Natural tracer profiles across argillaceous formations

M Mazurek, P Alt-Epping, A Bath, T Gimmi… - Applied …, 2011 - Elsevier
Argillaceous formations generally act as aquitards because of their low hydraulic
conductivities. This property, together with the large retention capacity of clays for cationic …

[HTML][HTML] Swiss deep drilling campaign 2019–2022: Geological overview and rock properties with focus on porosity and pore-space architecture

M Mazurek, T Gimmi, C Zwahlen, L Aschwanden… - Applied …, 2023 - Elsevier
A recently completed deep drilling campaign, comprising 9 deep boreholes penetrating the
Mesozoic sedimentary sequence of northern Switzerland, yielded> 6 km of drillcore. One of …

Ionic transport in nano-porous clays with consideration of electrostatic effects

C Tournassat, CI Steefel - Reviews in Mineralogy and …, 2015 - pubs.geoscienceworld.org
The mineralogical and chemical properties of clays have been the subject of longstanding
study in the research community—in fact, entire journals are devoted to the topic. In the field …

ANDRA underground research laboratory: interpretation of the mineralogical and geochemical data acquired in the Callovian–Oxfordian formation by investigative …

E Gaucher, C Robelin, JM Matray, G Negrel… - … of the Earth, Parts A/B/C, 2004 - Elsevier
Under the ANDRA Meuse/Haute Marne underground research laboratory scientific
programme, two boreholes (EST204 and EST205) were drilled to a depth of 510 m for the …

Geochemistry and the understanding of ground-water systems

PD Glynn, LN Plummer - Hydrogeology Journal, 2005 - Springer
Geochemistry has contributed significantly to the understanding of ground-water systems
over the last 50 years. Historic advances include development of the hydrochemical facies …

Pore morphology and distribution in the Shaly facies of Opalinus Clay (Mont Terri, Switzerland): Insights from representative 2D BIB–SEM investigations on mm to nm …

ME Houben, G Desbois, JL Urai - Applied clay science, 2013 - Elsevier
We used Broad-Ion-Beam polishing in combination with Scanning Electron Microscopy to
study the microstructure and porosity in the Shaly facies of Opalinus Clay (northern …

[HTML][HTML] Chloride accessible porosity fractions across the Jurassic sedimentary rocks of northern Switzerland

C Zwahlen, T Gimmi, A Jenni, M Kiczka, M Mazurek… - Applied …, 2024 - Elsevier
The Jurassic clay-rich sedimentary sequence in northern Switzerland was investigated in
the context of nuclear waste disposal. Tracer profiles across this sequence play an important …

A robust model for pore-water chemistry of clayrock

EC Gaucher, C Tournassat, FJ Pearson, P Blanc… - … et Cosmochimica Acta, 2009 - Elsevier
The chemistry of pore water is an important property of clayrocks being considered as host
rocks for long-term storage of radioactive waste. It may be difficult, if not impossible, to obtain …

A comparative study of representative 2D microstructures in Shaly and Sandy facies of Opalinus Clay (Mont Terri, Switzerland) inferred form BIB-SEM and MIP …

ME Houben, G Desbois, JL Urai - Marine and Petroleum Geology, 2014 - Elsevier
A combination of Broad-Ion-Beam (BIB) polishing and Scanning Electron Microscopy (SEM)
has been used to study qualitatively and quantitatively the microstructure of Opalinus Clay in …

Reconstructing a hydrogen-driven microbial metabolic network in Opalinus Clay rock

A Bagnoud, K Chourey, RL Hettich, I De Bruijn… - Nature …, 2016 - nature.com
Abstract The Opalinus Clay formation will host geological nuclear waste repositories in
Switzerland. It is expected that gas pressure will build-up due to hydrogen production from …