The lithographic limestones of Cerin (southern Jura Mountains, France). A synthetic approach and environmental interpretation
The lithographic limestones of Cerin (southern Jura Mountains, France). A synthetic approach and environmental interpretation
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DOI：
10.1016/j.crpv.2014.01.006
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发表时间：
2014-07-01
影响因子：
1.1
通讯作者：
Wenz, Sylvie
中科院分区：
文献类型：
--
作者：
Bernier, Paul;Barale, Georges;Wenz, Sylvie
Cerin采石场（法国南部汝拉山）的石印石灰石，在晚Kimmeridgian时代，在世纪因其质量而闻名，因此采石场被密集开采。从1975年到1994年，在这些石灰岩中进行了科学发掘，以调查沉积环境、生物埋藏及其埋藏学。收集了大量关于各种生物、不寻常的运动轨迹、微生物垫和再现结构的数据。这导致了对环境的新解释，即一个拉古纳覆盖在先前出现和侵蚀的珊瑚礁上。这个拉古纳在暴风雨期间通过临时通道与大海相连。石灰泥来自海洋和周围的紧急地区。大多数生物，包括海洋和陆地生物，都是在拉古纳中运输、捕获、混合和埋葬的。死亡后，尸体的保存有利于微生物垫的存在，提供表面缺氧条件，并保护它们免受腐烂。(C)2014年，科学院。由Elsevier Masson SAS出版。All rights reserved.
The lithographic limestones of the Cerin quarry (southern French Jura Mountains), of Late Kimmeridgian age, were famous during the 19th century for their quality and consequently the quarry was intensely exploited. From 1975 to 1994, scientific excavations were carried out in these limestones in order to investigate the depositional environment, the burial of organisms and their taphonomy. A large set of data was collected about various organisms, unusual locomotion tracks, microbial mats and emersion structures. This led to a new interpretation of the environment as a laguna overlying a previously emergent and eroded coral reef. This laguna was episodically connected to the sea by temporary channels, during storms. Lime mud was supplied both from the sea and from the surrounding emergent areas. Most organisms, both marine and terrestrial, were transported, trapped, mixed and buried in the laguna. After death, the preservation of the carcasses was favoured by the presence of microbial mats providing superficial anoxic conditions and protecting them from decaying. (C) 2014 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.