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SAMPLE INFO : AC-20
Sample ID:AC-20
Station ID:AC-20
Latitude:56.91589903
Longitude:-158.0687354
Datum:NAD83
Date Sampled:1997-01-01
Sample Type 1:Tephra Fall
Final Unit:Qbn
Text Description:
dark brown pumice block from 1m above base of top portion of main plinian fall

References:
The physical volcanology and petrology of the 3400 YBP caldera-forming eruption of Aniakchak Volcano, Alaska
Postglacial eruptive history, geochemistry, and recent seismicity of Aniakchak Volcano, Alaska

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
AC-2056.91589903-158.0687354Dreher, S. T.1997-01-01 AniakchakCaldera rim north of The Gates; Dreher loc 1dark brown pumice block from 1m above base of top portion of main plinian fallAC-20Tephra FallCumulateQbnWhole-rock 67.2 0.88 15.32 4.3 0.17 1.02 2.94 5.2 2.75 0.23 98.94658XRF0.713.66 2.909286526 62.15206932 800.3925885 258.7957498 25.95760473 56.36174477 7.510804683 31.59760702 8.011068722 2.11054345 8.167423498 1.354928013 8.488211577 1.755074903 4.80320818 0.729185198 4.57805351 0.744460757 46.26476249 240.9725811 14.11813244 6.382438733 0.956193561 8.402300319 5.885953792 2.573811549 14.72439058 658ICPMS

SAMPLE LOCATION

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