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SAMPLE INFO : 09KCnye011b
Sample ID:09KCnye011b
Station ID:09KCNYE011
Latitude:52.17437
Longitude:-175.52678
Datum:NAD83
Date Sampled:2009-01-01
Sample Type 1:Pyroclastic Flow
Sample Type 2:Pumice
 Text Description:
Luna pyroclastic deposits. White pumice, salmon weathering, in young pre-08 pfs in little fingers and arroyos just N of old cabin site. Can see '08 deposits on top. NO SOIL, must have been peeled off and stripped during eruption, unlike S coast, where turf mat is preserved beneath thin deposits. This unit is predominantly pfs with lithic blocks up to 30 cm, typically 3-5 cm). Sample is from isolated pumice layer (discontinuous over 10's of meters horizontally) ~5-6 cm thick, pmax ~5cm. The bag contains two major lithologies. 09KCnye011a, approx 70% by volume, is 20%k pumice, mostly subrounded (but pMax - 9x7x5cm is subangular) w/ ~20% phenocrysts [1mm plag, 1x2mm cpx>opx>amph]. Vesicles are irregular, gms may be microlitic. Sample of 11a from a few 2-3cm pumices. 09KCnye011b, ~30 vol% is very pale tannish-gray (10% black) and is mostly distinguished by having bulk density <1g/cm3 (it floats). Phenocrysts of plag, px, am somewhat smaller and less abundant than 011a. Vesicles less are round, abundant, and generally 0.5 mm or less. Sample of 011a from several separate pumices.

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
09KCNYE01152.17437-175.52678Nye, C. J.2009-01-01 KasatochiLuna pyroclastic deposits. White pumice, salmon weathering, in young pre-08 pfs in little fingers and arroyos just N of old cabin site. Can see '08 deposits on top. NO SOIL, must have been peeled off and stripped during eruption, unlike S coast, where turf mat is preserved beneath thin deposits. This unit is predominantly pfs with lithic blocks up to 30 cm, typically 3-5 cm). Sample is from isolated pumice layer (discontinuous over 10's of meters horizontally) ~5-6 cm thick, pmax ~5cm. The bag contains two major lithologies. 09KCnye011a, approx 70% by volume, is 20%k pumice, mostly subrounded (but pMax - 9x7x5cm is subangular) w/ ~20% phenocrysts [1mm plag, 1x2mm cpx>opx>amph]. Vesicles are irregular, gms may be microlitic. Sample of 11a from a few 2-3cm pumices. 09KCnye011b, ~30 vol% is very pale tannish-gray (10% black) and is mostly distinguished by having bulk density <1g/cm3 (it floats). Phenocrysts of plag, px, am somewhat smaller and less abundant than 011a. Vesicles less are round, abundant, and generally 0.5 mm or less. Sample of 011a from several separate pumices.09KCnye011bPyroclastic FlowBombWhole-rock 59.12 0.553 18.04 6.8 0.212 2.78 7.09 4.11 1.075 0.224 98.8312761XRF6.8 2.9756 22.6 445.1 462.3 9.502 20.742 2.94 13.165 3.5 1.1385 3.681 0.628 4.06 0.8871 2.5425 0.3812 2.5322 0.4203 24.4 99.2 1.9149 2.6327 0.13578 21.233 2.9517 1.7056 11.3 123.2 6.6 5 64.1 97.1 19.9 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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