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SAMPLE INFO : 86Rj018
Sample ID:86Rj018
Station ID:86Rj018
Latitude:57.0538
Longitude:-135.75938
Datum:NAD83
Sample Type 1:Tephra Fall
Sample Type 2:Accretionary Lapilli
Text Description:
Lapillus of massively bedded, black and red scoriaceous fallout lapilli adjacent to dome; slightly sintered, locally densely fused. 53.6% incipiently devitrified groundmass, 10.2% plagioclase grains (some embayed or having fretted interiors), clinopyroxene 1.3%, orthopyroxene 1.3%, macrovesicles 33.6%

References:
Pyroclastic deposits of the Mount Edgecumbe volcanic field, Southeast Alaska: eruptions of a stratified magma chamber

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final 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
86Rj01857.0538-135.75938Unknown, Unknown EdgecumbeEdgecumbe; lat/long very approximate - derived from figure in publicationLapillus of massively bedded, black and red scoriaceous fallout lapilli adjacent to dome; slightly sintered, locally densely fused. 53.6% incipiently devitrified groundmass, 10.2% plagioclase grains (some embayed or having fretted interiors), clinopyroxene 1.3%, orthopyroxene 1.3%, macrovesicles 33.6%86Rj018Tephra FallCumulateWhole-rock 60.1 0.74 17.9 5.62 0.09 2.7 6.56 4.1 0.9 0.28 99.6161XRF1.863.92H2OP=0.45; H2OM=0.12; CO2=0.51; LOI=1.02TITR: H2OP; XRF: H2OM, LOI; NN: CO2; 25 273 161XRF-EDS

SAMPLE LOCATION

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