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SAMPLE INFO : 08JRSCH051a
Sample ID:08JRSCH051a
Station ID:08JRSCH051
Latitude:57.11553
Longitude:-157.01203
Datum:NAD83
Date Sampled:2008-08-29
Sample Type 1:Lava
Field Lithology:Andesite
Final Unit:Pl
Text Description:
gray lava deposited on top of older orange hydrothermally altered rocks. Contact between orange hydrothermally altered material and these fresher looking lavas is upslope of here where the younger lavas have been eroded, exposing the orange hydrothermally altered older rocks. This outcrop is greater than 20m thick with red, pink, rubbly top somewhat preserved. Abundant light-colored inclusions.

References:
Geologic map of Mount Chiginagak volcano, 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
08JRSCH05157.11553-157.01203Schaefer, J. R. G.2008-08-29 55000 ± 8000 40Ar/39Ar; plateau ageChiginagakWest edge of south flank glacier. First lavas deposited on top of older orange hydorthermally altered rocks.gray lava deposited on top of older orange hydrothermally altered rocks. Contact between orange hydrothermally altered material and these fresher looking lavas is upslope of here where the younger lavas have been eroded, exposing the orange hydrothermally altered older rocks. This outcrop is greater than 20m thick with red, pink, rubbly top somewhat preserved. Abundant light-colored inclusions.08JRSCH051aLavaPlWhole-rock 58.83048385 0.935014081 17.31600978 7.109536362 0.158322604 3.629942031 7.333901899 3.053119106 1.435624814 0.198045478 99.0163208413271XRF7.109536362 1.289294162 30.84997062 509.0897451 423.5489761 16.63409998 36.09935581 4.758592127 19.70809645 4.774623233 1.477278941 4.623609823 0.771834275 4.721069693 0.955167861 2.694612866 0.390474993 2.510760403 0.404066089 24.80103763 131.4367622 7.938735076 3.50590329 0.504292589 4.910628225 3.263427772 1.217768106 22.23706823 198.2 23.4 6.4875408 19.6 82.3 18.4 13271ICPMS: Cs, Rb, Ba, Sr, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Zr, Nb, Hf, Ta, Pb, Th, U, Sc; XRF: V, Cr, Ni, Cu, Zn, Ga;

SAMPLE LOCATION

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