Results 1 to 10 of about 1,794 (218)

Early and middle Jurassic sequence stratigraphic division of M coalfield in Xinjiang [PDF]

open access: yesE3S Web of Conferences, 2022
The coal accumulation in the M coalfield occurred in the Early-Middle Jurassic. There are three main coal-bearing strata in the M coalfield, the Early Jurassic Talicike Formation, the Yangxia Formation and the Middle Jurassic Kizilenur Formation.
Yao Qiuhui, Cui Kai
doaj   +3 more sources

Sedimentary Environments and Coal Accumulation of the Middle Xishanyao Formation, Jurassic, in the Western Dananhu Coalfield, Turpan-Hami Basin [PDF]

open access: yesGeofluids, 2021
The Dananhu coalfield, at the southern margin of Turpan-Hami Basin, Xinjiang, has good coal-forming geological conditions. Due to the low research level on the depositional environment and coal accumulation, the comprehensive coal mining is restricted ...
Zhiming Yan, Jinlong Wang, Xuetian Wang
doaj   +2 more sources

Middle Jurassic sequence stratigraphic characteristics in Longdong coalfield [PDF]

open access: yesE3S Web of Conferences, 2019
Stratigraphic sequence contrast and sequence stratigraphic framework are of great significance for the sedimentary phase and sedimentary systems of coal-accumulating basin.
Xu Tai   +4 more
doaj   +2 more sources

Pore Fractal Characteristics of Different Macro-Coal Components and Influence on Adsorption/Desorption: A Case Study in the Huanglong Jurassic Coalfield. [PDF]

open access: yesACS Omega, 2022
The heterogeneity of pore structure in coal reservoir is extremely complex. In this paper, mercury intrusion porosimetry (MIP) and liquid nitrogen adsorption (LNA) were used to describe pore characteristics of macro-coal components, and the fractal characteristics of pores and their relationship with adsorption and desorption were discussed.
Ma Z   +8 more
europepmc   +3 more sources

The characteristic and evolution of coal-forming swamp in Hanshuiquan district, Santanghu Coalfield, Xinjiang, NW China, during the Middle Jurassic: evidence from coal petrography, coal facies and sporopollen [PDF]

open access: yesInternational Journal of Coal Science & Technology, 2019
Santanghu Coalfield is the largest integrated coalfield exploration area in China. The major coal seams developing in Xishanyao Formation (Middle Jurassic) are the high-quality steam coals characterized by large thickness, favorable horizontal continuity
Shuo Feng   +4 more
doaj   +3 more sources

Mineralogical Characteristics of No. 3 Coal in the Jurassic Coalfield of Northern Shaanxi [PDF]

open access: yesE3S Web of Conferences
This study investigates the mineralogical characteristics of No. 3 coal seam in the Mahuangliang Coal Mine, located within the Jurassic coalfield of northern Shaanxi Province, China.
Yan Xiaoyun   +6 more
doaj   +2 more sources

Lacustrine basin evolution and coal accumulation of the Middle Jurassic in the Saishiteng coalfield, northern Qaidam Basin, China

open access: yesJournal of Palaeogeography, 2016
Based on an extensive borehole survey of the Middle Jurassic coal-bearing sequences in the Saishiteng coalfield, northern Qaidam Basin (NQB), a total of 20 rock types and 5 sedimentary facies were identified, including braided river, meandering river ...
Meng Li   +6 more
doaj   +2 more sources

Study on gas content variation and main controlling of low-rank coal in Huanglong Jurassic coalfield

open access: yesEnergy Exploration & Exploitation, 2023
In order to study the controlled factors and variation of gas content in deep low-rank coal reservoirs, taking No.4 coal of Jurassic Yan’an Formation in Huanglong coalfield as an example, collects the production data and prepares the coal samples ...
Yusong Ji   +8 more
doaj   +2 more sources

Paleovegetation Community and Paleoclimate Succession in Middle Jurassic Coal Seams in Eastern Coalfields in Dzungaria Basin, China. [PDF]

open access: yesPlants (Basel)
The Dzungaria Basin is located north of Xinjiang and is one of the largest inland basins in China. The eastern coalfields in the Dzungaria Basin contain a large amount of coal resources, and the thickness of the coal seams is significant. Therefore, the aim of this study was to classify the paleovegetation types and develop paleoclimate succession ...
Wang X   +6 more
europepmc   +4 more sources

Determining the Height of Water-Flowing Fractured Zone in Bedrock-Soil Layer in a Jurassic Coalfield in Northern Shaanxi, China [PDF]

open access: yesAdvances in Civil Engineering, 2021
The height of the water-flowing fractured zone is the most important technical parameter for water prevention and control in a coal mine. Due to the numerous factors affecting the water-flowing fractured zone, it is difficult to accurately identify the ...
Jie Feng   +4 more
doaj   +2 more sources

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