Acta Geologica 9. (1965)

1-2. szám

Szőke, A.: Pétrographie du massif subvolcanique de Toroiaga (Carpates Orientales R. S. Roumaine)..................................................................................... 271 Vidacs, A.: Die Rolle des helvetisch-tortonischen Dazittuffhorizons im neovulkanischen, innerkarpatischen Bereich ....................................................................................................... 293 Horusitzky, F.: Die Chronologie der tertiären Pyroklastite Ungarns ................................ 297 GEOCHIMIA JL H. Овчинников—M. В. Панова—Ф. Л. Шангареев: Абсолютный возраст некоторых геологических образований Венгрии ................................................................ 305 Szádeczky-Kardoss, Е. —Grasselly, Gy.: On the Present Stage of Development of the Potential Concept in Geochemistry.............................................................................................. 313 Grasselly, Gy.: Confrontation of Complex Anionic Potentials and Compound Potentials with Thermochemical Data................. 329 GEOLÓGIA Erdélyi, M.: Geological Studies in the Halimba Basin ............................................................... 339 Somos, L.: A Geological Description of the Upper Triassic and of the Coal Bearing Lower Liassic Complex of the Mecsek Mountains.............................................................................. 363 Szatmári, P.: Contribution to the Knowledge of the Origin of Upper Pannonian Quartz Sand in Hungary ...............................................я................................................................................. 375 STRATIGRAP HIA Benko-Czabalay, L.: Situation paléogéographique de la faune de Mollusques du Sénonien de la Hongrie....................................................................................................................... 391 Kopek, G. —Kecskeméti, T. —Dudich, E. jr.: Stratigraphische Probleme des Eozäns im Transdanubischen Mittelgebirge Ungarns ........................................................................ 411 HYDROLOGIA Bélteky, L.: The Problems of Depth Water Reserve Economy in Hungary ................. 427 Rónai, A.: Subsurface Waters in Deep Quaternary Basins ........................................................ 433 Schmidt, E. R.: Hydrogeological Conditions in Hungary................................................................ 443

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