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Lower cretaceous submarine rift volcanism in the Southern Transdanubia in Hungary
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Orientador(es)
Resumo(s)
In the southern part of Transdanubia during the Triassic and Jurassic times, more than 6,000 metres terrigenous, shelf and pelagic sedimentary sequences formed in a basin which was sinking with different speed.
The oldestt volcanic rocks in this territory are intercalations of basic and intermediate tuffs, found in the Lower-Liassic formation, which is characterised by very rapid sinking of the basin. These volcanoclastics are encountered as patches with thicknesses approximating some few metres. The chronology of these rocks is discussed.
The sediments following the Lower-Liassic formation are characterised by continuity till the Lower-Cretaceous, and they are free from volcanic materials.
The main volcanic activity in the area began during the Berriasian age under open pelagic conditions, and continued to the Upper-Valanginian. In the pause of the volcanic activity, during the Upper-Valanginian and Hauterivian shelf and shallow-water clastic sediments were deposited.
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Descrição
International Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980.
Palavras-chave
Volcanism Hungary
Contexto Educativo
Citação
Bilik, István (1982). Lower cretaceous submarine rift volcanism in the Southern Transdanubia in Hungary. "Arquipélago. Série Ciências da Natureza", 3: 125-126.