Results 41 to 50 of about 14,392 (168)

GEOECOLOGICAL BASIS FOR THE ORGANIZATION OF MONITORING OF THE NORTHERN URBANIZED TERRITORIES (BY THE EXAMPLE OF PETROZAVODSK)

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2016
The Geochemistry of the snow cover, soils and near-surface sediments, groundwater,biogeochemical and morphological characteristics of herbaceous communities in different functional zones of the city were studied in Petrozavodsk.
Natalia Krutskikh, Galina Borodulina, Natalia Kaznina, Yulia Batova, Pavel Riazantcev, Gulnara Akhmetova, Sergey Novikov, Irina Kravchenko   +7 more
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Geochemical Characteristics and Uranium Neutral Leaching through a CO₂ + O₂ System—An Example from Uranium Ore of the ELZPA Ore Deposit in Pakistan

Metals, 2020
Geochemical characterization studies and batch leaching experiments were conducted to explore the effects of a CO2 + O2 leaching system on uranium (U) recovery from ores obtained from an eastern limb of Zinda Pir Anticline ore deposit in Pakistan.
Fiaz Asghar, Zhanxue Sun, Gongxin Chen, Yipeng Zhou, Guangrong Li, Haiyan Liu, Kai Zhao   +6 more
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Thermochemical and geochemical characteristics of sulphur coals

Fuel Processing Technology, 2002
Abstract Gas chromatography–mass spectrometry (GC-MS) method was applied for investigation of the extracts obtained from three pairs of Donets bituminous coals (76–79% of C daf ) of similar rank but differing in sulphur content. The elemental characteristic of the coals and hydrocarbon composition of their extracts reflect the differences in the ...
Achim Bechtel, Ludmila Butuzova, Oksana Turchanina, Reinhard Gratzer   +3 more
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Geochemical characteristics and source analysis of crude oil from Archean buried hill JZ25-1S in Liaoxi Low Uplift

Shiyou shiyan dizhi, 2020
The physical properties, group composition, stable carbon isotope, and biomarker compound distribution characteristics of crude oil in the Archean buried hill were studied and compared with the geochemical characteristics of Paleogene crude oil, in order
Tingting ZHAO, Xiaoping LUO, Piao WU, Yunlong XU, Jian LUO, Yanxu SUN   +5 more
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Geochemical characteristics of the rivers of the Elton region

Water Sector of Russia: PROBLEMS, TECHNOLOGIES, MANAGEMENT
The study of the chemical composition of natural waters used for balneological purposes is a very important task. In addition, this indicator determines the living conditions of living organisms, ensuring the sustainability of ecological systems, which is especially important when considering the problems of small rivers.
Yuliya A Zimina, Tatyana A Shipaeva, Aleksey S Venetsianskiy, Galina A Sroslova, Olga V Zorkina   +4 more
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Geochemical characteristics of produced water from coalbed methane wells and its influence on productivity in Laochang Coalfield, China

Open Geosciences, 2020
The water produced from the coalbed methane (CBM) wells contains abundant geochemical information, which is of great significance in evaluating the productivity of these wells.
Du Mingyang, Wu Caifang, Zhou He, Zhang Shasha, Zhang Erchao   +4 more
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Discovery and geochemical characteristics of Chang 7 source rocks from the eastern margin of a Triassic lacustrine basin in the Ordos Basin

Shiyou shiyan dizhi, 2020
Previous studies of source rocks in the Triassic Yanchang Formation in the Ordos Basin were mainly focused on the inner part of the basin, especially on the depocenter and its surrounding areas.
Zaihua HAN, Jingzhou ZHAO, Xuangang MENG, Zhenzhen SHEN, Rongguo YANG, Heng ZHANG, Feilong GAO   +6 more
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Natural and anthropogenic controls on heavy metal distribution in East China Sea sediments

Frontiers in Marine Science
Understanding the distribution and sources of heavy metals in marine sediments is critical for assessing environmental quality and sedimentary processes.
Jinduo Li
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Geochemical Characteristics of Rare Earth Elements in Deep Geological Profile of Qitianling Intrusion, Hunan Province

Yankuang ceshi, 2014
Baishidu-Feixianzhen profile in Qitianling intrusion of Hunan Province is one of the most important profiles carried out in Sinoprobe. Despite the fact that a large amount of previous research had been carried out using various methods on rare earth ...
HE Han-han, LI Jian-kang, LI Chao, SU Xiao-yun, ZHAO Zhi, ZHANG Yi-jun, WANG Guo-rui   +6 more
doaj  

Process Mineralogy and Acid Leaching Enrichment of P2O5 of the Rare Earth Phosphate Ore in Zhijin, Guizhou Province

Kuangchan zonghe liyong
[Objective]In order to study the technological properties of medium and low-grade phosphate rocks in Xinhua Phosphate Rock Area of Zhijin, Guizhou, [Method]the main mineral components, trace elements and rare earth elements of the ore were studied by X ...
Jianrui WANG, Song ZHANG, Jie ZHANG
doaj   +1 more source