Results 11 to 20 of about 1,928,014 (200)

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, Ello Maremäe, A.-T. PIHLAK   +2 more
doaj   +3 more sources

Chemical weathering of lower paleozoic black shales of south Sweden [PDF]

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
doaj   +3 more sources

The lower Toarcian black shales of England. Les black-shales du Toarcien inférieur d'Angleterre

, 1979
Hallam A. The lower Toarcian black shales of England. Les black-shales du Toarcien inférieur d'Angleterre. In: Milieux de sédimentation de schistes bitumineux et de black shales. Lyon : Laboratoire de géologie de la Faculté des sciences de Lyon, 1979 (Documents des Laboratoires de Géologie de la Faculté des Sciences de Lyon, 75)
Hallam, A.
openaire   +2 more sources

Paleoenvironmental characteristics and organic matter enrichment mechanisms of the upper Ordovician-lower Silurian organic-rich black shales in the Yangtze foreland basin, South China

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, Yong Li, Chengjie Zou, Shaoze Zhao, Chaorong Wu   +4 more
doaj   +1 more source

Mechanism of Organic Matter Accumulation in Black Shales of the Yuertusi Formation in the Tarim Basin: Insights From Paleoenvironmental Variation During the Early Cambrian

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, Jianfa Chen, Weibing Shen, Min Li   +3 more
doaj   +1 more source

Earth’s Orbital Control on Organic Matter Enrichment in the Black Shales of the Wufeng–Longmaxi Formation in the Upper Yangtze Region, South China

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, Shaoze Zhao, Yong Li, Yingjiao Xu, Leli Cheng, Zhou Nie, Liang Zhao   +6 more
doaj   +1 more source

Geological field characteristic of the Kroh Formation in the Upper Perak shales, western Peninsula Malaysia

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, Chow Weng Sum, Mohd Suhaili Ismail, Haylay Tsegab Gebretsadik, Owusu Esther   +4 more
doaj   +1 more source

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, Hanwei Yao, Changzhou Deng, Stephen E. Grasby, Chengshan Wang, Xi Chen, Runsheng Yin   +6 more
doaj   +1 more source

Trace metal geochemistry of metalliferous black shales in the Mamfe basin (South West Cameroon): Implication for heavy metal assessment

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, Mary Ewokolo Molua Mbua Etutu, Florence Njinto Kwankam, Bisse Salomon Betrant, Ashukem Ethel Nkongho, Bokanda Frankline Besonge, Mokake Fidelis Esue, Ikose Franklin Barake, Ekomane Emile, Philip Fralick   +9 more
doaj   +1 more source

Mineralogical, petrographical, geochemical, diageneses and provenance of the Cretaceous Black Shales, Duwi Formation at Quseir-Safaga, Red Sea, Egypt

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
doaj   +1 more source