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Central European Geology
Authors: Ádám Bede, Roderick B. Salisbury, András István Csathó, Péter Czukor, Dávid Gergely Páll, Gábor Szilágyi, and Pál Sümegi

Studies. An Environmental and Archaeological Multiproxy Study of Burial Mounds in the Eurasian Steppe Zone . British Archaeological Reports, International Series 2238, Archaeopress , Oxford , pp. 71 – 131

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Sideritic—kaolinitic and green clay layers were previously reported from the Mecsek Mountains (SW Hungary) as indicators of Tethyan volcanism in the otherwise germanotype Middle Triassic succession. The aim of the present study is to provide a review and a critical re-evaluation of the previously published data on both the sideritic—kaolinitic layers (the so-called “Mánfa Siderite”) and the green clay layers. New results of mineralogical investigation of the green clay layers are also presented. The Middle Triassic volcanic origin of the “Mánfa Siderite” cannot be confirmed. In addition to a possible volcanic contribution, the sideritic—kaolinitic layers were probably formed in a freshwater swamp under humid, tropical climatic conditions, whereby weathering in an organic-rich, acidic environment led to the formation of “underclays” and siderite in the coal-bearing formations of Late Triassic to Early Jurassic age. These layers were probably tectonically placed over Middle Triassic carbonates. The illitic green clay layers intercalated in the Middle Triassic dolostone may represent terrigenous deposits, and the illite mineralogy probably is the result of burial diagenesis of detrital clays.

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migration, it is suggested that the carbonaceous material records the maximum temperature reached during burial, and the large pyrite crystals grew in the course of the uplift following oil migration to the reservoir. There are several subsequent

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well as on burial and watch mounds ( Zólyomi 1969 ; Tóth 1998 ; Csathó 2009 ; Penksza et al. 2011 ; Balázs and Kustár 2012 ; Bede et al. 2014 , 2015 ; Csathó et al. 2015 ; Deák et al. 2015 ). These mounds have a one ha surface area on

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Central European Geology
Authors: István Vető, Katalin Báldi, Stjepan Ćorić, Magdolna Hetényi, Attila Demény, and István Futó

pot decreased during late burial. Preliminary studies ( Vető et al. 2010 ; Badics and Vető 2012 ) revealed that the Nagygörbő 1 (Ng 1) scientific well, cored at the northeastern margin of the Zala Basin (for location see Fig.  1 ), penetrated

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. To explore whether different eggshell morphotypes show distinct chemical composition due to potential differences in taphonomic history, burial conditions, or diagenesis, element composition and distribution in the eggshell fragments were investigated

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 al. ( 2013b ) have provided mineralogical evidence of the alterations caused by deep burial diagenesis or early metamorphism in the ore-bearing rocks at Rudabánya. These data underline the similarity of Rudabánya and several copper deposits of the Gemerids of

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. 2003 : Alpine burial history of the Mórágy Block and its environs . – Annual Report of the Geological Institute of Hungary , 2003 , pp. 395 – 406 . Dabi , G

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Central European Geology
Authors: János Haas, Tamás Budai, István Dunkl, Éva Farics, Sándor Józsa, Szilvia Kövér, Annette E. Götz, Olga Piros, and Péter Szeitz

microbial mats where synsedimentary organogenic dolomite formation may have taken place. It was followed by near-surface replacive dolomitization producing finely crystalline dolomite. Replacive dolomitization in intermediate burial setting produced medium

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