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Methaniferous active faults and seismic cycle in the genesis of the Athabasca giant U deposits: conceptual and numerical investigation

Abstract : The reduction process of uranyles and the graphitic faults dynamics are still unconstrained in the formation of giant unconformity-related uranium deposit of Athabasca. Previous and new data on graphitc faults and mineralization are suggestive of paleo-seismicity, possibly during the mineralizing event. Highlighted by data from current active methaniferous fault, we proposed a new model based on seismic cycle for that mineralization, implying seismic pumping, methane production and discharge. Numerical modeling shows that consequences are of first order on paleo-hydrodynamics.
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https://hal-insu.archives-ouvertes.fr/insu-02281695
Contributor : Isabelle Dubigeon <>
Submitted on : Monday, September 9, 2019 - 2:12:07 PM
Last modification on : Wednesday, September 23, 2020 - 4:40:26 AM

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Yannick Branquet, Philippe Boulvais, Julien Mercadier, Patrick Ledru, Charles Khairallah. Methaniferous active faults and seismic cycle in the genesis of the Athabasca giant U deposits: conceptual and numerical investigation. 15th Biennial Meeting of the Society for Geology Applied to Mineral Deposits, Aug 2019, Glasgow, United Kingdom. ⟨insu-02281695⟩

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