Results 21 to 30 of about 6,336 (226)
Petroleum Exploration and Development, 2012 A process for identifying marine hydrocarbon source rocks is established based on outcrop measurement, ground-penetrating radar survey, core analysis, logging evaluation, seismic interpretation, etc.
Shuichang ZHANG +5 more
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The Ordovician strata of the Ennedi Plateau, northeastern Chad (Erdi Basin)
Comptes Rendus. Géoscience, 2023 In the Ennedi Plateau, northeastern Chad, Cambrian(?)–Ordovician to Carboniferous strata represent one of the most proximal succession of the north-facing Gondwana platform. This study presents preliminary results related to the c.
Ghienne, Jean-François +4 more
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An Ordovician ostracod palaeopsychrosphere? [PDF]
Estonian Journal of Earth Sciences, 2023 Ostracods are tiny bivalved crustaceans with a fossil record extending into rocks of the Lower Ordovician. They occupy almost all aquatic environments today, from the ocean abyssal planes to damp forest leaf litter.
Anna McGairy +6 more
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Natural Gas Industry B, 2016 During the progressive exploration of the Jingbian Gas Field in the Ordos Basin, multiple gas-bearing regions have been discovered in the dolomite reservoirs in the Middle Ordovician assemblages of Lower Paleozoic in Jingxi area, but these gas-bearing ...
Xinshe Liu +6 more
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Cornulitids from the Upper Ordovician of northwestern Russia [PDF]
Carnets de géologie (Notebooks on geology), 2017 Four cornulitid species occur in the Rakvere Regional Stage in NW Russia. The new species Conchicolites rossicus is here described; it is the earliest known Conchicolites from the Ordovician of Baltica. The new species has very small tubes with sharp, strong and regular annulations.
Olev Vinn, Anna Madison
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Petroleum Exploration and Development, 2019 Based on field outcrop investigation, interpretation and analysis of drilling and seismic data, and consulting on a large number of previous research results, the characteristics of ancient marine hydrocarbon source rocks, favorable reservoir facies ...
Jinhu DU +8 more
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Terrane evolution of the paratectonic Caledonides of northern Britain [PDF]
, 2001 A stratigraphically constrained re-evaluation of terrane amalgamation in the Caledonides of northern Britain allows the development of a new orogenic scenario which accounts for many of the outstanding problems in the paratectonic Caledonides and ...
H. A. ARMSTRONG +5 more
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Global palaeogeographical implication of acritarchs in the Upper Ordovician
Estonian Journal of Earth Sciences, 2023 The EarlyâMiddle Ordovician peri-Gondwana and Baltica acritarch provinces are easily recognizable, illustrating a clear provincialism of global phytoplankton. However, acritarch assemblages have been reported to become increasingly similar towards the Late Ordovician, revealing a general cosmopolitanism, although, based on more recent studies ...
Yan Kui +4 more
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Darriwilian Saucrorthis Fauna: implications for the Great Ordovician Biodiversification Event (GOBE) [PDF]
Estonian Journal of Earth Sciences, 2014 The Saucrorthis Fauna is a brachiopod-dominated shelly fauna developed in relatively deeper-water benthic regimes of a few peri-Gondwana terranes (e.g.
Renbin Zhan +5 more
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New data on acritarchs from the Upper Ordovician of the Tungus basin, Siberian Platform [PDF]
Estonian Journal of Earth Sciences, 2014 Distinctive late Ordovician acritarch assemblages have been discovered for the first time from about a 100 m sedimentary succession exposed along the Bol¢shaya Nirunda River in Siberia.
Elena Raevskaya, Andrei Dronov
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