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Sample ID:91ARh-47
Station ID:91ARh-47
Date Sampled:1991-00-00
Sample Type 1:Tephra Fall
Sample Type 2:Pumice
Text Description:
Mound pumice from pumice mound of Lerbekmo and Campbell (1969). White River Ash.

Mount Churchill, Alaska: source of the late Holocene White River Ash

StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2geologic 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
91ARh-47 61.446 -141.465 Richter, D. H. 1991-00-00 1250 known unit; 187; White River Ash Churchill, Mt 803--"Mound" of Leberkmo and Campbell (1969), northeast of the summit of Churchill Mound pumice from pumice mound of Lerbekmo and Campbell (1969). White River Ash. 91ARh-47 Tephra Fall Cumulate Whole Rock 67.7 0.43 16 2.74 0.06 1.3 3.98 4.29 2.5 0.15 99.29187NN1.251.6H2OP=0.67; H2OM=0.22; CO2=0.01RAPIDARb V=64, M=NN, R=187;Sr V=890, M=NN, R=187;Ba V=890, M=NN, R=187;Ce V=32, M=NN, R=187;La V=<30, M=NN, R=187;Nb V=<10, M=NN, R=187;Zr V=170, M=NN, R=187;Y V=23, M=NN, R=187;Cu V=23, M=NN, R=187;Ni V=<10, M=NN, R=187;Zn V=50, M=NN, R=187;Cr V=<10, M=NN, R=187;


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