The geologic key section at the northwestern margin of the village of Bódvalenke represents the stratotype of the Triassic Bódvalenke Limestone Formation and can be considered as the type section of the Bódva Unit of the Rudabánya Hills. The age of the exposed part of the formation in the type section ranges from the Late Anisian (Gondolella constricta cornuta partial range zone) to the early Late Carnian (Gondolella polygnathiformis interval zone). Its typical variety consists of purplish red to pinkish, strongly chertified, thinly-bedded micritic limestone, with frequent intercalations of mmthick purplish red shale layers and whitish-gray coquina beds. These beds are made up of tiny shells of Posydonia-like juvenile bivalves, often showing gradation. This deep water facies represents the transition between Hallstatt Limestone and red radiolarite. This facies type occurs from Oman via southern Turkey throughout the western ophiolite belt of the Hellenides-Dinarides until the Zagorje region in NW Croatia. Its northernmost, displaced occurrence is known in the Rudabánya Hills, NE Hungary, from where the type section is described and illustrated herein.
In this paper the authors publish a new sarcophagus from Tatabánya found in 1989. The funerary inscription was erected to a tesserarius who served in the legio I adiutrix in Brigetio and other living members of the family by his half-brother. Based on the names the stemma of the family can be restored. The tesserarius was depicted on the frontal side with the hastile of the optiones in his hand. Based on the text, the palaeography and the rich decorated sarcophagus, it can be dated to the 2nd half of the 3rd century and it was made in a local workshop in Brigetio.
The Mid-Hungarian Zone is a WSW-ENE trending composite structural unit in the basement of the Pannonian Basin that is made up of displaced crustal fragments (terranes) of South Alpine and Dinaridic origin. In the early stage of the Alpine evolution these fragments were located in various sectors of the NW Neotethys region, representing different paleogeographic settings from passive margin through continental slope to oceanic basement. Middle to Late Jurassic closure of the Neotethys led to the development of a suture zone made up of subduction-related complexes that can be followed all along the strike of the Dinarides. During the Cretaceous compressional stages, nappe stacks were formed from the accretionary complex and the fragments of the previously disrupted passive margin. Eastward extrusion (escape) of the ALCAPA Mega-unit during the Oligocene to Early Miocene led to large-scale displacement of fragments of this nappe stack, transporting them to their present-day position, and resulted in dispersal of the northwestern segment of the suture zone. The paper summarizes the basic characteristics of the dislocated blocks, evaluates their relationships and determines their original setting.
Authors:Sándor Kovács and Erzsébet Rálisch-Felgenhauer
Kovács and Papšová (1986) described a Pelsonian conodont fauna from the base of the Misina Hill key geologic section (Mecsek Mts, South Hungary), extracted from the host-rock of a Schreyerites? binodosus specimen published by Detre (1973). In the present paper the conodont fauna of the entire key section is described on the basis of 26 samples (from No. Bh-1 to Bh-26). A detailed taxonomic review of Gondolella bulgarica, G. hanbulogi and G. bifurcata is given, which are distinguished at species level (following the detailed morphotaxonomic study by Germani 2000), although all morphological transitions between the three taxa are present. They are united into the "G. bulgarica Group". Correlated with the Pelsonian type sections in the Balaton Highland (Aszófo, Felsoörs), the entire exposed sections of the Bertalanhegy and Dömörkapu Limestone Members belong to the upper part of the Pelsonian, e.g. to the Binodosus Zone. The Illyrian evaporitic "Middle Muschelkalk" event appears to be represented by a hiatus in the Mecsek "Muschelkalk" succession.
Authors:Sándor Kovács, Erzsébet Rálisch-Felgenhauer, and József Bóna
The conodont fauna published by Bóna (1976) from the Triassic of Villány Hills has been revised. It contains an association of Gondolella bifurcata, G. bulgarica and G. hanbulogi, the same as from coeval basinal deposits of the adjacent Mecsek Hills (Kovács and Rálisch-Felgenhauer, this volume), thus the Upper Pelsonian age assignment by Bóna (1976) is confirmed.
Authors:Dražen Balen, János Haas, and Sándor Kovács
The present issue is devoted to the memory of Professor Jakob Pamić, who for a long time, until his death, was a very active member of the Advisory Board of the Acta Geologica Hungarica and provided great efforts toward a better understanding of the geology of the Pannonian Basin and the surrounding mountain ranges.
Authors:Bence Somoskői, Melinda Kovács, and Sándor Cseh
The mycotoxin T-2 has many harmful effects on mammalian cells and reproductive functions. In the present study, the in vitro effect of T-2 toxin on mouse blastocysts was examined. Embryos were cultured in media supplemented with 0.5, 0.75 and 1 ng/ml T-2. Different exposure times were applied [96 h (treatment I) or 24 h following 72 h in toxin-free media (treatment II)]. Blastomere number, nuclear chromatin status and blastocoel formation were investigated in blastocysts. Our data show that the effect of T-2 toxin may vary depending on the stage of the embryo at the start of exposure. At 96 h of exposure, the blastocysts had blastomeres with normal chromatin quality but their developmental potential was decreased. After 24 h of exposure applied following a 72-h culture, blastomeres had a higher level of chromatin damage, although their developmental potential was the same as in the control embryos. In both cases, decreased mitotic rate was found, which resulted in decreased blastomere number even at low toxin concentration.