Results 21 to 30 of about 5,371 (192)

Chemical weathering of lower paleozoic black shales of south Sweden

open access: yesЗаписки 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   +1 more source

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

open access: yesOil 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   +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

open access: yesGeomechanics 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   +6 more
doaj   +1 more source

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

open access: yesУчёные 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

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

open access: yesУчёные 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   +4 more
doaj   +1 more source

Organic petrography and trace element geochemistry of organic black shales in the Kribi Campo sub-Basin, West Africa: Implication for petroleum source rock evaluation and depositional environment

open access: yesScientific African, 2023
The aim of this study was to characterise the maceral properties, depositional environment and petroleum source rock properties of black shales deposits of the lower Mundeck Formation of the Douala Kribi Campo sub-basin from organic petrography and trace
Kah Odilia Sih   +7 more
doaj   +1 more source

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

open access: yesГеологія 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

Formation, evolution, reconstruction of black shales and their influence on shale oil and gas resource

open access: yesChina Geology
: Black shales are important products of material cycling and energy exchange among the lithosphere, atmosphere, hydrosphere, and biosphere. They are widely distributed throughout geological history and provide essential energy and mineral resources for ...
Shi-zhen Li   +13 more
doaj   +1 more source

Geochemical and Clay Mineralogical Characteristics of the Black Shale and Constrains on Diagenesis and Maturation, Chia Gara Formation, Iraqi Kurdistan Region, Iraq

open access: yesIraqi Geological Journal, 2022
Black shale of Tithonian (Late Jurassic)-Berriasian (Early Cretaceous) Chia Gara Formation have been investigated by clay minerals and geochemistry (total organic carbon, major and trace elements) to determine the chemical associations and the ...
Faraj H. Tobia, Rezhin K. Mustafa
doaj   +1 more source

Geological and Geochemical Characteristics of Black Shale in Yanxi Formation of Middle Ordovician in Central Hunan

open access: yesChemical Engineering Transactions, 2017
The Middle Ordovician Yanxi Formation (O2y) in the central area of Hunan province with a set of organic-rich marine shales is having great potential for prospecting of shale gas.
Jie Li   +3 more
doaj   +1 more source

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