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SAMPLE INFO : K-2557
Sample ID:K-2557
Station ID:K-2557
Latitude:58.346
Longitude:-154.765
Datum:NAD83
Sample Type 1:Lava
Sample Type 2:Flow
Text Description:
SW Snowy volcano. Basal lava flow on basement at 4000-ft point, 3.3 km NNW of Peak 6770. Sample has a whole-rock K-Ar calculated age of 199 +/- 9 ka (Hildreth and others, 2001). Sample in thin section is 15% plagioclase, to 2.5 mm; 5-7% subequal amounts of clinopyroxene and orthopyroxene, to 2 mm; 1% oxides, to 0.3 mm; trace olivine, sieved plagioclase present in a few grains; oxide-pyroxene-plagioclase aggregates are present.

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-255758.346-154.765Unknown, UnknownSnowySouthwest cone of Snowy Mountain, lat/long from figure 2. SW Snowy volcano. Basal lava flow on basement at 4000-ft point, 3.3 km NNW of Peak 6770. SW Snowy volcano. Basal lava flow on basement at 4000-ft point, 3.3 km NNW of Peak 6770. Sample has a whole-rock K-Ar calculated age of 199 +/- 9 ka (Hildreth and others, 2001). Sample in thin section is 15% plagioclase, to 2.5 mm; 5-7% subequal amounts of clinopyroxene and orthopyroxene, to 2 mm; 1% oxides, to 0.3 mm; trace olivine, sieved plagioclase present in a few grains; oxide-pyroxene-plagioclase aggregates are present.K-2557Whole Rock 58.7 0.7 16.69 6.86 0.13 4.32 7.41 3.25 1.34 0.18 99.47889XRF6.86LOI=-0.14IGN

SAMPLE LOCATION

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Page modified: July 14, 2014 13:37
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