Application of Geochemical Tracers and Isotopic for Investigation of Recharge and Salinization of Water in the Menzel Bourguiba Aquifer, Northeast of Tunisia

2019 ◽  
pp. 165-167
Author(s):  
Mohsen Ben Alaya ◽  
Safouan Ben Ammar ◽  
Jean-Denis Taupin ◽  
Mohamed Khouatmia ◽  
Raouf Jbeali ◽  
...  
Keyword(s):  
Geochemical Tracers

scholarly journals Biogeochemical Controls on the Redox Evolution of Earth’s Oceans and Atmosphere

Elements ◽  
2020 ◽  
Vol 16 (3) ◽  
pp. 191-196 ◽  
Author(s):  
Christopher T. Reinhard ◽  
Noah J. Planavsky
Keyword(s):  
Redox State ◽  
Modeling Tools ◽  
Evolutionary Trajectory ◽  
Geochemical Tracers ◽  
Atmosphere System ◽  
Ocean Atmosphere ◽  
Dramatic Shift ◽  
Redox Evolution

The redox state of Earth’s atmosphere has undergone a dramatic shift over geologic time from reducing to strongly oxidizing, and this shift has been coupled with changes in ocean redox structure and the size and activity of Earth’s biosphere. Delineating this evolutionary trajectory remains a major problem in Earth system science. Significant insights have emerged through the application of redox-sensitive geochemical systems. Existing and emerging biogeochemical modeling tools are pushing the limits of the quantitative constraints on ocean–atmosphere redox that can be extracted from geochemical tracers. This work is honing our understanding of the central role of Earth’s biosphere in shaping the long-term redox evolution of the ocean–atmosphere system.

scholarly journals Assessment of Pb and Zn sources in the Orne watershed (Moselle basin, France) using isotopes and geochemical tracers

2021 ◽  
Author(s):  
Ayoub Khelili ◽  
Christophe Cloquet ◽  
Christophe Gauthier ◽  
Renaud Gley ◽  
Benoit Losson ◽  
...  
Keyword(s):  
Geochemical Tracers

Organic Geochemical Tracers in Estuaries

2001 ◽  
Vol 32 (4) ◽  
pp. 451 ◽  
Author(s):  
T.S. Bianchi ◽  
E.A. Canuel
Keyword(s):  
Geochemical Tracers

Application of Geochemical Tracers to Fluvial Sediment

2015 ◽  
Author(s):  
Jerry R. Miller ◽  
Gail Mackin ◽  
Suzanne M. Orbock Miller
Keyword(s):  
Fluvial Sediment ◽  
Geochemical Tracers

Modelling of Geochemical Tracers in the Ocean

1990 ◽  
pp. 233-267 ◽  
Author(s):  
Ernst Maier-Reimer ◽  
Robert Bacastow
Keyword(s):  
Geochemical Tracers

Determining Hydrologic Pathways of Streamflow Using Geochemical Tracers in a Claypan Watershed

2020 ◽  
Author(s):  
Fengjing Liu ◽  
Robert N. Lerch ◽  
John Yang ◽  
Greg Peters
Keyword(s):  
Geochemical Tracers

scholarly journals The role of unsaturated zone in estimating groundwater recharge in arid and semiarid areas as depicted by geochemical tracers

2019 ◽  
Vol 98 ◽  
pp. 12007
Author(s):  
Tianming Huang ◽  
Baoqiang Ma ◽  
Yin Long ◽  
Zhonghe Pang
Keyword(s):  
Groundwater Recharge ◽  
Unsaturated Zone ◽  
Surface Boundary ◽  
Recharge Rate ◽  
Semiarid Area ◽  
Near Surface ◽  
Geochemical Tracers ◽  
Semiarid Areas ◽  
Arid And Semiarid Areas ◽  
Arid And Semiarid

In arid and semiarid area, the recharge rate is relatively limited and the unsaturated zone (UZ) is commonly thick. The moisture in the UZ may represent the water infiltrating from precipitation during the past decades to thousands of years. Therefore, the multiple geochemical tracers in soil moisture, including Cl (chloride mass balance), 3H (tritium peak displacement), NO3, 2H, 18O, can be used to estimate diffuse recharge rate and related recharge characteristics. Based on 45 UZ profiles with maximum depth of 62 m in the Ordos Basin in NW China, a typical arid and semiarid area, we has used multiple geochemical tracers to study the following recharge informations: (1) reconstruction of groundwater recharge history, (2) determination of groundwater recharge mechanism, and (3) assessment of impact of vegetation changes on groundwater recharge. The results show that the soil texture (epically the shallow soil), vegetation and precipitation mainly control the recharge rate. This study also found that shallow groundwater in arid and semiarid areas is often not in equilibrium with near-surface boundary conditions. To estimate present recharge information, the UZ must be considered. The whole recharge process from precipitation to groundwater cannot be well understood unless the UZ have been included in arid and semiarid areas.

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