Sample from Little Swift Lake (Axford and Kaufman 2004) (UA1784); its age overlaps with that of a prominent tephra also present in Nimgun Lake, which was not analyzed, and with all three of the lowest tephra in Sunday Pond (UA2004, UA2005, and UA2006=1787). Mixed morphology.
Late glacial and Holocene glacier and vegetation fluctuations at Little Swift Lake, Southwestern Alaska, U.S.A.
Late Quaternary tephrostratigraphy, Ahklun Mountains, SW Alaska
|StationID||Latitude||Longitude||Geologist||DateVisited||Age Info||Volcano||Eruption||Location Description||Text Description||Sample ID||Sample Type 1||Sample Type 2||Final Unit||Material||Coeff||SiO2||TiO2||Al2O3||FeOT||MnO||MgO||CaO||Na2O||K2O||P2O5||Total-majors||REF majors||METH majors||Fe2O3/Fe203T orig||FeO/FeOT orig||Volatiles csv||METH volatiles||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||V||Cr||Fe||Co||Ni||Cu||Zn||Ga||Mo||As||Na||K||Ref trace1||METH trace1||Rb||Ba||Sr||La||Ce||Nd||Sm||Eu||Gd||Dy||Er||Yb||Lu||Y||Zr||Nb||Pb||Th||U||Sc||Ti||V||Cr||Ni||Cu||Zn||Ga||Ref trace2||METH trace2||Light csv||Halogen csv||other major csv||other lile csv||other ree csv||other hfse csv||other hpe csv||other tm csv||other misc csv|
|Ahklun_Mountains_Regional_Tephra||59.6||-160.39998||Kaufman, D. S.||7995 ± 316 14C AMS; 7993; Age is approximate. Date derived from age model (using AMS dates) of Little Swift Lake, in Kaufman and others (2012).||Ahklun Mountains, southwest Alaska; glass compositions are averages calculated from analyses of multiple correlated tephra present in lacustrine cores from the area. Individual sample IDs (analyses of which contribute to the average tephra bed composition) are noted in the sample descriptions.||Sample from Little Swift Lake (Axford and Kaufman 2004) (UA1784); its age overlaps with that of a prominent tephra also present in Nimgun Lake, which was not analyzed, and with all three of the lowest tephra in Sunday Pond (UA2004, UA2005, and UA2006=1787). Mixed morphology.||Ahklun Mountains-LS-8ka-Tephra_average||Tephra Fall||Cumulate||Glass||67.05||0.83||15.1||5.25||0.17||0.91||2.97||5||2.56||7993||EMP||5.25||Cl=0.16; H2O=3.95||EMP|
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G19AC00060 and G19AC00171.
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.