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The AAPG/Datapages Combined Publications Database

CSPG Special Publications

Abstract


Intl. Symposium of the Devonian system: Papers, Volume II, 1967
Pages 1283-1296
Faunal Provinces and Palaeogeography

Environment and Palaeogeography of the Devonian in the area of the Berga Anticline, Thuringia, Germany

Reinhold Grabe, Gerhard Schlegel, Kurt Wucher

Abstract

The sedimentary basin in East Thuringia and the Vogtland persisted from the Ordovician to the Middle Devonian. The first sedimentary rhythm began in the Ordovician and ended with the Tentaculite limestone (lowermost Devonian). The supply area for the clastic material was located to the southeast.

A new rhythm began with the higher Lower Devonian and persisted to the Middle Devonian. It includes the Tentaculite slate and the Nereite quartzite. The source area was still situated to the southeast.

A third sedimentary rhythm began at the end of the Middle Devonian. The basin was divided by sills into a series of individual are deposited near the sills while greywackes and arkoses occur nearer the basins. Clastic sedimentation continued around the sills in the higher Frasnian, the clastic formations interfinger with volcanites and tuffites towards the basins. Conditioned by different volcanic accumulations an intensely differentiated relief basins by movements which started during the Reussian phase. At the beginning of the Late Devonian, granitic conglomerates was present at the end of the volcanism. Pelites are derived from the former sills and individual small high-lying sills in the basins; and a source area to the southeast is also taken into consideration. In the lowermost Carboniferous the sedimentation stops due to the beginning of intense crustal movements.


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