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SAMPLE INFO : K-2554
Sample ID:K-2554
Station ID:K-2554
Latitude:58.372
Longitude:-154.719
Datum:NAD83
Sample Type 1:Lava
Sample Type 2:Flow
Text Description:
NE Snowy volcano. Second flow of stack to north; 3000-ft rim facing Rainbow Race Glacier; 4.9 km NNW of Peak 7090. Sample has a whole-rock K-Ar calculated age of 171 +/- 8 ka (Hildreth and others, 2001). Sample in thin section is 25-30% plagioclase to 2.5 mm, 10% subequal amounts of clinopyroxene and orthopyroxene, to 3 mm, 1-2% oxides, to 0.4 mm, contains no olivine, no sieved plagioclase, and does contain oxide-pyroxene-plagioclase aggregates.

References:
Snowy Mountain: A pair of small andesite-dacite stratovolcanoes in Katmai National Park

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedVolcanoEruptionLocation DescriptionText DescriptionSample IDMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
K-255458.372-154.719Unknown, UnknownSnowyNortheast cone of Snowy Mountain, lat/long from figure 2. NE Snowy volcano. Second flow of stack to north; 3000-ft rim facing Rainbow Race Glacier; 4.9 km NNW of Peak 7090.NE Snowy volcano. Second flow of stack to north; 3000-ft rim facing Rainbow Race Glacier; 4.9 km NNW of Peak 7090. Sample has a whole-rock K-Ar calculated age of 171 +/- 8 ka (Hildreth and others, 2001). Sample in thin section is 25-30% plagioclase to 2.5 mm, 10% subequal amounts of clinopyroxene and orthopyroxene, to 3 mm, 1-2% oxides, to 0.4 mm, contains no olivine, no sieved plagioclase, and does contain oxide-pyroxene-plagioclase aggregates.K-2554Whole Rock 63.6 0.67 15.84 5.51 0.11 2.71 5.45 3.62 1.91 0.2 99.33889XRF5.51LOI=0.03IGN

SAMPLE LOCATION

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Page modified: July 14, 2014 13:37
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