Conodont Biostratigraphic Constraint on the Lower Taiyuan Formation in Southern North China and Its Paleogeographic Implications
Conodont Biostratigraphic Constraint on the Lower Taiyuan Formation in Southern North China and Its Paleogeographic Implications
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华北南部太原组下牙形刺生物地层约束及其古地理意义
DOI：
10.1007/s12583-021-1526-8
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发表时间：
2022-12
影响因子：
3.3
通讯作者：
Ma Rui
中科院分区：
文献类型：
--
作者：
Wang Yuan;Yang Jianghai;Yuan Dongxun;Liu Jia;Ma Rui
华北晚古生代太原组主要为一套浅海碳酸盐岩与陆源碎屑岩的混合沉积。其基底石灰岩的形成时间为晚宾夕法尼亚世至早二叠世。为进一步确定太原组底部的时代，在河南省两个剖面的太原组底部灰岩中，共获得牙形石2属16种。区系包括Idiognathodus hebeiensis、Streptognathodus isolatus、S. elongatus，S.cf.longus，S. acuminatus、S.cf.recreatus、S.cf.cristellaris、S. cf. bellus，S. invaginatus，S. wabaunsensis，S. glenisteri，S. conjuncitus，S. binodosus、S. fuchengensis，S. nodulinearis和S.sp..一个以Streptognathodus为主的牙形石组合，含有一些Idiognathodus成分。指出南华北地区太原组最低层的时代为盖勒晚期（最晚宾夕法尼亚期）。这与最近发表的高精度锆石U-Pb年龄灰层。根据牙形石生物地层学，河南太原组底部灰岩可与山西太原组庙沟上部灰岩对比。这种相关性可能反映了华北海平面的显著上升，可能对应于二叠纪-石炭纪过渡期的冰消事件。
The Late Paleozoic Taiyuan Formation in North China is mainly composed of a mixed shallow-marine carbonate and terrigenous clastic deposits. Its basal limestones have been constrained in the late Pennsylvanian to Early Permian. To further constrain the age of the lowest Taiyuan Formation, we obtained two genera and 16 species of conodonts from the bottom limestones of the Taiyuan Formation in two sections in Henan Province, southern North China. The fauna includesIdiognathodus hebeiensis,Streptognathodus isolatus,S. elongatus,S.cf.longus,S. acuminatus,S.cf.recreatus,S.cf.cristellaris,S. bellus,S. invaginatus,S. wabaunsensis,S. glenisteri,S. conjunctus,S. binodosus,S. fuchengensis,S. nodulinearis, andS.sp. A genus ofStreptognathodusdominated conodont assemblage with some Idiognathodus elements. It indicates a late Gzhelian (latest Pennsylvanian) age for the lowest Taiyuan Formation in southern North China. This is consistent with recently published high-precision zircon U-Pb ages from ash layers. Based on conodont biostratigraphy, the basal limestones of the Taiyuan Formation in Henan Province (southern North China) can be correlated with the upper part of Miaogou limestones of the Taiyuan Formation in Shanxi Province (northern North China). This correlation might reflect a significant sea-level rise in North China, possibly corresponding to a deglaciation event at the Permo-Carboniferous transition.
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影响因子：
3.3
作者：
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影响因子：
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作者：
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DOI：
10.1016/j.palaeo.2016.07.038
发表时间：
2017-05
期刊：
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子：
--
作者：
Chao Liu;Emilia Jarochowska;Yuansheng Du
通讯作者：
Yuansheng Du
DOI：
10.3799/dqkx.2020.132
发表时间：
2020-09
期刊：
Earth Science-journal of China University of Geosciences
影响因子：
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作者：
-黄道袤;-董春艳;-万渝生
通讯作者：
-黄道袤;-董春艳;-万渝生
影响因子：
6.1
作者：
M. Zhai;M. Santosh
通讯作者：
M. Zhai;M. Santosh