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SAMPLE INFO : 286
Sample ID:286
Station ID:286
Latitude:58.3
Longitude:-154.9
Datum:NAD83
Sample Type 1:Lava
Sample Type 2:Dike
Text Description:
From a dike about 30 feet thick, forming a noticeable 'spire' jutting up from sediments on top of the ridge east of Knife Peak Volcano. The rock is greenish gray feldspar-hornblende andesite-porphyry. Relations in the vicinity suggest that it is an offshoot from a large laccolith to the north.

References:
The Katmai magmatic province

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation 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
28658.3-154.9Fenner, C. N. Top of the ridge east of Knife Peak Volcano (Griggs)From a dike about 30 feet thick, forming a noticeable 'spire' jutting up from sediments on top of the ridge east of Knife Peak Volcano. The rock is greenish gray feldspar-hornblende andesite-porphyry. Relations in the vicinity suggest that it is an offshoot from a large laccolith to the north.286Whole Rock 58.75 0.54 16.2 5.5 0.08 3.8 6.23 3.45 1.29 0.35 100.151176NN3.072.74H2OP=2.42; H2OM=0.81; CO2=0.37NNCl V=0.05, M=NN, R=1176;SO3 V=0.09, M=NN, R=1176;

SAMPLE LOCATION

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Page modified: July 14, 2014 13:37
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