TephraKam: geochemical database of glass compositions in tephra and welded tuffs from the Kamchatka volcanic arc (northwestern Pacific)

by M. V. Portnyagin, M. V. Portnyagin, V. V. Ponomareva, E. A. Zelenin, L. I. Bazanova, M. M. Pevzner, A. A. Plechova, A. N. Rogozin, D. Garbe-Schönberg
Published 2020-02-01

Volcanic ash layers in Lake El'gygytgyn: eight new regionally significant chronostratigraphic markers for western Beringia

by C. van den Bogaard, B. J. L. Jensen, N. J. G. Pearce, D. G. Froese, M. V. Portnyagin, V. V. Ponomareva, V. Wennrich
Published 2014-05-01