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Sample ID:08JRSCH062d
Station ID:08JRSCH062
Date Sampled:2008-08-30
Sample Type 1:Tephra Fall
Sample Type 2:Pumice
Field Lithology:Dacite
Final Unit:Pnp
Text Description:
indurated pale yellow pumice. 2-5cm size clasts. Angular to sub-rounded. Clast supported.

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 ChiginagakSame 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.indurated pale yellow pumice. 2-5cm size clasts. Angular to sub-rounded. Clast supported.08JRSCH062dTephra FallCumulatePnpWhole-rock 62.09064477 0.771020721 17.641901 6.011879508 0.14028695 2.451889667 6.401244643 2.78140668 1.536068069 0.173657991 95.962193613271XRF6.011879508 1.930013442 33.98086894 529.3101216 338.5486996 15.47602288 33.58050219 4.387043852 18.17332507 4.371913901 1.292893658 4.529238882 0.752532108 4.642031332 0.983898294 2.705375049 0.405126108 2.5638679 0.421703736 25.37957239 132.0198213 7.225600351 3.507866209 0.503660016 5.693456896 3.111852736 1.118431122 15.11946909 128.9 6.6 1.247952998 13.6 72.3 16.1 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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