Results 11 to 20 of about 113,420 (306)

New Applications in Gas Geochemistry

Geofluids, 2020
Gases present in the Earth crust are important in various branches of human activities. Hydrocarbons are a significant energy resource, helium is applied in many high-tech instruments, and studies of crustal gas dynamics provide insight in the geodynamic
Francesco Italiano, Andrzej Solecki, Giovanni Martinelli, Yunpeng Wang, Guodong Zheng   +4 more
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Applied Geochemistry with Case Studies on Geological Formations, Exploration Techniques and Environmental Issues [PDF]

, 2020
Geochemistry has become an essential subject to understand our origins and face the challenges that humanity will meet in the near future. This book presents several studies that have geochemistry as their central theme, from the description of different

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Soil pH and aridity influence distributions of branched tetraether lipids in grassland soils along an aridity transect [PDF]

, 2022
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are membrane lipids of certain soil bacteria, and their relative distributions are used as a proxy for air temperature and soil pH.
Guo, Jingjing, Liu, Nana, Peterse, Francien, Zhang, Xinying, Ma, Wenhong, Organic geochemistry & molecular biogeology, Feng, Xiaojuan, Wang, Zhiheng, Hu, Huifeng, Organic geochemistry, Ma, Tian   +10 more
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Environment and Geochemistry of Sediments

, 2023
This reprint considers a vast range of questions devoted to environmental geochemistry. The themes of the research cover different problems of the geochemistry of sediments, such as the reconstruction of the paleoenvironment in the lake basins, climate ...

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Editorial: Gas Geochemistry: New Progresses and Applications

, 2022
Geosphere is constantly crossed by fluid fluxes of varying flow velocity and chemical composition. The development of gas geochemistry techniques over the last 50 years allowed of gaining a significant understanding of gas accumulations, gas fluxes ...
Zheng, Guodong, Martinelli, Giovanni, Wang, Yunpeng, Italiano, Francesco   +3 more
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Petrogenesis and metallogeny of the Dongguashan Cu-Au deposit in the Tongling ore-cluster region, the Lower Yangtze River Metallogenic Belt: Constraints from geochemistry and geochronology

, 2021
The Dongguashan Cu-Au deposit located in the eastern portion of the Tongling mining district, the Lower Yangtze River Metallogenic Belt (LYRB), Eastern China is a typical one associated with the Qingshanjiao quartz monzodiorite, including porphyry, skarn,
Zhang, Jiandong, Yang, Xiaoyong, Liu, Zhongfa, Li, Huan, Yu, Zhiqiang, Liu, Lei   +5 more
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Light Mo Isotopes of Post‐Collisional Ultrapotassic Rocks in Southern Tibet Derived From Subducted Indian Continental Crust

Geochemistry, Geophysics, Geosystems, 2023
Recycling of molybdenum isotopes in continental subduction zones remains debated. In this contribution, we re‐visit the Mo isotope compositions of the Sailipu post‐collisional ultrapotassic rocks in the Himalaya‐southern Tibet orogen. These ultrapotassic
Miao‐Yan Zhang, Cheng‐Cheng Huang, Lu‐Lu Hao, Yue Qi, Qiang Wang, Andrew C. Kerr, Gang‐Jian Wei, Jie Li, Jin‐Long Ma, Lin Ma, Jing‐Jing Fan   +10 more
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A review of machine learning in geochemistry and cosmochemistry: Method improvements and applications

, 2022
The development of analytical and computational techniques and growing scientific funds collectively contribute to the rapid accumulation of geoscience data.
Wen, Tao, Zhang, Shuang, He, Yuyang, Ma, Xiaogang, Zhu, Yueqin, Zhou, You, Huang, Fang, 何雨旸, Zou, Xinyu   +8 more
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Concentration, source identification, and exposure risk assessment of PM2.5-bound parent PAHs and nitro-PAHs in atmosphere from typical Chinese cities

Scientific Reports, 2017
Sixteen parent PAHs and twelve nitro-PAHs were measured in PM2.5 samples collected over one year (2013–2014) at nine urban sites in China. During the sampling period, concentrations of individual nitro-PAHs were one or two orders of magnitude lower than ...
Di Liu, Tian Lin, Jabir Hussain Syed, Zhineng Cheng, Yue Xu, Kechang Li, Gan Zhang, Jun Li   +7 more
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Composition and structure of natural organic matter through advanced nuclear magnetic resonance techniques

Chemical and Biological Technologies in Agriculture, 2017
Natural organic matter (NOM) plays important roles in biological, chemical, and physical processes within the terrestrial and aquatic ecosystem. Despite its importance, a clear and exhaustive knowledge on NOM chemistry still lacks.
Dainan Zhang, Dandan Duan, Youda Huang, Yu Yang, Yong Ran   +4 more
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