Results 21 to 30 of about 5,620 (262)

Sc, Cr, Co, Ni, Th and rare earth elements systematics in black shales of Murav’inskaya and Velsovskaya formations (Lyapin-Kutim anticlinorium, the Northern Urals): to the provenance reconstructions

Литосфера, 2017
The features of the Sc, Cr, Co, Ni, Th and rare earth elements distribution in the black shales of the Riphean Murav’inskaya and Velsovskaya formations in southern part of the Lyapin-Kutim anticlinorium (Northern Ural) are analyzed.
Andrey V. Maslov, Georg A. Petrov, Yury L. Ronkin   +2 more
doaj   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

PROSPECTS OF LITHUANIAN SILURIAN SHALE GAS, BALTIC SEDIMENTARY BASIN; pp. 357–372 [PDF]

Oil Shale, 2016
The Baltic sedimentary basin contains numerous hydrocarbon fields in Lithuania. The Lower Silurian shales are considered as potential for shale gas exploration. The thickness of shale units within the oil window ranges from 115 to 180 m in west Lithuania.
SAULIUS SLIAUPA, RASA SLIAUPIENĖ, GAILĖ ZALŪDIENĖ, TATSIANA VASKABOINIKAVA, ALENA BIBIKAVA, LIUDMILA EVSTRATENKO, ANDREI KOVKHUTO   +6 more
doaj   +1 more source

Hydrocarbon generation potential and organic matter accumulation patterns in organic-rich shale during the mesoproterozoic oxygenation event: evidence from the Xiamaling formation shale

Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
A significant deposition of black shales occurred during the Mesoproterozoic Oxygenation Event (MOE). In order to investigate the hydrocarbon generation potential and organic matter enrichment mechanism of these shale deposits, we studied the Xiamaling ...
Huan Miao, Zhenxue Jiang, Xianglu Tang, Ze Deng, Chengju Zhang, Zhikai Liang, Yuguang Shi   +6 more
doaj   +1 more source

Sources of the terrigenous and volcanic ash material in the Middle Volgian deposits of the Eastern Russian Platform

Учёные записки Казанского университета: Серия Естественные науки, 2021
The current research aims to reconstruct sources of the rocks and pyroclastic input in the epeiric sea of the Eastern Russian Platform in the Latest Jurassic.
K.I. Nikashin, S.O. Zorina
doaj   +1 more source

Weathering of phosphorus in black shales [PDF]

Global Biogeochemical Cycles, 2002
Rock weathering is the ultimate source of phosphorus (P) to the oceans, where P can be a limiting nutrient for biological production. In this paper, P weathering is examined in soil chronosequences formed in weathering profiles on the organic‐rich Woodford Shale, New Albany Shale and Green River Shale.
Lauren Clark Kolowith, Robert A. Berner
openaire   +1 more source

Silurian black shales from Sousel-Barrancos Metallogenic Belt (Ossa-Morena Zone, Portugal): Characterization and interplay to Cu deposits [PDF]

, 2023
Black shales are commonly spatially associated with metal-rich deposits, wherein organic matter in these rocks may condition or influence the processes related with the concentration of metals and formation of ore deposits. In the Ossa-Morena Zone (South
Nogueira, Pedro, Laranjeira, V., Rocha, F., Flores, Deolinda, Nogueira, P., Moreira, N., F. Rocha, V. Laranjeira, D. Flores, Flores, D., Rocha, Fernando, Rocha, F. T., Moreira, Noel, P. Nogueira, Mendonça Filho, João Graciano, N. Moreira, Mendonça Filho, J. G., Ribeiro, J., J.G. Mendonça Filho, Mendonça Filho, J.G., Laranjeira, Vanessa, Ribeiro, Joana, J. Ribeiro   +22 more
core   +1 more source

EARLY VISEAN EUXINIC BASIN IN THE SYSTEM OF PALEO-TETHYS (IN THE LIGHT OF MODERN DATA) [PDF]

Геологія і корисні копалини Світового океану, 2020
Among ancient euxinic basins of different age and geotectonic position there is one basin deserving of special attention. This is Early-Visean basin in the system of Paleo-Tethys which possess by striking similarity with the Black sea.
A.E. Lukin
doaj   +1 more source

(Table 1) General characteristics of Cretaceous black shales and adjacent rocks from ODP Leg 103 samples

, 1987
(Table 1) General characteristics of Cretaceous black shales and adjacent rocks from ODP Leg 103 ...
Keith W Dunham (6964976), Dunham, Keith W, Ho, Eileen S, Eileen S Ho (7947521), Philip A Meyers (6972827), Meyers, Philip A   +5 more
core   +1 more source

Carbonaceous deposits (Сarboniferous) and oil and gas potential prospects of the Magnitogorsk trough (South Urals, Russia)

Учёные записки Казанского университета: Серия Естественные науки, 2021
The oil and gas potential prospects of the Magnitogorsk trough in the South Urals were studied and substantiated using the data of the geological survey and deep-well drilling.
A.M. Tyurin, A.V. Kolomoets, A.V. Snachev, I.V. Smoleva, P.V. Pankrat’ev   +4 more
doaj   +1 more source