NDLI: Prediction of a fracture system from an excavated ditch in the central Caledonides, Sweden

Content Provider	Springer Nature Link
Author	Loorents, K. J. Stigh, J. Björklund, L.
Copyright Year	2000
Abstract	Prospecting for the dimension stone Offerdalsskiffer in the Finnsäter area, Offerdal Nappe, Swedish Caledonides, is mainly undertaken where no bedrock is exposed in order to assess the likely quality of the rock and the effective recovery ratio. A knowledge of the local fracture system is therefore required. The paper discusses a case study undertaken in the Finnsäter area of Sweden where ditch mapping was carried out to predict the fracture system. A comparsion was made of a fracture map extrapolated from the ditch mapping data and that prepared from a larger cleared bedrock surface in order to assess its potential for quarry viability. La prospection de roches dimensionnelles dans la région de Finnsäter (nappe d'Offerdal, Calédonides de Suède) est réalisée dans une région où le substratum n'affleure pas et ne permet donc pas d'évaluer la qualité probable de la roche et le taux de récupération effectif. Il est donc nécessaire de connaître le système local de fracturation. L'article présente une étude de cas réalisée dans la région de Finnsäter où une cartographie à partir de tranchées a été réalisée pour prévoir le système de fracturation. Une comparaison a été faite entre une carte de fracturation extrapolée à partir des données d'une cartographie de tranchées et une carte établie à partir d'une grande surface de substratum dégagée, afin d'évaluer si la méthode de cartographie permet de se prononcer sur l'exploitabilité en carrière.
Starting Page	159
Ending Page	165
Page Count	7
File Format	PDF
ISSN	14359529
Journal	Bulletin of the International Association of Engineering Geology - Bulletin de l'Association Internationale de Géologie de l'Ingénieur
Volume Number	58
Issue Number	2
e-ISSN	14359537
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-02-22
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Geology Geotechnical Engineering and Engineering Geology

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