Results 1 to 10 of about 4,762 (162)

Geological evaluation of black shale as a suitable Supplementary Cementitious Material (SCM) to optimize the use of clinker in cement production [PDF]

open access: yesHeliyon
Faced with challenges like resource depletion and climate change, the cement industry needs sustainable solutions. This study explores the potential of geologically-delinaeated black shale from Apersua, Ghana, as a supplementary cementitious material ...
Samuel Nunoo   +9 more
doaj   +2 more sources

Potentially Toxic Element Migration Characteristics and Bioavailability in Soils of the Black Shale Region, Western Zhejiang Province, China [PDF]

open access: yesToxics
Some soil heavy metal pollution, such as As (Arsenic) and Cd (cadmium), in the black shale areas of western Zhejiang, exhibits significant geological background characteristics, yet the migration patterns and bioavailability are unclear.
Huanyuan Chen   +5 more
doaj   +2 more sources

Black shale formation environment and its control on shale oil enrichment in Triassic Chang 7 Member, Ordos Basin, NW China

open access: yesPetroleum Exploration and Development, 2021
Based on geochemical analysis results of core samples from the Triassic Chang 7 Member of Well Feng 75 drilled in the northwest margin of Ordos Basin, combined with geological characteristics of this region, the formation environment of the black shale ...
Bin ZHANG   +7 more
doaj   +3 more sources

The Sedimentary Geochemical Characteristics and Geological Significance of the Wufeng-Longmaxi Formation Accumulation of Organic Matter Black Shale on the Southeastern Sichuan Basin, China

open access: yesGeofluids, 2022
At present, the understanding of the sedimentary paleoenvironment and organic matter enrichment law of black shale in the Wufeng-Longmaxi Formation is still insufficient.
Bin Wu
doaj   +1 more source

Distribution pattern of the Ordovician black shale constrained by graptolite zonation in the western margin of the Ordos Block, North-West China [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
The graptolitic shale from the late Middle to early Late Ordovician along the western margin of the Ordos Block is a good target bed for shale gas exploration.
Chuanshang Wang, Yong Hu
doaj   +1 more source

Characteristics of interactions between black shale and water [PDF]

open access: yesE3S Web of Conferences, 2019
Some geological engineering problems are caused by weathering of black shale within dispersed sulfide minerals (mainly pyrite), in which some weathering products such as acid water and expansive sulfates play an important role.
Liao Xin   +5 more
doaj   +1 more source

CHARACTERISTICS AND RESOURCE POTENTIAL OF OIL SHALE IN CHINA; pp. 15–41 [PDF]

open access: yesOil Shale, 2017
Based on the results of the National Oil Shale Resource Evaluation in China conducted from 2003 to 2006, and combined with the new explora­tion progress in recent years, the characteristics and resource potential of oil shale in China have been ...
ZHAOJUN LIU   +7 more
doaj   +1 more source

Qualitative–quantitative multiscale pore characteristics of black shale from the Upper Ordovician and Lower Silurian black shale in the Southern Sichuan Basin, China

open access: yesFrontiers in Earth Science, 2022
Accurate investigation of shale pores is critical to the assessment of shale-gas reservoir properties. Qualitative and quantitative methods have been commonly conducted in shale pore studies.
Chao Han   +5 more
doaj   +1 more source

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