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SAMPLE INFO : 84-ARh-88
Sample ID:84-ARh-88
Station ID:84-ARh-88
Latitude:62.246
Longitude:-144.3471
Datum:NAD83
Date Sampled:1984-00-00
Sample Type 1:Lava
Sample Unit:Qsl
Text Description:
Mount Sanford lava flows (Pleistocene). Chiefly andesite flows from central shield of Sanford, shields (?) related to three subsidiary centers, and postulated Sanford caldera. Unit also includes domes, pyroclastic deposits, and a variety of shallow intrusive rocks that are exposed on south and southeast faces of Mount Sanford. Local accumulations of cinders, scoria, and bombs (stippled areas) indicate location of small parasitic vents. Lenses of light colored silicic air-fall tuff are also present.

References:
Geologic map of the Gulkana A-1 Quadrangle, south-central Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedVolcanoEruptionLocation DescriptionText DescriptionSample IDMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
84-ARh-8862.246-144.3471Richter, D. H.1984-00-00SanfordMount Sanford rocks within Gulkana A-1 quadrangle. Latitude and longitude derived from paper map.Mount Sanford lava flows (Pleistocene). Chiefly andesite flows from central shield of Sanford, shields (?) related to three subsidiary centers, and postulated Sanford caldera. Unit also includes domes, pyroclastic deposits, and a variety of shallow intrusive rocks that are exposed on south and southeast faces of Mount Sanford. Local accumulations of cinders, scoria, and bombs (stippled areas) indicate location of small parasitic vents. Lenses of light colored silicic air-fall tuff are also present.84-ARh-88Whole Rock 54.7 1.52 17.7 8.04 0.13 4.33 7.47 3.93 1.37 0.5 100.212262NN2.495.8H2OP=0.17; H2OM=0.1; CO2=0.01RAPIDA

SAMPLE LOCATION

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