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SAMPLE INFO : 85CNS06
Sample ID:85CNS06
Station ID:85CNS06
Latitude:61.195368
Longitude:-151.990971
Datum:NAD83
Date Sampled:1985-01-01
Sample Type 1:Pyroclastic Flow
Sample Type 2:Pyroclast
Text Description:
Andesite pyroclast from ash flow deposit associated with flank collapse of ancestral Mt. Spurr Sample AF-06 of Nye and Turner (1990). Chem. sample from block from ash-flow tuff. Abundant. Photos. Top of section at first major bluff on Chakachatna R above confluence with Straight Cr. Matrix supported blocks to 1.5m. Blocks light-gray when fresh, weather to white in white matrix. In some places moderate sintering demonstrated by blocks breaking across block on same plane as matrix, rather than whole block separating from matrix. Orange and red-stained, fines-depleted gas escape pipes exist.

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
85CNS0661.195368-151.990971Nye, C. J.1985-01-01 SpurrAndesite pyroclast from ash flow deposit associated with flank collapse of ancestral Mt. Spurr Sample AF-06 of Nye and Turner (1990). Chem. sample from block from ash-flow tuff. Abundant. Photos. Top of section at first major bluff on Chakachatna R above confluence with Straight Cr. Matrix supported blocks to 1.5m. Blocks light-gray when fresh, weather to white in white matrix. In some places moderate sintering demonstrated by blocks breaking across block on same plane as matrix, rather than whole block separating from matrix. Orange and red-stained, fines-depleted gas escape pipes exist.85CNS06Pyroclastic FlowBombWhole-rock 62.42440126 0.577574389 17.48850899 4.808079994 0.115918071 2.328441255 5.735424563 4.445206032 1.874848803 0.201596645 13291XRF4.808079994 0.335995445 39 628 556 26 40 4.494667828 18.12860146 4.024396468 1.185589049 3.846384145 0.589035858 3.57763697 0.725436994 1.948738708 0.293938299 1.922950894 0.315565895 19 147 5.6 3.66264901 0.378441471 5 3 1.080577327 16 104 15 7 12 67 20 13291ICPMS: Cs, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, U; XRF: Rb, Ba, Sr, La, Ce, Y, Zr, Nb, Pb, Th, Sc, V, Cr, Ni, Cu, Zn, Ga;

SAMPLE LOCATION

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