Results 61 to 70 of about 158,707 (198)

Dissolved Carbon Dynamics in Artificial Karst Spring Systems: Impacts of Land Use Management

Ecosystem Health and Sustainability
Determining how land use management affects dissolved carbon fluxes in karst springs is important for understanding weathering-related carbon transfer and subsurface carbon dynamics.
Liangxing Shi, Mingyu Shao, Sibo Zeng, Min Zhao, Zaihua Liu, Haibo He, Hailong Sun, Qiufang He, Xing Liu, Guanxia Cai, Yikun Jia, Yirun Zhang, Pan Tao   +12 more
doaj   +1 more source

Ore Genesis of the Baishitouwa Quartz–Wolframite Vein-Type Deposit in the Southern Great Xing’an Range W Belt, NE China: Constraints from Wolframite In-Situ Geochronology and Geochemistry Analyses

, 2022
The Baishitouwa deposit is a medium-scale quartz–wolframite vein-type deposit in the southern Great Xing’an Range tungsten (W) belt. The W mineralization occurs mainly as veins and dissemination within the mica schist of the Mesoproterozoic ...
Wei Xie, Qingdong Zeng, Lingli Zhou, Zeng, Q., Wang, R., Lan, T., Xie, W., Jinjian Wu, Zhou, L., Tingguang Lan, Wu, J., Ruiliang Wang   +11 more
core   +1 more source

Influence of Sediment Cycling on the Rare-Earth Element Geochemistry of Fluvial Deposits (Caculuvar–Mucope, Cunene River Basin, Angola)

, 2021
The rare-earth element (REE) geochemistry of sedimentary deposits has been used in provenance investigations despite the transformation that this group of elements may suffer during a depositional cycle.
Armanda Cruz, Cruz, Armanda, Gomes, António, Leite, Paula, Alberto Gomes, Pedro A. Dinis, Dinis, Pedro A., Leite, Paula Cristina Pinto, Paula Leite, Dinis, Pedro, Gomes, António Alberto   +10 more
core   +1 more source

Sedimentary facies controlled biogeochemical process of biotic extinction and turnover across the Cambrian SPICE event

Communications Earth & Environment
The Steptoean positive carbon isotope excursion (SPICE) event, one of the largest carbon cycle perturbations in the Cambrian, coincides with shallow-shelf-fauna extinction and plankton revolution (critical transition of plankton).
Haozhe Wang, Haizu Zhang, Yiman Zhang, Bin Cheng, Qian Deng, Donghui Wang, Guanyu Zhao, Zewen Liao   +7 more
doaj   +1 more source

Silicate rock weathering and atmospheric/soil CO2 uptake in the Amazon basin estimated from river water geochemistry: seasonal and spatial variations [PDF]

, 2003
Using the data of the CAMREX project (1982–1984) on the water geochemistry of the Amazon river and its main tributaries, it was possible to assess the silicate rock weathering processes and the associated consumption of atmospheric/soil CO2, taking into
Probst, Jean-Luc, Mortatti, Jefferson
core   +1 more source

Ultrafast core-to-core luminescence in BaF2 - LaF3 single crystals

Scientific Reports
This study investigates the mechanisms underlying the ultrafast cross-luminescence observed in BaF2 crystals doped with LaF3. We identified an ultrafast luminescent component with a decay time of approximately 150 ps, which emerges under excitation ...
Roman Shendrik, Evgeny Radzhabov, Alexandra Myasnikova, Viktorija Pankratova, Anatolijs Šarakovskis, Alexander Nepomnyashchikh, Alexander Bogdanov, Veronika Gavrilenko, Ekaterina Kaneva, Dmitry Sofich, Tatiana Garmysheva, Vladimir Pankratov   +11 more
doaj   +1 more source

A Critical Review of the Effectiveness of Biochar Coupled with Arbuscular Mycorrhizal Fungi in Soil Cadmium Immobilization

Journal of Fungi
Cadmium-contaminated soil significantly threatens global food security and human health. This scenario gives rise to significant worries regarding widespread environmental pollution.
Xin Fang, Xinqing Lee, Gratien Twagirayezu, Hongguang Cheng, Hongyu Lu, Shenglan Huang, Linbo Deng, Bo Ji   +7 more
doaj   +1 more source

Imaging element distributions within small marine calcifiers: a NanoSIMS perspective [PDF]

, 2019
Climate change is one of the major challenges of our time. Human induced increase in atmospheric carbon dioxide will, without the effort to decrease carbon emissions world-wide, likely lead to a global mean surface temperature rise exceeding 1.5 °C by ...
General geochemistry, Geochemistry, Roepert, Anne   +2 more
core  

Genetic mechanism of bicyclic sesquiterpanes in Upper Triassic source rock of Yinan 2 well from the Kuqa Depression of Tarim Basin, China

Scientific Reports
Bicyclic sesquiterpanes are widely distributed in terrigenous sedimentary organic matter and are serve as valuable biomarker in the field of organic geochemistry.
Yiman Zhang, Haizu Zhang, Hanyu Deng, Liangliang Wu, Bin Cheng, Yunpeng Wang, Zewen Liao   +6 more
doaj   +1 more source

Applications of Geochemistry to Medical Geology

, 2018
The discipline of geochemistry provides insights into how the natural environment impacts animal and human health and is the basis for the important subdiscipline of medical geochemistry. Among the more important contributions of medical geochemistry are
Finkelman, Robert B.,, Olle Selinus, Plumlee, Geoffrey S.,, Robert B. Finkelman, Geoffrey S. Plumlee, Orem, William H.,, William H. Orem, Selinus, Olle,   +7 more
core   +1 more source