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RESEARCH PRODUCT
Microstructure, porosity and mineralogy around fractures in Olkiluoto bedrock
Jussi TimonenJukka KuvaIsmo AaltonenMarkko MyllysTuomas TurpeinenAntero LindbergMarja Siitari-kauppisubject
geographygeography.geographical_feature_categoryta114Water flowBedrock0207 environmental engineeringBoreholeMineralogyGeology02 engineering and technology010502 geochemistry & geophysicsGeotechnical Engineering and Engineering GeologyMicrostructure01 natural sciencesPetrographyFracture (geology)020701 environmental engineeringPorosityGeology0105 earth and related environmental sciencesWaste disposaldescription
3D distributions of minerals and porosities were determined for rock-core samples that included water-conducting fractures. The analysis of these samples was performed using conventional petrography methods, C-14-PMMA porosity analysis and X-ray tomography. It seems that the properties of rock around a water-conducting fracture depend on so many uncorrelated factors that no clear pattern emerged even for rock samples with a given type of fracture. We can conclude, however, that the present combination of methods can be used to infer novel structural information about alteration zones adjacent to fracture surfaces.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-06-01 | Engineering Geology |