Acta Geologica 29. (1986)

1-2. szám

Acta Geologica Hungarica Vol. 29 1-2 CONTENTS WORKING GROUP FOR THE JURASSIC/CRETACEOUS BOUNDARY Meeting held at Sümeg 18—21 Sept. 1984, Hungary Agreement on the subdivision of the standard calpionellid zones defined at the lies Planktonic Conference, Roma 1970. J. Remane, D. Bakalova-Ivanova, K. Borza, J. Knauer, I. Nagy, G. Pop E. Tardi-Filácz ............................................................................. 5 Calpionellids and the Jurassic-Cretaceous boundary. J. Remane ................................................ 15 Comments on a tentative correlation chart for the most important marine provinces at the Jurassic/Cretaceous boundary. A. Zeiss............................................................................... 27 Provability and characteristics of calpionellidae zones in the Transdanubian Central Range. J. Knauer................................................................................................................................... 31 Investigation of Calpionellidea remnants from the Tithonian-Rerriasian basic profiles of Tata and Sümeg. E. Tardi-Filácz ................................................................................................... 37 Investigation of Calpionellides from the Mecsek Mountains (S. Hungary). I. Nagy............ 45 Biostratigraphy of the Jurassic/Cretaceous boundary beds in the profile Közöskút Ravine II at Hárskút. A. Horváth, J. Knauer ......................................................................................... 65 Peculiarities of the Calpionella Zone in Bulgaria. D. Bakalova-Ivanova..................................... 89 Fossil calpionellids and correlation of Tithonian-Valanginian formations. G. Pop .............. 93 Foraminiferal, ostracod and calpionellid biozonations across the Jurassic-Cretaceous boundary on the Atlantic Margin of North America. P. Ascoli....................................... 103 Biostratigraphic study of calpionellids and nannofossils in the Tethyan realm (Spain, Sicily, SE France) in Late Jurassic and Berriasian time: a correlation with magneto­stratigraphic results, if. Manivil, B. Galbrun, P. De Wever, J. Azema........................ 105 The problems of correlation between magnetozones and calpionellid zones in Late Jurassic-Early Cretaceous sections. E. Márton........................................................................................... 125 Problems with delimitation of the Jurassic/Cretaceous boundary in the Western Car­pathians. K. Borza, J. Michalik .....................................................................................................133 Mediterranean ammonites and the Jurassic-Cretaceous boundary in Southern Spain (Subbetic Zone). J. M. Tavera, F. Oloriz, M. Company, A. Checa.................................. 151 Last records of “Aspidoceras” in the Mediterranean. A. Checa, F. Oloriz, J. M. Tavera . 161 BOOK REVIEWS Proterozoic Geology. Selected Papers from an International Proterozoic Symposium. Editors: L. G. Medaris, Jr., D. M. Mickelson, C. W. Byers and W. C. Shanka. O. Tomschey ............................................................................................................................................. 169 Early Proterozoic Geology of the Great Lakes Region. Ed. L. G. Medaris Jr., O. Tomschey The Northern Light — from Mythology to Space Research. Brekke, Ageir, Egeland. Alv. L. Bartha jr....................................................................................................................................... 170 Oceanography — The Present and Future. Ed.: P. G. Brewer. 0. Tomschey ........................ 170 Zeitschrift der Deutschen Geologischen Gesellschaft. Band. 135. 0. Tomschey ...................... 172

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