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首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >Mid Devonian carbonate platform development in the Holy Cross Mts. area (central Poland): new constraints from the conodont Bipennatus fauna
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Mid Devonian carbonate platform development in the Holy Cross Mts. area (central Poland): new constraints from the conodont Bipennatus fauna

机译：圣十字山中泥盆纪碳酸盐岩台地开发。地区（波兰中部）：牙形石双齿动物区系的新限制

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摘要

A unique conodont assemblage dominated by Bipennatus bipennatus montensis (WEDDIGE, 1977) was recovered from the Zachelmie Quarry (Lysogory Region of the Holy Cross Mts.) near the top of the redefined and formally established Wojciechowice Formation. The formation represents the earliest phase of Middle Devonian carbonate platform development, an extensive shallow-water shelf with a flat bottom relief and restricted dolomitic sedimentation. The conodonts allow the age of this intial phase to be constrained to the Eifelian costatus Zone. The transition to the successive coral-stromatoporoid platform phase was diachronous in the Holy Cross Mts. In the Lysogory Region this transition was probably related to the Id eustatic pulse (costatus-australis zones boundary), whereas in the Southern Region it is attributed to the latest Eifelian If transgressive event (kockelianus-ensensis zones boundary). The Bipennatus b. montensis level represents the initial marine incursion into extremely shallow-marine, intermittently exposed dolomitic mud-flats. The conodont subspecies was probably characterised by specialized palaeo-environmental requirements since it preferred not only shallow-water but also low-energy conditions on the sheltered inner shelf.
机译：在重新定义并正式建立的Wojciechowice组顶部附近的Zachelmie采石场（圣十字山的Lysogory地区），发现了一种由Bipennatus bipennatus montensis主导的独特牙形石组合（WEDDIGE，1977）。该地层代表中泥盆纪碳酸盐台地发展的最早阶段，是一个宽阔的浅水层，底部平坦的浮雕和白云岩的沉积受到限制。牙形刺使这个初始阶段的年龄被限制在伊菲尔肋骨区域。在圣十字山上，过渡到相继的珊瑚-基质多孔平台阶段是历时的。在Lysogory地区，这种转变可能与Id的欣快脉冲有关（costatus-australis区边界），而在南部地区，这归因于最新的Eifelian If海侵事件（kockelianus-ensensis区边界）。双鱼座b。 montensis水平代表了最初海洋入侵到极浅的海洋，间歇性暴露的白云质泥滩。牙形亚种可能以特殊的古环境要求为特征，因为它不仅喜欢浅水，而且喜欢在有遮盖的内部架子上的低能条件。

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