Results 1 to 10 of about 1,983,107 (202)

Geogenic enrichment of potentially toxic metals in agricultural soils derived from black shale in northwest Zhejiang, China: Pathways to and risks from associated crops

Ecotoxicology and Environmental Safety, 2021
Agricultural soils derived from black shale are typically enriched in potentially toxic metals. This is a serious problem, both in terms of the ecological environment and human health.
Shuang Zhang, Yingfei Xu, Mengjie Wu, Xiali Mao, Yucai Yao, Qian Shen, Mingkui Zhang   +6 more
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Migration and Enrichment of Arsenic in the Rock-Soil-Crop Plant System in Areas Covered with Black Shale, Korea

The Scientific World Journal, 2003
The Okchon black shale, which is part of the Guryongsan Formation or the Changri Formation of Cambro-Ordovician age in Korea provides a typical example of natural geological materials enriched with potentially toxic elements such as U, V, Mo, As, Se, Cd,
Ji-Min Yi, Hyo-Taek Chon, Min Park
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Sol-Gel Processes in Micro-Environments of Black Shale: Learning from the Industrial Production of Nanometer-Sized TiO2 Polymorphs

ChemEngineering, 2019
Micro-environments in black shale are reactors for geochemical reactions that differ from the bulk scale. They occur in small isolated pores of several 10 s to 100 s of nanometers without or with limited ionic exchange by diffusion to the surrounding ...
Hans-Martin Schulz
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Evolution and implications of shale pore structure characteristics under different preservation conditions

Youqicang pingjia yu kaifa, 2020
Because of the importance of preservation conditions and shale pore evolution to shale gas exploration and development, it is of great scientific significance and academic value to study the relation between them.
LIU Shugen, YE Yuehao, RAN Bo, JIANG Lei, LI Zhiwu, LI Jinxi, SONG Jinmin, JIAO Kun, LI Zeqi, LI Yuwei   +9 more
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Rare earth element geochemistry of Early Cretaceous black shales in Ediki River, Douala Basin (Cameroon)

Discover Geoscience
Organic black shale has garnered significant interest as a viable unconventional source of rare earth elements (REEs) besides conventional REE-bearing ores.
Esue Fidelis Mokake, Florence Njinto Kwankam, Ligbwah Victor Wotanie, Lemnyuy Prosper Yiika, Njoh N. Clevis, Emmanuel Eseya Mengu Junior, Nwamba Maurice Njiganga, Christopher M. Agyingi   +7 more
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Shale gas accumulation conditions and gas-bearing characteristics of the Lower Cambrian Niutitang Formation in Well Changye-1 in northwestern Hunan Province

Petroleum Research, 2016
: To evaluate the accumulation conditions and gas-bearing properties of shale gas in the Lower Cambrian Niutitang Formation, northwestern Hunan Province, the first shale gas parameter well (Well Changye-1) that takes the Niutitang Formation as the target
Tuo Lin, Shujing Bao, Jinchuan Zhang, Zhi Zhou, Kun Yuan, Bo Li, Shengyu Yang   +6 more
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The Study on Preparation of Silica Using Residue of Oil Shale Residue [PDF]

Kemija u Industriji, 2015
Usage of oil shale produces abundant oil shale residue, which may not only directly cause serious pollution to the environment, but also result in a waste of resource.
Nie L. , Wang T.
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Performance Study of Black Shale Modified Soil for Road Use Based on Eshelby–Mori–Tanaka Theory

Applied Sciences
Black shale, as a type of soft rock, exhibits high strength when freshly exposed. However, it easily disintegrates upon contact with water, making it unsuitable for direct use in roadbed construction.
Min Hu, Zhangduo Huang, Jiejin Chen, Yipeng Guo, Yichao Zhou, Dashun Liu, Rong Guo   +6 more
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Discussion on prospecting shale oil potential of Mesoproterozoic Hongshuizhuang Formation in the Jibei Depression

Shiyou shiyan dizhi, 2023
In order to evaluate the shale oil prospecting potential of the Mesoproterozoic Hongshuizhuang Formation in the Jibei Depression, the analyses of routine Rock-Eval pyrolysis, matrix porosity and permeability, mercury intrusion and nitrogen adsorption ...
Zhiming LI, Zhongliang SUN, Yunjie BAO, Ershe XU, Yongshui ZHOU, Yunxian ZHANG   +5 more
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Geological characteristic and its implications of shale exploration in Qijiang, Chongqing, China

Youqicang pingjia yu kaifa, 2022
Detailed field description and experimental analysis have been carried out for Wufeng-Longmaxi Formation shale profile in Anwen Town, Qijiang, Chongqing, by field profile observations and field measurements.
GAO Yuqiao, LIU Nana, ZHANG Peixian, HE Guisong, GAO Quanfang   +4 more
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