Results 21 to 30 of about 114,650 (297)
Shiyou shiyan dizhi, 2022 The Dawangzhuang buried hill zone is a typical representative of Paleozoic oil and gas exploration in the Jiyang Depression, Bohai Bay Basin, and has experienced a complicated accumulation process.
Zhiqing ZHANG +4 more
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A long-term record of early to mid-Paleozoic marine redox change
Science Advances, 2021 Early Paleozoic bottom waters were mainly ferruginous, like the Neoproterozoic, with a shift to increased euxinia in the Devonian. The extent to which Paleozoic oceans differed from Neoproterozoic oceans and the causal relationship between biological ...
E. Sperling +19 more
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Study on the Upper Paleozoic Source Rocks in Southwestern Henan, China [PDF]
E3S Web of Conferences, 2021 The Upper Paleozoic strata in Southwestern Henan have good prospects for unconventional oil and gas exploration. This paper takes the Upper Paleozoic source rocks in the Yuzhou area and the Pingdingshan area in Southwestern Henan as the research object ...
Sun Fengyu, Cao Gaoshe, Xing Zhou
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Geochemistry and Petrogenesis of Carboniferous volcanic rocks, NW Marand: Evidence for interacontinental rift Magmatism) [PDF]
پترولوژی, 2020 The studied volcanic-sedimentary sequence located at the East-Azarbaijan province, north Marand and in the Central Iranian structural zone. The studied sequence composed of alternative sandstone, shale, conglomerate, limestone, felsic volcaniclastics ...
Zahra Badrzadeh +2 more
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On Paleozoic platycerate gastropods
Zitteliana, 2023 The platycerate gastropods Orthonychia yutaroi Ebbestad, sp. nov. (Ordovician, Boda Limestone, Sweden), O. enorme (Silurian, Sweden, Gotland), O. parva (Pennsylvanian, Finis Shale Member, USA), and Orthonychia sp. (Mississippian, Imo Formation, USA) are studied including their protoconch morphology.
Alexander Nützel +5 more
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A new middle Cambrian trilobite with a specialized cephalon from Shandong Province, North China [PDF]
Acta Palaeontologica Polonica, 2020 Trilobites achieved their maximum generic diversity in the Cambrian, but the peak of morphological disparity of their cranidia occurred in the Middle to Late Ordovician. Early to middle Cambrian trilobites with a specialized cephalon are rare, especially
Zhixin Sun, Han Zeng, Fangchen Zhao
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Geochemical characteristics and genesis of Paleozoic natural gas in the Ordos Basin
Shiyou shiyan dizhi, 2023 The geochemical characteristics and genesis of Paleozoic natural gas in the Ordos Basin are complex, with some disputes on the gas source of Lower Paleozoic. In order to better grasp the overall geochemical characteristics and variation laws of Paleozoic
Furong LI +7 more
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ASYNCHRONOUS DEVELOPMENT OF REEFS AND REEF-BUILDING BIOTA. PALEOZOIC
Известия высших учебных заведений: Геология и разведка, 2020 This work analyses the development of reefs, which represent thick morphologically expressed carbonate massifs created by the activity of frame-forming organisms. Major stages in the development of reefs include the periods of Early Cambrian, Ordovician,
V. G. Kuznetsov
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Shiyou shiyan dizhi, 2020 The Wensu Uplift is an important structural belt in the northern Tarim Basin, NW China, always regarded as a thrust belt. However, this recognition is not only incompatible with the facts that synthetic and antithetic faults are equally developed in ...
Guangyu HE +7 more
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Evolution of prototype basin and change of tectonic-sedimentary pattern in Paleozoic, Ordos Basin
Shiyou shiyan dizhi, 2022 The Ordos Basin is a craton basin developed based on the Precambrian rift system during Permian. It has experienced two stages of evolution including the Early Paleozoic craton marginal depression and Late Paleozoic intra-craton depression.
Faqi HE, Fubin WANG, Liguo GUO, Chuan AN
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