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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 "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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