Results 21 to 30 of about 1,618 (108)

Chemical and Noble Gas Isotope Compositions of Formation Gases from a 3 km Deep Scientific Borehole in the Koyna Seismogenic Zone, Western India

Geofluids, 2019
A 3 km deep research borehole KFD1 was drilled in the Koyna reservoir-triggered seismicity region, Western India, between December 2016 and May 2017.
Nagaraju Podugu, Satrughna Mishra, Thomas Wiersberg, Sukanta Roy   +3 more
doaj   +1 more source

Ultrafast Biodiesel Synthesis via K2CO3‐Supported Mg‐Al Hydrotalcite Catalyst With Tailored Basicity and Mesoporous Structure

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT With the increasing global energy demand and the growing prominence of environmental issues, biodiesel has garnered significant attention as a renewable, low‐emission green energy source. Conventional hydrotalcite‐based catalysts often suffer from insufficient basicity and limited accessibility of active sites, leading to relatively long ...
Jingdi Zheng, Kefan Wang, Chunhui Wang, Xiang Li, Ying Tang   +4 more
wiley   +1 more source

Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China

Journal of Natural Gas Geoscience
The Ordos Basin is the largest natural gas producing region in China. Recent discoveries of two helium-rich natural gas fields (Dongsheng and Qingyang) shows promising helium resource potential.
Liyong Fan, Jianshe Wei, Aiping Hu, Yuhong Li, Linze Xie, Tao Jiang, Yuxuan Zhang, Shangwei Ma   +7 more
doaj   +1 more source

Determination of selenium speciation in the muscle, kidney, and liver from different animals treated with different selenium supplements by HPLC‐ICP‐MS

Animal Research and One Health, EarlyView.
Dietary selenium (Se) deficiency is recognized as a global problem, and exogenous Se supplementation can effectively enrich its levels in animal bodies. Offal tissues are equally important as meat in Se enrichment. Varying properties among Se species require information beyond total Se concentration to fully evaluate health risk/benefits.
Xiaoqing Guo, Xueting Jia, Kai Zhang, Chaohua Tang, Xueyang Si, Bo He, Manus Carey, Lynda S. Perkins, Qingyu Zhao, Junmin Zhang   +9 more
wiley   +1 more source

Characteristics of effective helium source rocks and releasing mechanism of helium

Journal of Natural Gas Geoscience
Different helium source rocks exhibit varying characteristics, including differences in the content and occurrence states of precursor elements such as uranium (U) and thorium (Th).
Xiaofeng Wang, Dong Zhao, Dongdong Zhang, Xiaofu Li, Keyu Chen, Wenhui Liu   +5 more
doaj   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

Enrichment factors and play fairway mapping of helium in typical zones of the Ordos Basin

Meitian dizhi yu kantan
BackgroundThe Ordos Basin enjoys abundant natural gas resources, which generally bear helium, making this basin hold great helium resource potential. In this case, detailed exploration is essential for the future transition from natural gas-helium joint ...
Jianrong GAO, Shizhen TAO, Xiangbai LIU, Wei YANG, Zhenyu ZHAO, Xiuyan CHEN, Wanglin XU, Chunlin ZHANG, Wei SONG, Yue CHEN, Junping HUANG, Zhanrong MA   +11 more
doaj   +1 more source

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Implications of helium accumulation models in helium-rich basins in China for the enrichment and exploration of helium in coal measures

Meitian dizhi yu kantan
BackgroundHelium is a strategic resource in serious short supply in China, and intensifying its exploration is crucial to national resource security.
Yunbo LI, Chengtao WANG, Dangyu SONG, Xiaowei SHI, Rongqi WANG   +4 more
doaj   +1 more source

Characteristics of helium accumulation in the Guanzhong Basin, China

China Geology, 2019
: Guanzhong Basin is located in the transitional zone between the Qinling orogenic belt and the Ordos plateau. Analyses of drill and geothermal wells depict that the Guanzhong Basin has abundant gas, and its major source rocks are the U-rich granites. In
Min Dong, Zong-xiu Wang, Hui Dong, Li-cheng Ma, Lin-yan Zhang   +4 more
doaj   +1 more source