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Heterogeneities at Thin Section Scale in Ypresian and Rupelian Clay in the Belgian Subsurface
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Fifth EAGE Shale Workshop, May 2016, Volume 2016, p.1 - 5
Abstract
Summary
Thin sections of the plastic Ieper Group and Boom Formation clay have shown a marked heterogeneity due to layering, erosion, bioturbation and pyrite distribution. In the most clay-enriched samples, compartments delineated by primary thin fissures are present and associated small drag lines indicate small displacement. Fissures and drag lines are impregnated with early pyrite pointing to permeable pathways.
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