Contribution of studies of sub-seismic fracture populations to paleo-hydrological reconstructions (Bighorn Basin, USA)

Beaudoin, N. , Lacombe, O., Bellahsen, N. and Emmanuel, L. (2013) Contribution of studies of sub-seismic fracture populations to paleo-hydrological reconstructions (Bighorn Basin, USA). Procedia Earth and Planetary Science, 7, pp. 57-60. (doi: 10.1016/j.proeps.2013.03.198)

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Abstract

This work reports on the reconstruction of the paleo-hydrological history of the Bighorn Basin (Wyoming, USA) and illustrates the advantages and drawbacks of using sub-seismic diffuse fracture populations (i.e., micrometric to metric joints and veins forming heterogeneous networks), rather than fault zones, to characterize paleo-fluid systems at both fold and basin scales. Because sub-seismic fractures reliably record the successive steps of deformation of folded rocks, the analysis of the geochemical signatures of fluids that precipitated in these fractures reveals the paleo-fluid history not only during, but also before and after, folding. The present study also points out the need for considering pre-existing fluid systems and basin-scale fluid migrations to reliably constrain the evolution of fluid systems in individual folds.

Item Type:Articles
Additional Information:Proceedings of the Fourteenth International Symposium on Water-Rock Interaction, WRI 14.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Beaudoin, Dr Nicolas
Authors: Beaudoin, N., Lacombe, O., Bellahsen, N., and Emmanuel, L.
College/School:College of Science and Engineering > School of Geographical and Earth Sciences
Journal Name:Procedia Earth and Planetary Science
Publisher:Elsevier
ISSN:1878-5220
ISSN (Online):1878-5220
Copyright Holders:Copyright © 2013 The Authors
First Published:First published in Procedia Earth and Planetary Science 7:57-60
Publisher Policy:Reproduced under a Creative Commons License

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