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首页> 外文期刊>Geologica Carpathica >Calpionellid biostratigraphy and microfacies of the Upper Tithonian pelagic carbonates in northeastern Serbia (Carpatho-Balkanides)
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Calpionellid biostratigraphy and microfacies of the Upper Tithonian pelagic carbonates in northeastern Serbia (Carpatho-Balkanides)

机译：塞尔维亚东北部（Carpatho-Balkanides）的CalpioneLlid生物灰质碳酸咖啡酯

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摘要

The occurrence of microfossil assemblage represented by calpionellids in close association with benthic foraminifera and encrusting Crescentiella morronensis is reported for the first time from the Upper Tithonian of NE Serbia. The biostratigraphic and sedimentological investigations were carried out on a 250 m thick carbonate succession in Jelenska Stena quarry cropping out along the Danube River Gorge in the border area of Serbian Carpatho-Balkanides and Romanian Southern Carphatians. On the basis of determined benthic foraminiferal taxa Textularia sp. cf. T bettenstaedti and Everticyclammina praekelleri in the lower part of the succession and calpionellid association dominated by the representatives of calpionellid genera Tintinnopsella, Crassicollaria and Calpionella the carbonate succession is assigned to the Upper Tithonian. The scarcity of calpionellid zonal species prevents the nominal zones being recognized. Petrographic analysis of thin-sections led to the recognition of three basin microfacies types: bioclastic wackestone, bioclastic peloidal wackestone/packstone and mudstone. These microfacies characterize the SMF 3 and SMF 4 which indicate deposition in slope and toe-of-slope environments. This study extends the palaeogeographical distribution of Upper Tithonian calpionellids along the northern Tethyan margins. The investigated carbonate succession is compared with coeval strata from other northern Tethyan regions.
机译：从Ne Serbia的上部Tithonian首次，第一次据报道，钙硫胺与骨髓蛋白酶密切相关的CalpionEllids代表的MicroTOSIL组合的发生。生物数据和沉积学研究是在Jelenska Stena Quarry的250米厚的碳酸盐继承中进行，沿着多瑙河峡谷射出塞尔维亚·帕尔纳尔纳尔纳和罗马尼亚南食家的边境地区。基于确定的底栖传染术分类基因型SP。 CF. T Bettenstaedti和EvertoticyClammina Praekeller在继承和Calpionellid协会的下半部分，由Calpionellid属Tintinnopsella，Crassicollaria和Calpionella代表主导的碳酸盐连续的碳酸盐替代型成功。 Calpionellid区内物种的稀缺性阻止了所公认的标称区域。薄膜的岩体分析导致了三种盆种微腐蚀类型的识别：生物旋涡疣，生物旋涡盆地/包装石和泥岩。这些微缩放表征SMF 3和SMF 4，其表示斜坡和脚趾环境中的沉积。本研究扩展了沿着北极山边缘北部的上衣Calpionellids的古地图分布。将研究的碳酸酯连续与来自Tethyan地区其他北部地区的群体地层进行比较。

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