Results 11 to 20 of about 5,620 (262)
Chemical weathering of lower paleozoic black shales of south Sweden
Записки Горного института, 2018 Lower Paleozoic black shales are widespread in Sweden and form part of the Baltic paleobasin, which deposits are also known in Estonia and the Leningrad Oblast of Russia. These rocks are enriched in a carbon substance and characterized by the significant
D. O. Voronin, E. G. Panova
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RESOURCES, PRODUCTION AND PROCESSING OF BALTOSCANDIAN MULTIMETAL BLACK SHALES; pp. 68–77 [PDF]
Oil Shale, 2011 It has been generally accepted that black shales are oil shales and have to be handled as sources of fuel oil. This attitude has been so prevalent that it is applied even to those thermally mature black shales in Jämtland (Sweden) and Sillamäe (Estonia)
Endel Lippmaa +2 more
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Egyptian Journal of Petroleum, 2017 The Duwi Formation in the Quseir-Safaga area is conformably overlain by the Quseir variegated shales and underlain by the Dakhla shales. Detailed mineralogical and geochemical studies were carried out on the middle member of the black shales of the Duwi ...
Esmat A. Abou El-Anwar
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Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
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Frontiers in Earth Science, 2023 The Wufeng Formation-Longmaxi Formation (O3w-S1l1) black shales within the Yangtze foreland basin (South China) hold significant potential as unconventional oil and gas resources.
Liang Zhao +4 more
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Frontiers in Earth Science, 2022 The paleoenvironment during the Early Cambrian is closely related to the accumulation mechanism of organic matter (OM) from the Lower Cambrian black shales. However, paleoenvironment remains a controversial issue. Here, we reported a lot of detailed data
Yangyang Wang +3 more
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Frontiers in Earth Science, 2022 China’s most successful horizon for shale-gas exploration and development is the Upper Ordovician Wufeng Formation through the Lower Silurian Longmaxi Formation in its Upper Yangtze Region. In this study, the Wufeng–Longmaxi Formation black shales in the
Shaoze Zhao +6 more
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Journal of Natural Gas Geoscience, 2020 Unconventional hydrocarbon resource has become an interesting field of study; specially for its source rocks which can also be turned into excellent reservoirs to generate and accumulation hydrocarbons. Exploration and production from fine-grained rocks,
Monera Adam Shoieb +4 more
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Volcanism‐Triggered Climatic Control on Late Cretaceous Oceans
Geochemistry, Geophysics, Geosystems, 2022 During the Late Cretaceous, Earth's climate oscillated between warm and cool states, and global oceans changed between anoxic and oxic conditions, resulting in black/gray shales and oceanic red beds (ORBs) deposition, respectively.
Ruiyang Sun +6 more
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Scientific African, 2022 This study is focused on assessing the contamination levels of heavy metal elements (Cu, Cd, Cr, Ni, and Zn) in black metalliferous shales of the Mamfe basin in South Western Cameroon and identifying the possible pollution sources. Forty (40) black shale
Bokanda Ekoko Eric +9 more
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