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SAMPLE INFO : 09KCNYE110
Sample ID:09KCNYE110
Station ID:09KCNYE110
Latitude:52.18468
Longitude:-175.51384
Datum:NAD83
Date Sampled:2009-01-01
Text Description:
Hand sample; >20g. Eastern edge of sea lion colony. Massive cliff of this basalt est. 30-40 m high. Throughgoing zones of subhorizontal columns-to-platy-fracture. Whole outcrop: crude but primary long fractures and vertical conchoidal-to-planar, modest curving of joint surfaces, few meters wide for columns. Often crosscut by subhorizontal fractures and/or incipient columns 10-20 cm scale. Thick lava pond/flow w/ contorted cooling history suggests emplaced near ice/water. Rock is cpx basalt similar to others along this beach but with darker gms. 30% black over all, gms to 40% black. Fine-grained xl rich plag cpx lava. Generally equigranular w/ cpx 1mm and plag 1x2mm. Pl>cpx>>>other mafics (amph?, opx?). Gms looks nearly holocrystalline. Meets my understanding of Calvert Protocol for dating. Occasional cm-scale gabbro/mush clots are dominantly pl+cpx, ~2mm equigranular. Some amph sheathing on cpx?

References:
Geology of Kasatochi volcano, 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
09KCNYE11052.18468-175.51384Nye, C. J.2009-08-12 KasatochiHand sample; >20g. Eastern edge of sea lion colony. Massive cliff of this basalt est. 30-40 m high. Throughgoing zones of subhorizontal columns-to-platy-fracture. Whole outcrop: crude but primary long fractures and vertical conchoidal-to-planar, modest curving of joint surfaces, few meters wide for columns. Often crosscut by subhorizontal fractures and/or incipient columns 10-20 cm scale. Thick lava pond/flow w/ contorted cooling history suggests emplaced near ice/water. Rock is cpx basalt similar to others along this beach but with darker gms. 30% black over all, gms to 40% black. Fine-grained xl rich plag cpx lava. Generally equigranular w/ cpx 1mm and plag 1x2mm. Pl>cpx>>>other mafics (amph?, opx?). Gms looks nearly holocrystalline. Meets my understanding of Calvert Protocol for dating. Occasional cm-scale gabbro/mush clots are dominantly pl+cpx, ~2mm equigranular. Some amph sheathing on cpx?09KCNYE110Whole-rock 58.3 0.546 18.53 6.46 0.187 3.09 7.77 3.81 1.098 0.205 99.9412761XRF6.46 0.8551 19.6 406.4 474 9.158 19.779 2.7436 12.233 3.143 1.0542 3.321 0.5725 3.656 0.7877 2.2536 0.3356 2.2045 0.3707 22 90.9 1.9114 2.3953 0.13326 12.174 2.9381 1.5224 14.6 154.8 19.9 11.1 19.2 82 18.1 12761ICPMS: Cs, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Nb, Hf, Ta, Pb, Th, U; XRF: Rb, Ba, Sr, Y, Zr, Sc, V, Cr, Ni, Cu, Zn, Ga;

SAMPLE LOCATION

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