Mostrando 241 - 260 resultados de 1,099 para a busca '"Ordovician"', tempo de busca: 0.14s Refinar Resultados
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    Geological Composition and Structure of the Filling Zone and Its Water-Resisting Property Evaluation on the Top of Ordovician Limestone por Qiqing Wang, Wenping Li, Qiangqiang Liu

    Publicado em 2019-01-01
    “…With the gradual increase in mining depth of coal fields in North China, the threat posed by karstic Ordovician limestone water to the safe stoping of mines is becoming increasingly prominent. …”
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    Different controls on the Hg spikes linked the two pulses of the Late Ordovician mass extinction in South China por Zhen Qiu, Hengye Wei, Li Tian, Jacopo Dal Corso, Jiaqiang Zhang, Caineng Zou

    Publicado em 2022-03-01
    “…Abstract The Late Ordovician mass extinction (LOME, ca. 445 Ma; Hirnantian stage) is the second most severe biological crisis of the entire Phanerozoic. …”
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    Analysis of Crack Initiation and Propagation Thresholds of Inclined Cracks under High-Pressure Grouting in Ordovician Limestone por Bin Xu, Shuning Dong, Shangxian Yin, Shuxia Li, Yanling Xu, Zhenxue Dai

    Publicado em 2021-01-01
    “…Control of the grouting pressure within the critical grouting pressure for crack propagation in Ordovician limestone can not only ensure grout penetration length, but also prevent the risk of creating an artificial water channel. …”
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    Hydrogeochemical characteristics of Ordovician karst water in North China coalfield and its indicative significance for geothermal energy por Jie ZHANG, Luwang CHEN, Xiaowei HOU, Miao ZHANG, Yongsheng HU

    Publicado em 2023-10-01
    “…Ordovician karst water in the North China coalfield is a green energy source that integrates water and heat. …”
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    Characteristics and main controlling factors of Ordovician deep subsalt reservoir in central and eastern Ordos Basin, China por Ling Fu, Jianzhong Li, Wanglin Xu, Wei Guo, Ningxi Li, Yueqiao Zhang, Wei Song, Yuanshi Sun

    Publicado em 2021-02-01
    “…In recent years, the subsalt dolomite reservoirs in the Ordovician strata of the Ordos Basin have indicated good exploration results and are expected to have a high hydrocarbon potential. …”
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    Giant trilobites and Other Middle Ordovician Invertebrate Fossils from the Arouca UNESCO Global Geopark, Portugal por Artur Sá, Sofia Pereira, Isabel Rábano, Juan Carlos Gutiérrez-Marco

    Publicado em 2021-06-01
    “…The giant Ordovician trilobites from the Canelas quarry constitute the most iconic sign of identity of the Arouca UNESCO Global Geopark at an international level. …”
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    LINGULIFORM MICROBRACHIOPODS FROM LAS AGUADITAS AND LAS CHACRITAS FORMATIONS (MIDDLE-UPPER ORDOVICIAN) OF ARGENTINE PRECORDILLERA por FERNANDO JULIÁN LAVIÉ, FERNANDA SERRA, NICOLÁS ALEXIS FELTES

    Publicado em 2019-09-01
    “…Middle-Upper Ordovician linguliform microbrachiopods are described and illustrated for the first time from the Las Aguaditas Formation at the Los Blanquitos and Mogotes Azules ranges and from the Las Chacritas Formation at the Las Chacritas River section, Central Argentine Precordillera. …”
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    Ordovician climate changes in the northern subtropics: The δ18O record from the Tunguska Basin, Siberia por Peep Männik, Oliver Lehnert, Michael M. Joachimski

    Publicado em 2023-06-01
    “…Oxygen isotopes from bioapatite (conodonts) have been used for several decades to reconstruct the Palaeozoic climate history. During the Ordovician, conodont-based δ18Ophos studies have revealed a general cooling trend throughout the system. …”
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