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The structural sett...
The structural setting of the Barsele Au deposit, Sweden
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- Bauer, Tobias E., Associate professor, 1982- (författare)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Imana, Marcello (författare)
- Agnico Eagle Sweden AB, Storuman, Sweden
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- Hoglund, Kare (författare)
- Agnico Eagle Sweden AB, Storuman, Sweden
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visa fler...
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- Thomas, Helen (författare)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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visa färre...
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(creator_code:org_t)
- University of Glasgow Publicity Services, 2019
- 2019
- Engelska.
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Ingår i: Proceedings of the 15th SGA Biennial Meeting, 27-30 August. - : University of Glasgow Publicity Services. ; , s. 627-630
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- The Barsele Au deposit is hosted in Paleoproterozoic rocks that were subject to multiple deformation events during the Svecofennian orogeny 1.9-1.8 Ga ago. Rocks have been subjected to an approx. N-S-directed extensional event (1.89 Ga) potentially responsible for the formation of VMS deposits. The crustal extension was followed by a compressional event under ductile conditions and related basin inversion (D-2; 1.87 Ga) and overprinted by a brittle event at 1.8 Ga (D-3). The distribution of alteration minerals and veins suggests multiple phases of fluid flow and remobilisation. The latest phase of enrichment appears to be coupled to low-angle thrusting from ESE and brittle reactivation of earlier structures with emplacement of quartz veins along fault planes and tensile structures in an oblique Riedel system.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Nyckelord
- Ore Geology
- Malmgeologi
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)