TY JOUR TI Morphology and geochemistry of zircon in bentonite ash at the Paleocene-Eocene boundary in the Anthering Formation, Eastern Alps, Austria KW Zircon KW Paleocene and Eocene bentonite KW geochemistry KW Eastern Alps JO Russian Journal of Earth Sciences AU Grachev, A.F. AU Borisovsky, S.E. AU Zinger, T.F. PY 2014 IS 14 PB Geophysical Center of the Russian Academy of Sciences