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Geochemical characteristics and organic matter accumulation of Late Ordovician shale in the Upper Yangtze Platform, South China
Published 2021-11-01“…The Ordovician shale (Wufeng Formation) in the Upper Yangtze Platform is now considered a successful development interval, independent of the Longmaxi Formation. …”
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322
Mechanisms of shale gas generation and accumulation in the Ordovician Wufeng-Longmaxi Formation, Sichuan Basin, SW China
Published 2017-02-01“…The source rock quality, organic pore structure, occurrence state and sealing mechanisms of shale gas in the Ordovician Wufeng – SilurianLongmaxi Formation (O3w-S1l), Fuling region, Sichuan Basin were studied using a series of techniques including ultra-microscopic organic maceral identification, FIB-SEM, high temperature/pressure isothermal adsorption and isotopic age dating of noble gas. …”
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323
Ordovician carbonate rock matrix fractured-porous reservoirs in Tahe Oilfield, Tarim Basin, NW China
Published 2014-12-01“…Thick and widespread in the Lower-Middle Ordovician Yijianfang and Yingshan Formations, sand-clastic masses in the porphyritic limestone are rich in oil, quite a proportion of oil and gas produced currently is from their matrix rather than completely from the fracture cave system in the past understanding. …”
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324
Ordovician climate changes in the northern subtropics: The δ18O record from the Tunguska Basin, Siberia
Published 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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325
The Early to Middle Ordovician graptolite faunal succession of the Trail Creek region, central Idaho, U.S.A
Published 2005-01-01Subjects: Get full text
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326
GC×GC-TOFMS analysis of ethanodiamondoids in Ordovician oil from well SN1, Tarim Basin
Published 2023-03-01Subjects: Get full text
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LATE ORDOVICIAN BRACHIOPOD <em> RONGATRYPA XICHUANENSIS </em> FROM XICHUAN, HENAN PROVINCE, CENTRAL CHINA
Published 2019-09-01“…Here, we reassign a species to the genus, Rongatrypa xichuanensis (Xu, 1996), from the Shiyanhe Formation (Katian, Upper Ordovician) of Xichuan, Henan Province, central China. …”
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329
Late Tremadocian (Early Ordovician) reefs on the Yangtze Platform, South China, and their geobiological implications: a synthesis
Published 2021-03-01Subjects: Get full text
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330
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Diamondoids in oils from the ultra-deep Ordovician in the North Shuntuoguole area in the Tarim Basin, NW China
Published 2021-04-01Subjects: Get full text
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332
<i>Kaljoprion</i> – a new enigmatic jawed polychaete genus from the Upper Ordovician of Estonia
Published 2008-12-01Subjects: Get full text
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333
Origin and characteristics of grain dolomite of Ordovician Ma55 Member in the northwest of Ordos Basin, NW China
Published 2019-12-01“…The origin of grain dolomite in M55 Member of Ordovician Majiagou Formation in northwestern Ordos Basin was studied by geochemical and petrological tests on core samples. …”
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Characteristics and main controlling factors of carbonate reservoirs of Middle-Lower Ordovician, Shunnan area, Tarim Basin
Published 2021-01-01Subjects: Get full text
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336
Digestive structures in the Middle Ordovician trilobite Prionocheilus Rouault 1847, from the Barrandian area of Czech Republic
Published 2018-03-01Subjects: Get full text
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337
Characteristics and genesis of shoal facies reservoir of the Lower Ordovician Tongzi Formation in southeastern Sichuan Basin, China
Published 2024-09-01Subjects: Get full text
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338
Early land plant remains from the uppermost Ordovician–?lowermost Silurian Cedarberg Formation of South Africa
Published 2023-06-01“…The Cape Supergroup forms a regionally extensive and extremely thick Ordovician to Carboniferous succession of sedimentary rocks in southwestern South Africa. …”
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Study on Sealing and Utilization Technology of No.6 Water Inrush Point of Ordovician Limestone in Sangshuping Coal Mine
Published 2020-02-01Subjects: Get full text
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