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Development of an isotopic fractionation and filiation module in the reactive transport code HYTEC

By Caroline De Dieuleveult, Vincent Lagneau and Juan Hidalgo

Abstract

International audienceThe increasing place of numerical modelling in the geosciences, as in numerous fields is well known. Owing to rapid progress in computer sciences and hardware, more and more complex systems, i.e. also more and more realistic ones, can be simulated. HYTEC is a versatile coupled reactive transport code, currently used for several applications, such as groundwater pollution studies, safety assessment of nuclear waste disposals, CO2 storage, geochemical studies or interpretation of laboratory column experiments. This work presents a newly developed functionality in HYTEC, which allows taking into account isotopic speciation and filiation. Variations in isotopic compositions give useful information for the geosciences. They can help track the evolution of aqueous and mineral species, mixing of different origin fluids, and are helpful for dating. Then, environmental isotopes experiences and modelling complete geochemical and physical hydrology studies

Topics: reactive transport, isotope, isotopic fractionation, radioactive decay, [ SDU.STU ] Sciences of the Universe [physics]/Earth Sciences, [ SDE ] Environmental Sciences
Publisher: HAL CCSD
Year: 2011
OAI identifier: oai:HAL:hal-00624764v1
Provided by: Hal-Diderot

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