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3D-modelling of the Central Skellefte District, Sweden
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
2009 (English)In: Smart science for exploration and mining: proceedings of the 10th Biennial SGA Meeting, Townsville, Australia 17th-20th August 2009 / [ed] Patrick Williams, James Cook University of North Queensland , 2009Conference paper (Refereed)
Abstract [en]

The central part of the Palaeoproterozoic Skellefte District in northern Sweden is host to several VMS deposits. This area is dominated by upright folds with axial surfaces trending WNW - ESE. Northeast - SW trending faults crosscut WNW - ESE trending faults and impart a distinct fault pattern. Subvertical stretching as expressed by subvertical mineral lineations as well as gently W-plunging mineral lineations parallel to the F2 fold axes indicate not only significant vertical movement, but also pronounced lateral movement. The faults formed in an extensional stage and were reactivated during a compressional stage oblique to the earlier phase. This crustal shortening caused folding and development of the main foliation. Overturned, tight to isoclinal folds within the Vargfors meta-sediments coincide with 1st and 2nd order faults and are considered to be related to reactivation of the early normal and transfer faults. A three dimensional model taking into account the structures was constructed using the GoCAD 3D-modelling software.

Place, publisher, year, edition, pages
James Cook University of North Queensland , 2009.
Research subject
Ore Geology
Identifiers
URN: urn:nbn:se:ltu:diva-39370Local ID: e16b7ae0-be1d-11de-b769-000ea68e967bISBN: 9780980558685OAI: oai:DiVA.org:ltu-39370DiVA: diva2:1012881
Conference
Biennial SGA Meeting : 17/08/2009 - 20/08/2009
Note
Godkänd; 2009; 20091021 (ysko)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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