K/Ar age of manganese oxide ores of Úrkút, Hungary: Ar retention in K-bearing Mn minerals

by Grasselly, Gyula, Balogh, Kadosa, Polgári, Márta, Tóth, Mária
Source: 1. Geologica Carpathica 1. 0016-7738 1. Roč. 45, č. 6(1994), dát. december, s. 365-373

Contributions to the clay mineralization and zeolitization of the Miocene tuffs in the Mescek Mts., Hungary

by Fórizs, István, Máthé, Zoltán, Polgári, Márta, Tóth, Mária
Source: 1. Geologica Carpathica Clays 1. 1210-2695 1. Roč. 6, č. 1(1997), s. 47-55