Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)
Volcanics on the periphery of the Doupovské hory Mts. - a volcanological study of the Dětaň paleontological site
Abstract
Volcanologic evaluation of rocks of mostly pyroclastic origin from the famous paleontological site of Dětaň (Doupovské hory Mts., Eger Graben) brought a detailed interpretation of volcanic activity and a specification of possible paleoenvironmental conditions. In early stages, distant Plinian and close Strombolian volcanism produced pyroclastics deposited in lacustrine environment. Here, resedimentation also took place. Later on, possibly due to the increasing volume of volcanic material, the environment converted into terrestrial one. A possible relocation of Plinian volcanic centres is expected during the development. At that time, an increasing Strombolian activity can be documented. The entire volcaniclastic sequence was covered by terrestrial lavas, originating from proximal centre(s) situated opposite to the explosive ones.
