Showing 361 - 380 results of 1,097 for search '"Ordovician"', query time: 0.16s Refine Results
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    Review and palaeoecological analysis of the late Tremadocian – early Floian (Early Ordovician) cephalopod fauna of the Montagne Noire, France by B. Kröger, D. H. Evans

    Published 2011-02-01
    “…The Early Ordovician successions of the southern Montagne Noire consist of a thick sequence of predominantly siliciclastic sediments of which the late Tremadocian St. …”
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    Short communication: Resolving the discrepancy between U–Pb age estimates for the “Likhall” bed, a key level in the Ordovician timescale by A. N. Paul, A. Lindskog, U. Schaltegger

    Published 2024-07-01
    “…This age is intermediate between previous estimates but outside of analytical uncertainty, and it provides a firm tie point for the Ordovician timescale.</p>…”
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    Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana by M.M. VERGEL, Guillermo F. Aceñolaza, L. ARÁOZ

    Published 2022-03-01
    “…The sampled material comes from the Cambro-Ordovician Iscayachi Formation cropping out in the Antenna of the Sierra de Sama, Tarija department, southern Bolivia. …”
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    Prevention of Water Inrushes in Deep Coal Mining over the Ordovician Aquifer: A Case Study in the Wutongzhuang Coal Mine of China by Huichao Yin, Bin Xu, Shangxian Yin, Wuzi Tian, Hui Yao, Haopeng Meng

    Published 2021-01-01
    “…This ternary structure is the Ordovician limestone aquifer-aquiclude including thin limestones-coal seam. …”
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    Organic Matter Enrichment of Black Shale at the Turn of Ordovician-Silurian in the Paleosedimentary Center in Southern Sichuan Basin, Upper Yangtze Area by Yue Cui, Xizhe Li, Lingling Han, Wei Guo, Wei Lin, Rui Chang, Weijun Shen, Yize Huang, Chao Qian

    Published 2022-05-01
    “… AbstractHerein, integrated vertical variation characteristic analysis was conducted by measuring total organic carbon (TOC), major and trace elements in Upper Ordovician-Lower Silurian (Wufeng-Longmaxi formations) black shale in Weiyuan, Luzhou, and Changning areas, southern Sichuan Basin to clarify the control of organic matter (OM) enrichment in different sublayers. …”
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  19. 379

    The Effect of Diagenetic Modifications on Porosity Development in the Upper Ordovician to Lower Silurian Wufeng and Longmaxi Formations, Southeast Sichuan Basin, China by Tian Dong, Zhiliang He, Kun Hu, Jian Gao, Shuangjian Li, Chuan Wang

    Published 2024-08-01
    “…For clarifying this issue, this paper focuses on the Upper Ordovician to Lower Silurian Wufeng and Longmaxi shales, which are the only commercially gas-produced shale plays in China. …”
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    Paleogeomorphology and shale distribution of Late Ordovician-Early Silurian Yangtze platform, South China: Implication for shale mineralogy and TOC content by Zhensheng Shi, Yuan Yuan, Qun Zhao, Shasha Sun, Tianqi Zhou, Feng Cheng

    Published 2023-08-01
    “…The distribution and mineral composition of the Wufeng-Longmaxi shale on the Yangtze platform are directly influenced by the geomorphology of the Late Ordovician-Early Silurian period. This research aimed to clarify the geomorphology of the Yangtze platform during this time period and its implication on the Wufeng-Longmaxi shale. …”
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