Results 71 to 80 of about 1,952 (183)
Geochemical and Geological Characteristics of the Upper Ordovician-Lower Silurian Shales in the Upper Yangtze Basin, South China: Implication for the Shale Gas Exploration. [PDF]
ACS Omega, 2020 Sun YY +9 more
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Upper Ordovician formations in the Maysville area, Kentucky [PDF]
, 1966 Upper Ordovician strata in the Maysville area, Kentucky, are divided into five formations. The basal Kope Formation is overlain by the Fairview Formation. Above the Fairview are two newly defined map units, the Grant Lake Limestone and the overlying Bull Fork Formation. The Preachersville Member of the Drakes Formation overlies the Bull Fork.
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Rock magnetism of the Upper Ordovician Zhaolaoyu Formation of the southern Ordos Basin
地质科技通报Objective Palaeomagnetic methods can be used to quantitatively constrain the Early Palaeozoic palaeo-position of the North China Block (NCB), which provides a crucial scientific basis for researching the evolution of the Proto-Tethyan Orogeny and the ...
Shuqi LAN +14 more
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Energy Exploration & Exploitation, 2017 The molecular composition, stable carbon and hydrogen isotopes, and light hydrocarbons of the Lower Paleozoic natural gas in the Daniudi gas field in the Ordos Basin were investigated to study the geochemical characteristics.
Xiaoqi Wu +8 more
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地质科技通报Objective The Well Tashen 5 that was completed in 2021 has a burial depth of 9 017 m and is currently the deepest drilling well in Asia. It is also the first hydrocarbon breakthrough in the dolomite sectionof Upper Sinian at a depth of 8 780-8 840 m in ...
Mingxia LUO +4 more
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Bucaniidae (Gastropoda) from the Upper Ordovician of Norway
Norsk Geologisk Tidsskrift, 1999 Fourteen species of bellerophontoid gastropods of the Family Bucaniidae are described from the Upper Ordovician succession of the Oslo Region, Norway. Bucania sp. is compared with several species of Bucania that stand out morphologically by having a median dorsal carina, moderate to wide umbilici and an ornamentation consisting of crenulated growth ...
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Литосфера, 2016 The litho-paleoecological characteristics of the Upper Ordovician reef Bol’shaya Kos’yu was given. The reef paleolandscape profile - reef plateau, reef internal lagoons, and frontal reef zone was determined, and reef facies were described.
L. A. Shmeleva
doaj
Upper Ordovician conodonts in the Valbertad section
, 2017 .
BAGNOLI GABRIELLA +3 more
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Open GeosciencesReal drilling near the upper Ordovician pinch-out line in the Tahe Oilfield shows that the drilling encountered karst reservoir. However, due to the transitional position between the denudation area and the overlying area and the special karst geological
Yang Debin +6 more
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On the Upper Ordovician unconformity in the Pyrenees
, 2007 In recent years, contradictory reports about whether or not an unconformity exists at the base of the Upper Ordovician succession of the Pyrenees have been made. In the Cerdanya area (Central Pyrenees), good outcrop evidence for this unconformity is displayed at the base of the Rabassa conglomerates.
Casas Tuset, Josep Maria +1 more
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