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SAMPLE INFO : 72-ARh-315
Sample ID:72-ARh-315
Station ID:72-ARh-315
Latitude:62.0776
Longitude:-143.4732
Datum:NAD83
Date Sampled:1972-00-00
Sample Type 1:Lava
Field Lithology:Rhyolite
Text Description:
Rhyolite cinder cone and nuee ardente deposits. Cinder cone consists chiefly of unconsolidated rubble of dense glassy blocks, pumiceous scoria, and lapilli. Nuee ardente deposits composed largely of bread-crust blocks in a matrix of unconsolidated ash and lapilli. Rocks are buff to light gray and contain rare small hypersthene and plagioclase phenocrysts in a plagioclase-rich hyalopilitic or glass matrix.

References:
Geologic map of the Nabesna A-5 quadrangle, 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
72-ARh-31562.0776-143.4732Richter, D. H.1972-00-00 JarvisNabesna A-5 quadrangle; Wrangell Lava; Wrangell Volcanic Field. lat long points derived from paper map. Sample from Jarvis.Rhyolite cinder cone and nuee ardente deposits. Cinder cone consists chiefly of unconsolidated rubble of dense glassy blocks, pumiceous scoria, and lapilli. Nuee ardente deposits composed largely of bread-crust blocks in a matrix of unconsolidated ash and lapilli. Rocks are buff to light gray and contain rare small hypersthene and plagioclase phenocrysts in a plagioclase-rich hyalopilitic or glass matrix.72-ARh-315LavaWhole-rock 71.9 0.24 14.9 1.6 0.06 0.43 1.5 4.5 2.8 0.08 99.494537RAPIDA0.61.1H2O=1.88RAPIDA

SAMPLE LOCATION

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