-rock 54.74689701 1.104995729 17.77043497 9.143991792 0.203430092 3.897408 8.06456722 4.050055514 0.832876253 0.18534342 99.4732478614991XRF9.143991792 0.412022665 15.31514456 327.4635417 378.9295006 8.44172849 19.4758476 3.041542237 14.47037753 4.369775987 1.393188729 5.094780858 0.902668707 5.79811334 1.229465692 3.473582343 0.510899156 3.173528232 0.491500853 32.32887565 90.23261097 1.697061124 2.685280717 0.123482263 21.27791223 1.629856561 0.787796411 26.19774868 264.3046 0.0994 6.8586 61.9262 82.2038 19.2836 14991ICPMS: 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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