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SAMPLE INFO : 83RJ284
Sample ID:83RJ284
Station ID:83Rj284
Latitude:57.052542
Longitude:-135.759936
Datum:NAD83
Date Sampled:1983-01-01
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
83Rj28457.052542-135.759936Unknown, Unknown1983-01-01 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%83RJ284Tephra FallCumulateWhole-rock 59.5 0.73 17.7 5.85 0.1 3.48 6.74 4.13 0.91 0.28 100.3161XRF3.72.54LOI=0.61XRF

SAMPLE LOCATION

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