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SAMPLE INFO : 85CNS46
Sample ID:85CNS46
Station ID:85CNS46
Latitude:61.213268
Longitude:-152.205908
Datum:NAD83
Date Sampled:1985-01-01
Sample Type 1:Lava
Sample Type 2:Block and Ash juvenile
Text Description:
Sample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan”; sample PF-46 of Nye and Turner (1990)). Ash flow in Chakachatna canyon just west of camp. Tuff has gray lower part, with pink, then white, upper part. Inequigranular plag and small px. Tuff is surrounded by blocky fresh-looking andesite flow. Tuff is plastered against andesite flow. Both are overlain by fragmental, probably glacial, unconsolidated unit.

General Mineralogy Description:
Inequigranular plag and small px.

References:
Petrology, geochemistry, and age of the Spurr volcanic complex, eastern Aleutian arc
Geochemistry of some Quaternary lavas from the Aleutian Arc and Mt. Wrangell

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
85CNS4661.213268-152.205908Nye, C. J.1985-01-01 SpurrSample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan”; sample PF-46 of Nye and Turner (1990)). Ash flow in Chakachatna canyon just west of camp. Tuff has gray lower part, with pink, then white, upper part. Inequigranular plag and small px. Tuff is surrounded by blocky fresh-looking andesite flow. Tuff is plastered against andesite flow. Both are overlain by fragmental, probably glacial, unconsolidated unit.85CNS46LavaWhole-rock 56.15 0.835 18.89 0.156 3.93 8.29 3.68 0.937 0.192 100.3213291XRF6.94 0.159464908 17.91305108 314 0 9 25 3.082621473 14.01347013 3.736468243 1.210210922 3.743743083 0.596333725 3.844181208 0.799679393 2.148434831 0.317548266 2.037213641 0.320638518 20.56116725 0 3.958540575 2.365214019 0.278983045 3 4 0.520683429 27 231 11 0 6 89 19 13291ICPMS: Cs, Rb, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Nb, Hf, Ta, U; XRF: Ba, La, Ce, Pb, Th, Sc, V, Cr, Cu, Zn, Ga;
85CNS4661.213268-152.205908Nye, C. J.1985-01-01 SpurrSample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan”; sample PF-46 of Nye and Turner (1990)). Ash flow in Chakachatna canyon just west of camp. Tuff has gray lower part, with pink, then white, upper part. Inequigranular plag and small px. Tuff is surrounded by blocky fresh-looking andesite flow. Tuff is plastered against andesite flow. Both are overlain by fragmental, probably glacial, unconsolidated unit.85CNS46LavaWhole-rock 56.13 0.82 19.05 7.26 0.16 3.9 8.29 3.23 0.96 0.21 100.431580XRF7.26LOI=0.46XRF 16.6 562 18.8 89 5.9 8 1580XRF

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