Acta Geologica 20. (1976)

1-2. szám

ACTA GEOLOGICA Tom. XX. Fase. 1 2. INDEX CRYSTALLOGRAPHY Dódony, I. J. Kiss: Crystal Structures and Genetical Studies on the Palygorskite Se­piolite Saponite (Montmorillonite) Group........................................................................... 1 MINERALOGY Abdel Rehim, A. М.: Conversion of Ilmenite in to Perowskite................................................... 19 Pesty, L. 0. Tomschey: Thermal Transformation of Montmorillonite under Simultaneous Load and Volatile Pressure.............................................................................................................. 31 GEOCHEMISTRY Botezatu, E. H. Weissbuch M. Grädinaru A. Saraiman: Untersuchungen über die terrestrische Komponente natürlicher Strahlung in einer Zone Rumäniens .... 39 PETROLOGY Szederkényi, T.: Barrow Type Metamorphism in the Crystalline Basement of Southeast Transdanubia ........................................................................................................................................... 47 Khalil S. O. R. Gindy A. I. Arsalan: Contribution to the Petrography, Petrochemis­try and Petrogenesis of Metabasites from Aswan Area. Egypt .......................................... 63 Abdel Waiiab. H. S.: Chemical Composition and Geochemical Evaluation of the Nubian Sandstones of Kalabsha Area. Egypt........................................................................................... 79 STRATIGRAPHY Gidai, L.: Stratigraphic and Evolutionary Analogies of the Eocene of the Parisian Basin and of NE-Transdanubia ..................................................................................................................... 93 Bérczi-Makk. A.: Biostratigraphic Significance of the Meandrospira Pusilla (MO) (Fora­­minifera) and its Distribution in Triassic Sedimentary Rocks in Hungary, as Reveal­ed by Hydrocarbon Exploring Boreholes................................................................................... 101 TECTONICS Beck-Managetta. P.: Über Bau und Entwicklung der Ostalpen mit Ausblick auf West­ungarn (Vortragsbericht) ..................................................................................................................... 125 Wein, Gy.: Die Entwicklungsgeschichte des Budaer Gebirges..................................................... 135 Fase. 3 4. SEDIM ENTOLOGY Jaskó, S.: Changes in Intensity of Salt and Coal Formation in the Neogene ........................ 161 Molnár. В. M. I. Murvai j. Hegyi-PakÓ: Recent Lacustrine Formation in the Great Hungarian Plain .................................................................................................................................... 179 KomlÓSSY, Gy.: Minéralogie, géochimie et génétique des bauxites du Vietnam du Nord . . . 199 GEOLOGY Kókay, J.: Geomechanical Investigation of the Southeastern Margin of the Bakony Moun­tains and the Age of the Litér Fault Line.................................................................................. 245 Mitchell-Thomé R. C.: Outline of the Geology of the Grand-Duché de Luxembourg .... 259 HYDROGEOLOGY Erdélyi, M.: Outlines of the Hydrodynamics and Hydrochemistry of the Pannonian Basin 287

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