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SAMPLE INFO : 74AMm89
Sample ID:74AMm89
Station ID:74AMm89
Latitude:62.006
Longitude:-144.61498
Datum:NAD83
Date Sampled:1974-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Dacite
Text Description:
Thin to thick flows of dacite and andesite (?). Visited only massive two-pyroxene dacite flow of probable Mount Wrangell affinity, exposed in tributary of Dadina River (loc. 29, sec. 26, T. 3 N., R. 4 E.) Rock is medium gray and locally vesicular and contains phenocrysts (2-5 mm) of abundant plagioclase and hypersthene and rare to common augite and olivine in an intersertal to intergranular groundmass.

References:
Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex

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
74AMm8962.006-144.61498Miller, T. P.1974-00-00 DrumWrangell Lava, Mount Drum, AlaskaThin to thick flows of dacite and andesite (?). Visited only massive two-pyroxene dacite flow of probable Mount Wrangell affinity, exposed in tributary of Dadina River (loc. 29, sec. 26, T. 3 N., R. 4 E.) Rock is medium gray and locally vesicular and contains phenocrysts (2-5 mm) of abundant plagioclase and hypersthene and rare to common augite and olivine in an intersertal to intergranular groundmass.74AMm89LavaWhole-rock 61.3 0.91 16.13 5.25 0.09 3.54 5.7 3.78 2.34 0.19 100.2555DCP5.815.25LOI=0.74DCP 654 557 21 212 16 171 65 47 58 66 55DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; XRF: Zr, Ni;

SAMPLE LOCATION

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