文章基本信息

标题：Depositional setting of the Devonian/Carboniferous biohermal Bol’shaya Nadota Carbonate Complex, Subpolar Urals
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作者：Stanisław Skompski ; Mariusz Paszkowski ; Michał Krobicki 等
期刊名称：Acta geologica Polonica
印刷版ISSN：0001-5709
出版年度：2001
卷号：51
期号：3
页码：217-235
语种：English
出版社：Institute of Geology, University of Warsaw
摘要：Multi-stage development of carbonate buildups has been recognised in the Bol’shaya Nadota Carbonate Complex, in the vicinity of the town of Inta (Subpolar Urals). The growth of typical stromatoporoid-coral bioherms, characteristic of the Middle-Late Devonian stage, was terminated by the appearance of the shallow water oolitic facies, most probably at the beginning of the Famennian. During the Viséan stage the carbonate platform was reconstructed, but algal-brachiopod-coral bioherms were characterized by relatively small dimensions and an interfingering with organodetrital-oolitic facies. Sporadically, the inter-mound facies is represented by goniatite-bivalve coquinas with two new goniatite species: Goniatites olysya sp.nov. and Lusitanoceras kusinae sp.nov.The persistence of biohermal sedimentation in the Bol’shaya Nadota area is most probably caused by the specific position of the region on the boundary of two sedimentary-structural units: Lemva and Elets Zones, which corresponded to a basinal and a tectonically-active elevated part of a platform margin respectively.The overall biotic composition of the Carboniferous bioherms from Bol’shaya Nadota, situated in the northern periphery of Laurussia, falls generally within the diversity spectrum of Lower Carboniferous mounds described from the southern margin of the continent.
关键词：Devonian;Carboniferous;Carbonate buildups;Subpolar Urals