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Crustal Scale Shear Zones Controlling Grade and Tonnage of VMS Deposits in the Skellefte District, Northern Sweden
Luleå tekniska universitet, Geovetenskap och miljöteknik.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences. Luleå tekniska universitet.ORCID iD: 0000-0003-3879-3897
2015 (English)In: Mineral Resources in a Sustainable World / [ed] A.S. Andre-Mayer; M. Cathelineau; P. Muchez; E. Pirard; S. Sindern, 2015, p. 45-48Conference paper, Published paper (Refereed)
Abstract [en]

The Skellefte district in northern Sweden hosts abundant Paleoproterozoic, volcanic-hosted massive sulfide (VMS) deposits. The deposits formed due to pull apart basin formation in a volcanic arc setting and utilized the syn-extensional faults as fluid conduits. By comparing the structural setting in distinct structural domains with the tonnage and Cu, Au, and Ag grades a clear coupling between VMS deposits and the size of structures becomes evident. This shows how major crustal fault zones acted as fluid conduits for the ore forming hydrothermal fluids during an extensional phase. The same structures were subsequently re-activated as shear zones and possibly enhanced secondary enrichment processes.

Place, publisher, year, edition, pages
2015. p. 45-48
National Category
Geology
Research subject
Ore Geology
Identifiers
URN: urn:nbn:se:uu:diva-327749Local ID: fbcae1c8-59ba-40a1-a5b1-fcfbef6cb8dcISBN: 978-2-85555-066-4 (print)OAI: oai:DiVA.org:uu-327749DiVA: diva2:1131070
Conference
SGA Biennial Meeting on Mineral Resources in a Sustainable World : 24/08/2015 - 27/08/2015
Note

Validerad; 2016; Nivå 1; 20160621 (andbra)

Available from: 2016-10-03 Created: 2017-08-11

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