Fault characteristics and their control on oil and gas accumulation in the southwestern Ordos Basin by Yongtao Liu, Shuanghe Dai, Yijun Zhou, Fufeng Ding, Mingjie Li, Xingyun Li, Yu Zhao, Binhua Guo, Tong Li, Junan Han

“…These NS-, NW-, and NE-trending fault systems developed in the Meso-Neoproterozoic – Lower Ordovician strata. Of these, the NS-trending fault system mainly consists of consequent and antithetic faults which show clear syndepositional deformation. …”
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3D geological model-based hydraulic fracturing parameters optimization using geology–engineering integration of a shale gas reservoir: A case study by Yuyang Liu, Xinhua Ma, Xiaowei Zhang, Wei Guo, Lixia Kang, Rongze Yu, Yuping Sun

“…With Well Area X of the shale gas reservoir from the Ordovician Wufeng Formation to the Silurian Longmaxi Formation in Luzhou, southern Sichuan, China, as an example. …”
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The Acheulean of the Upper Guadiana River Basin (Central Spain). Morphostratigraphic Context and Chronology by M. Santonja, M. Santonja, A. Pérez-González, J. Baena, J. Panera, J. Panera, E. Méndez-Quintas, E. Méndez-Quintas, D. Uribelarrea, D. Uribelarrea, M. Demuro, L. Arnold, A. Abrunhosa, A. Abrunhosa, S. Rubio-Jara, S. Rubio-Jara, S. Rubio-Jara

“…These fans, mainly composed of Lower and Middle Ordovician quartzite gravel, were eroded in their distal positions by the Bullaque and Becea rivers, forming very low terraces on which large concentrations of Acheulean and Mousterian lithic industry can be found. …”
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Grain Size Distribution of Organic Matter and Pyrite in Alum Shales Characterized by TIMA and Its Paleo-environmental Significance by XIE Xiao-min, LI Li, YUAN Qiu-yun, WU Fen-ting, LIN Jing-wen, DOU Hao-ran

“…BACKGROUND Alum shale (Middle Cambrian to Lower Ordovician) is a set of significant marine source rock in Northern Europe, and the maturity is from immature to over mature. …”
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Hyolitha from the Early Paleozoic glacial erratic boulders (Geschiebe) of Germany and Poland by J. M. Malinky

“…Occurrences in the Geschiebe of <i>Crispatella</i> Malinky, 2002 and <i>Dorsolinevitus</i> Syssoiev, 1958, reinforce the notion of distinct hyolith paleobiogeographic provinces in the Ordovician, with these forms belonging to the Baltic province of Marek (1976). …”
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Geological characteristics and enrichment laws of normal-pressure shale gas in the basin-margin transition zone of SE Chongqing by Xipeng He, Guisong He, Yuqiao Gao, Peixian Zhang, Shuangfang Lu, Jingya Wan

“…Keywords: SE Sichuan basin, Transition zone at the basin margin, Late ordovician–early silurian, Normal-pressure shale gas, Main factors controlling high yield, Tectonic stress field, Gas accumulation…”
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Chitinozoan biostratigraphy through the Aeronian–Telychian boundary interval on Anticosti Island, Canada by C. Klock, A. Desrochers, P. I. McLaughlin, P. Emsbo, T. De Backer, F. M. Jonckheere, C. J. P. Esteves, T. R. A. Vandenbroucke

“…Our refined age model for the Aeronian to Telychian succession of Anticosti Island provides a solid baseline to study further Llandovery biochemical events in the aftermath of the Late Ordovician mass extinction.</p>…”
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Pressure evolution of shale gas reservoirs in Wufeng-Longmaxi formations, Lintanchang area, southeast Sichuan Basin and its geological significance by Jianming TANG, Jianhua HE, Limin WEI, Yong LI, Hucheng DENG, Ruixue LI, Shuang ZHAO

“…The Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation in Lintanchang area of the southeastern Sichuan Basin has good exploration and development conditions, and clarifying the paleo-fluid pressure evolution is of great significance for revealing the process of shale gas accumulation and fugitive emission. …”
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Indicative significance of hydrochemical characteristics in geothermal resource investigations in the Enshi Basin by Zewei Li, Fei Yuan, Minglong Li, Jun Zhao, Kai Wan, Guangshun Li

“…Conclusion According to the elevation range of the study area, the geothermal water recharge area is mainly the low and middle mountain area of Cambrian Ordovician carbonate rocks in the western part of the basin.…”
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Formation mechanisms and resource potential of carbonate geothermal reservoirs in the Beijing-Tianjin-Hebei plain by Xinwei Wang, Tinghao Wang, Nanan Gao, Xiang Mao, Lu Luo, Xingchen Lu, Haiquan Li

“…The results show that two suites of carbonate karst reservoirs, namely the Jxw Formation and the Ordovician strata, have primarily developed in the BTHP, and their formation and evolution can be divided into four stages: the Mesoproterozoic-Early Paleozoic stage with carbonate sedimentation and the development of interlayer karst, the Late Paleozoic stage with the development of direct sedimentary cover, the Mesozoic stage with compressional uplifting and development of buried hill karst, and the Cenozoic stage with regional cover deposition and the modification and finalization of karst geothermal reservoirs. …”
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Metallogenesis of the Cu-Ni sulfide type mineralization in the Bounhas vein deposit (Eastern Anti-Atlas, Morocco): Insights from ore mineral paragenesis and fluid phases by Abdel-Ali Kharis, Said Ilmen, Mohamed Aissa, Bouchra Baidada, Azizi Moussaid, Hafid Mezougane, Ahmed Fadili, Hicheme Houane, Sghir Syad, Lhou Maacha

“…It is characterized by Cu, Ni, Pb and Zn mineralizations, which are essentially hosted in sedimentary terrains of a sandstone-pelitic nature of the upper formation of the second Bani group (Upper Ordovician). These terrains are affected by brittle deformations that have developed faults that host the lenticular vein mineralization in an E-W direction. …”
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Results of the study of the section of the Takata formation "Yuzhnaya Rassolnaya" in the territory of the Poludovo-Kolchimsky anticlinorium of the Western-Ural folding zone (Krasno... by Yury G. Paktovsky, Aleksey V. Plusnin, Elena M. Tomilina, Dmitry A. Staroselets, Igor V. Afonin, Evgenia S. Rabtsevich, Alexander I. Sulima, Vitaly A. Chuiko

“…At the same time, water flows carrying weathering products from the East European Platform eroded sedimentary rocks of the Riphean, Vendian, Ordovician and Silurian, which fragments we observe in small quantities when describing thin sections. …”
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Cadomian metabasites of the Eastern Pyrenees revisited by Núria Pujol-Solà, Josep Maria Casas, Joaquín A. Proenza, Idael F. Blanco-Quintero, Elena Druguet, Montserrat Liesa, Manuel J. Román-Alpiste, J. Javier Álvaro

“…These variations are akin to island arc tholeiites generated in back-arc basins and to other metabasites described in the Eastern Pyrenees with a putative Ediacaran age, and they differ from the Ordovician tholeiitic metabasites from the Canigó massif, which derived from a contaminated E-MORB source. …”
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Control mechanism of tectonic action on continuous accumulation and coupling of conventional-unconventional oil and gas reservoirs: a case study of Pingqiao area, southeastern Sich... by Lingyu GAO, Kongquan CHEN, Jianlin LU, Jiguang TANG, Xiusong TUO, Douzhong ZHANG, Chunming YAN, Yizhen PANG

“…The Cambrian Qiongzhusi Formation and Ordovician Wufeng Formation to Silurian Longmaxi Formation source rocks mainly experienced long-term burial and hydrocarbon generation in the early Yanshanian period and before. …”
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Microstructure characteristics of Wufeng-Longmaxi shale gas reservoirs with different depth, southeastern Sichuan Basin by Weixin LIU, Longfei LU, Zhihong WEI, Lingjie YU, Wentao ZHANG, Chenjie XU, Deliao YE, Baojian SHEN, Ming FAN

“…Thin section analysis, X-ray diffraction, conventional scanning electron microscopy (SEM), high-resolution Ar+ ion polishing SEM, mercury intrusion, nitrogen adsorption, total organic carbon (TOC) content and porosity analyses were used to determine the mineral composition, microstructure and micro-pore volume of shale reservoirs from different depths in the Upper Ordovician Wufeng Formation and Lower Silurian Longmaxi Formation in southeastern Sichuan Basin. …”
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Microfacies types and distribution of epicontinental shale: A case study of the Wufeng–Longmaxi shale in southern Sichuan Basin, China by Hongyan WANG, Zhensheng SHI, Shasha SUN, Qun ZHAO, Tianqi ZHOU, Feng CHENG, Wenhua BAI

“…For black shales, laminae and bedding are hard to identify, grain size is difficult to measure, and trace fossils do not exist. Taking the Ordovician Wufeng – Silurian Longmaxi shale in southern Sichuan Basin, China, as an example, the types, characteristics and models of microfacies in epicontinental shale are analyzed by means of full-scale observation of large thin sections, argon-ion polishing field emission-scanning electron microscopy (FE-SEM), and kerogen microscopy. …”
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Petrophysical Characterization and Gas Accumulation of Wufeng-Longmaxi Shale Reservoir in Eastern Margin of Sichuan Basin, SW China by Wei Wang, Dahua Li, Lijun Cheng, Ye Zhang, Jinxi Wang, Zhiping Zhang, Hualian Zhang, Dongxin Guo, Yuelei Zhang, Qing Hua, Jun Liu

“…Aiming to serve a more responsible and efficient shale gas development, for example, to guide the hydraulic/nonaqueous fracturing operation, this work organized a comprehensive assessment on the petrophysical characterization and gas accumulation of the Upper Ordovician Wufeng-Lower Silurian Longmaxi shale reservoir (abbreviated as WL shale). …”
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Distinguishing borings and burrows in intraclasts by Yazhou Hu, Luke C. Strotz, Dirk Knaust, Jiayue Wang, Yue Liang, Zhifei Zhang

“…For example, it has been proposed that early lithification of carbonate sediments facilitated the substantial increase of biodiversity during the Great Ordovician Biodiversification Event. Thus, identification of hardgrounds forms an integral component in documenting both geological and evolutionary events in the early Palaeozoic. …”
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<i>Muenstraia</i>, ein neues Rugosa-Genus (Anthozoa) aus dem Obersilur und Unterdevon by D. Weyer

“…The genus descends from the isolated Upper Middle Ordovician <i>Protozaphrentis</i> Yü, 1957, only known from Xinjiang in China; it is the ancestor of two new phylogenetic lines starting in the Ludlovian with <i>Laccophyllum</i> Simpson, 1900, and <i>Sutherlandinia</i> Weyer, 1972. …”
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Data of thermal imprints of late Permian Emeishan basalt effusion: Evidence from zircon fission-track thermochronology by Di Hu, Yuntao Tian, Jie Hu, Song Rao, Yibo Wang, Chao Zhang, Shengbiao Hu

“…ZFT ages of the five Cambrian to Ordovician samples are younger than their depositional ages, and thus were fully reset by post-depositional heating. …”
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