Results 51 to 60 of about 1,928,014 (200)

Organic petrology and geochemistry of the Upper Ordovician-Lower Silurian Renheqiao Formation shales of the Baoshan Block, western Yunnan, China

International Journal of Coal Science & Technology
Lower Paleozoic black shales are important source rocks worldwide. The Upper Ordovician-Lower Silurian Renheqiao Formation of the Baoshan Block is a low-maturity equivalent of the Wufeng-Longmaxi (WF-LMX) Shale of the Sichuan Basin.
Yinlong Wang, Detian Yan, Bei Liu, Haijiao Fu, Qingling Jiang, Yin Yuan, Hui Tian   +6 more
doaj   +1 more source

Uranium and Rare-Earth Elements in Dictyonema Shale of the Baltic Sedimentary Basin (Kaibolovo-Gostilitsy Area)

Georesursy
The article presents the results of the study of dictyonema shales of the Baltic basin (Leningrad Oblast, Kaibolovo-Gostilitsy prospecting area) for uranium (updated data on uranium mineralization of dictyonema shales) and rare earth elements (for the ...
V. I. Vyalov, T. A. Dyu, E. P. Shishov
doaj   +1 more source

The Toarcian black shale event in northern Italy

Organic Geochemistry, 1988
Abstract During the Early Toarcian (Jurassic; c . 192 Ma), organic-rich sediments were deposited in many areas of Europe. This paper reports the major findings of the first part of an organic geochemical investigation of the Toarcian Oceanic Anoxic Event (OAE).
Farrimond, P, Eglinton, G, Brassell, S, Jenkyns, H   +3 more
openaire   +2 more sources

Mechanisms of Uranium and Thorium Accumulation in the Lower Ediacaran Marine Sediments from the Upper Yangtze Platform, China: Implications for Helium Exploration

Journal of Marine Science and Engineering
The ocean is a significant global reservoir of uranium (U) and thorium (Th). These elements can be incorporated into marine sediments through processes involving organic matter (OM), redox conditions, terrigenous inputs, and mineral interactions.
Yi Zou, Qingyong Luo, Huayao Zou, Jianfa Chen, Wenming Ji, Jin Wu, Tao Du, Xintong Liu, Zilong Fang, Wenxin Hu, Ye Zhang, Jinqi Qiao   +11 more
doaj   +1 more source

Origin and Enrichment of Vanadium in the Lower Cambrian Black Shales, South China. [PDF]

ACS Omega, 2021
Wu T, Yang R, Gao L, Li J, Gao J.
europepmc   +1 more source

Organic matter characteristics in black shales of the southwestern paleogene N'kapa formation, Douala Sub-basin Cameroon: Evidence from stable isotopes and rock-eval pyrolysis

Evolving Earth
Shallow marine black shales from outcrops, river channels, drilled and dug wells in Dibombari-Kompina-Mian (Stage-1) and Pendanboko (Stage-2) of the Paleogene N'kapa Formation in Douala Sub-basin were studied.
Ngong Roger Ngia, Elie Fosso Menkem, Alexandrine N'nanga, Christopher Fuanya, Median Yongye   +4 more
doaj   +1 more source

From Siliciclastics to Carbonates and Black shales: Deciphering Sedimentary Continuity and Discontinuity in the Devonian Landscapes of the Volga-Ural Petroleum Province

Georesursy
Analyses of the three predominant types of sedimentation – siliciclastic, carbonate and black shale – revealed their discontinuity/continuity across various facies environments within the Middle and Late Devonian of the central part of the Volga-Urals ...
V. V. Silantiev, D. N. Miftakhutdinova, N. G. Nurgalieva   +2 more
doaj   +1 more source

(Table 3) Relative distribution of normal and isoprenoid alkanes in oils of bitumen A from black shales of the Cape Verde Basin in DSDP Hole 41-367

, 1979
(Table 3) Relative distribution of normal and isoprenoid alkanes in oils of bitumen A from black shales of the Cape Verde Basin in DSDP Hole 41 ...
L I Bogolyubova (6886124), Bartashevich, O V, Bogolyubova, L I, O V Bartashevich (7974728)   +3 more
core   +1 more source

Paleoenvironmental reconstruction and carbon and sulfur isotopes perturbation in black shales of the Paleocene Bolander member in the N’kapa Formation, Douala Sub-basin Cameroon

Geosystems and Geoenvironment
Black shales deposited across the Paleocene Bolander member of the N’kapa Formation are considered important source rock and shale gas reservoirs in the Douala sub-basin.
Ngong Roger Ngia, Elie Fosso Menkem, Alexandrine N’Nanga, Christopher Fuanya, Median Yongye   +4 more
doaj   +1 more source

(Table 1) Content and composition of bitumen A from organic matter of black shales from the Cape Verde Basin in DSDP Hole 41-367

, 1979
(Table 1) Content and composition of bitumen A from organic matter of black shales from the Cape Verde Basin in DSDP Hole 41 ...
L I Bogolyubova (6886124), Bartashevich, O V, Bogolyubova, L I, O V Bartashevich (7974728)   +3 more
core   +1 more source