A new phenomenological model for annealing of fission tracks in apatite : laboratory data fitting and geological benchmarking
ARTIGO
Inglês
Agradecimentos: This work has been funded by Conselho Nacional de Desenvolvimento Científco e Tecnológico (CNPq), Brazil through the research grant #308192/2019-2. Authors are indebted to the three anonymous reviewers for their criticisms and suggestions that truly helped us improving the quality of...
Agradecimentos: This work has been funded by Conselho Nacional de Desenvolvimento Científco e Tecnológico (CNPq), Brazil through the research grant #308192/2019-2. Authors are indebted to the three anonymous reviewers for their criticisms and suggestions that truly helped us improving the quality of our paper.
Abstract: Rana track annealing model 2007, based on an Arrhenius approach, is significantly modified, including new assumptions, fitting parameters, and analysis, to yield a new phenomenological model for annealing of fission tracks in apatite. Construction and optimization of the new six parameter...
Abstract: Rana track annealing model 2007, based on an Arrhenius approach, is significantly modified, including new assumptions, fitting parameters, and analysis, to yield a new phenomenological model for annealing of fission tracks in apatite. Construction and optimization of the new six parameter model have been described in detail. The model shows a hybrid behavior. In Arrhenius plot, for higher temperatures (laboratory data included), iso-annealing lines are curved while, for low temperatures (geological time scale), iso-annealing lines become parallel straight lines. This is a new feature for any such model and has produced promising results. C-axis projected lengths from laboratory experiments on Durango apatite are employed to find model parameters. KTB borehole fission-track data are added to build the temperature function that modifies the original equation. Partial annealing zone (PAZ), closure temperature (T-C) and total annealing temperature (T-A) were calculated and compared to geological benchmarks. The predictions of the present model agreed well with low and high temperature benchmarks. PAZ, T-C and T-A predictions were also compared to the Fanning Curvilinear Arrhenius model predictions, resulting in good agreement. The present model is flexible enough to be applied to other fission- track systems, like zircon, muscovite and titanite
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
308192/2019-2
Fechado
A new phenomenological model for annealing of fission tracks in apatite : laboratory data fitting and geological benchmarking
A new phenomenological model for annealing of fission tracks in apatite : laboratory data fitting and geological benchmarking
Fontes
Physics and chemistry of minerals Vol. 48, n. 5 (May, 2021), n. art. 21, p. 1-13 |