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Sample ID:08JRSCH062a
Station ID:08JRSCH062
Date Sampled:2008-08-30
Sample Type 1:Lava
Sample Type 2:Block and Ash juvenile
Field Lithology:Andesite
Final Unit:Pnba
Text Description:
radially jointed block from upper block and ash flow unit

Geologic map of Mount Chiginagak volcano, Alaska

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
08JRSCH06257.16578-157.02584Schaefer, J. R. G.2008-08-30 8000 ± 11000 40Ar/39Ar; plateau age. Recorded in table as -8kaChiginagakSame site as 04JRSCH010, but GPS location better this year 04 site location plots on ridge where helicopter landed instead of ravine where it should be. Younger block and ash overlying older block and ash and thick indurated yellow pumice layer.radially jointed block from upper block and ash flow unit08JRSCH062aLavaPnbaWhole-rock 59.30049788 0.840559756 17.65302473 6.750146264 0.147158597 3.344874385 7.383671559 3.009227841 1.405986093 0.164852896 97.2668608213271XRF6.750146264 1.478119395 29.66829158 458.744003 346.4367246 15.49506779 32.45615095 4.372111328 18.72965861 4.619416568 1.310282889 4.845738191 0.806517086 5.057804444 1.050310097 2.845304208 0.414019951 2.657804328 0.418890643 27.4697386 120.1710366 6.267660485 3.199874125 0.443036689 5.004275866 2.825774634 1.052047289 21.10845965 179.4 19.8 4.772050732 18.6 78.7 16.9 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;


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