H51J:
Isotope Proxies in the Critical Zone: Deciphering Time-Dependent Processes in Weathering Profile, Fingerprinting of Surface and Groundwater and Residence Time Assessment Posters


Session ID#: 8675

Session Description:
More attention must be paid to on-going evolution of the critical zone, with respect to soils fertility, erosion rate, water provenance, recharge processes and geochemical reactions, transit times, flow paths and coupled ecohydrological processes. These are crucial factors in order to estimate the vulnerability and the recovery-time of the critical zone to assess soil erosion rates, to plan the sustainable use of water resources, and to protect ecohydrological systems under climate or land use change. This session focuses on the application of traditional and innovative isotope methods to identify the sources, dynamics and chemistry of water, and to improve models to quantify external influences (human activities) and global change (erosion, weathering rate, water transfer) in the critical zone.
Primary Convener:  Philippe Jean Negrel, BRGM, Laboratories Division, Cedex, France
Conveners:  Emmanuelle Petelet-Giraud, BRGM, Orleans, France, Andreas J Hartmann, University of Freiburg, Chair of Hydrological Modeling and Water Resources, Freiburg, Germany and Francois Chabaux, LHyGeS-UMR7517, EOST, INSU/CNRS, Strasbourg, France
Chairs:  Philippe Jean Negrel, BRGM, Laboratories Division, Cedex, France, Francois Chabaux, University of Strasbourg, Strasbourg Cedex, France, Emmanuelle Petelet-Giraud, BRGM, Orleans, France and Andreas J Hartmann, University of Freiburg, Chair of Hydrological Modeling and Water Resources, Freiburg, Germany
OSPA Liaison:  Andreas J Hartmann, University of Freiburg, Chair of Hydrological Modeling and Water Resources, Freiburg, Germany

Cross-Listed:
  • B - Biogeosciences
  • EP - Earth and Planetary Surface Processes
Index Terms:

0454 Isotopic composition and chemistry [BIOGEOSCIENCES]
1039 Alteration and weathering processes [GEOCHEMISTRY]
1815 Erosion [HYDROLOGY]
1832 Groundwater transport [HYDROLOGY]

Abstracts Submitted to this Session:

In-situ measurements of U-series nuclides by electron microprobe on zircons and monazites from Gandak river sediments (78561)
Clio Bosia, CNRS, Paris Cedex 16, France, Etienne Deloule, CRPG-Nancy, Vandoeuvre-Les-Nancy, France, Christian France-Lanord, Organization Not Listed, Washington, DC, United States and Francois Chabaux, University of Strasbourg, Strasbourg Cedex, France
Analysis of U-series Nuclides and in situ Be in a Weathering Profile from the Strengbach Catchment (Vosges Massif, France) (78504)
Julien Ackerer1, Francois Chabaux1, Jerome van der Woerd1 and Philippe Jean Negrel2, (1)University of Strasbourg, Strasbourg Cedex, France, (2)BRGM, Laboratories Division, Cedex, France
Lead isotopes tracing the life cycle of a catchment: From source rock via weathering to human impact (63269)
Philippe Jean Negrel1, Emmanuelle Petelet-Giraud2, Catherine Guerrot1 and Romain Millot3, (1)BRGM, Laboratories Division, Cedex, France, (2)BRGM, Orleans, France, (3)BRGM, French Geological Survey, Orleans, France
Li isotope geochemical study on weathering of granite in Longnan, Jiangxi Province, South China (Invited) (60941)
Wenjing Liu1,2, Zhifang Xu1,3, Tong Zhao1, Chong Yu1 and Li Zhou1, (1)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (2)Pennsylvania State University Main Campus, Earth & Environmental Systems Institute, College of Earth and Mineral Sciences, University Park, PA, United States, (3)IGG Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Measuring U-series Disequilibrium in Weathering Rinds to Study the Influence of Environmental Factors to Weathering Rates in Tropical Basse-Terre Island (French Guadeloupe) (71041)
Jiye Guo, University of Texas at El Paso, El Paso, TX, United States, Lin Ma, University Of Washington, Seattle, WA, United States, Peter B Sak, Dickinson College, Carlisle, PA, United States, Jerome Gaillardet, Institut de Physique du Globe de Paris, Paris, France, Francois J Chabaux, University of Strasbourg, Strasbourg Cedex, France and Susan L Brantley, Pennsylvania State University Main Campus, Earth & Environmental Systems Institute, University Park, PA, United States
U Activity Ratios in Surface Waters as Tracers and Chronometers of Water Transfers in the Critical zone; (73006)
Francois Chabaux, University of Strasbourg, Strasbourg Cedex, France
Modeling Hydrologic Transport through the Critical Zone: Lessons from Catchment-Scale and Lysimeter Studies (Invited) (60394)
Paolo Benettin1, Pierre Queloz2, Scott W Bailey3, Kevin J McGuire4, Andrea Rinaldo2 and Gianluca Botter5, (1)Swiss Federal Institute of Technology Lausanne, ENAC/IIE/ECHO, Lausanne, Switzerland, (2)Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland, (3)US Forest Service Durham, Northern Research Station, Durham, NH, United States, (4)Virginia Tech, Forest Resources and Environmental Conservation/Virginia Water Resources Research Center, Blacksburg, VA, United States, (5)University of Padua, Padua, Italy
The isotopic evolution of a raindrop through the critical zone (85030)
Jasper Oshun1,2, William E Dietrich3, Todd E Dawson4, Daniella Marie Rempe5 and Inez Y Fung5, (1)Brown University, Providence, RI, United States, (2)Universidad de Ingeniería y Tecnología, Ingeniería Ambiental, Lima, Peru, (3)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (4)University of California Berkeley, Center for Stable Isotope Biogeochemistry, Berkeley, CA, United States, (5)University of California Berkeley, Berkeley, United States
Study of Groundwater Circulation Using Stable Isotopes : the Example of the Punaruu Watershed (Tropical Oceanic Island of Tahiti, French Polynesia) (78821)
Lydie Sichoix1, Anthony Hildenbrand2, Christelle Marlin2, Pierre-yves Gillot2, Lucie Pheulpin3 and Jean-Pierre Barriot3, (1)University of French Polynesia, Geodesy Observatory of Tahiti - GEPASUD Laboratory, Faa'a, French Polynesia, (2)Lab. GEOPS / University Paris-Sud, Orsay Cedex, France, (3)University of French Polynesia, Faa'a, French Polynesia
Hydrochemical and isotopic characteristics of selected geothermal groundwater in Korea to understand groundwater circulation. (76667)
Hanna Choi1, Nam C Woo2, Jize Piao3 and Sunjoo Cho1, (1)Yonsei University, Seoul, Korea, Republic of (South), (2)Yonsei University, Seoul, South Korea, (3)Yonsei University, Department of Earth System Science, Seoul, South Korea

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