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SAMPLE INFO : AVO-PAT_NC
Sample ID:AVO-PAT_NC
Station ID:Swanson_95_AVO-PAT
Latitude:61.19
Longitude:-149.8
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
Brown ash sample collected over timed intervals (about 30 to 60 minutes) as the ash fell on the patio of the Alaska Volcano Observatory. Most of the ash fell during a period of about 3 hours. Ash consists of dense, dark volcanic rock fragments with phenocrysts of plagioclase, pyroxene, hornblende, and FeTi oxides in a matrix of brown glass rich in microlites.

References:
Use of volcanic glass from ash as a monitoring tool: an example from the 1992 eruptions of Crater Peak, Mount Spurr volcano, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final UnitMaterialCoeffSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
Swanson_95_AVO-PAT61.19-149.8Swanson, S. E. 1992 historical - observed; 2125; 1992-8-18Samples collected on a patio at Alaska Volcano Observatory at Gould Hall in Anchorage. 124 km downwind from the volcano.Brown ash sample collected over timed intervals (about 30 to 60 minutes) as the ash fell on the patio of the Alaska Volcano Observatory. Most of the ash fell during a period of about 3 hours. Ash consists of dense, dark volcanic rock fragments with phenocrysts of plagioclase, pyroxene, hornblende, and FeTi oxides in a matrix of brown glass rich in microlites.AVO-PAT_NCTephra FallCumulateGlass 76.2 0.35 12.6 2.3 0.46 0.91 3.06 4.08 99.642125EMP2.3Cl=0.02EMP

SAMPLE LOCATION

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