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Building 3D geomodels using XRF-XRT-generated drill core data: The Lovisa-Håkansboda base metal- and Strassa-Blanka iron deposits in Bergslagen, Sweden
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences. Geol Survey Sweden, Dept Mineral Resources, Uppsala, Sweden.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
Lulea Univ Technol, Div Geosci & Environm Engn, Lulea, Sweden.
Geol Survey Sweden, Dept Mineral Resources, Uppsala, Sweden.
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2019 (English)In: LIFE WITH ORE DEPOSITS ON EARTH, PROCEEDINGS OF THE 15TH SGA BIENNIAL MEETING, 2019, VOLS 1-4, SOC GEOLOGY APPLIED MINERAL DEPOSITS-SGA , 2019, Vol. 3, p. 1282-1285Conference paper, Published paper (Refereed)
Abstract [en]

3D geological models based on data from geological field observations, magnetic airborne surveys and combined XRF-XRT scanning of drill core are presented for the Lovisa-Hakansboda and the Strassa-Blanka mineral systems (1.9 - 1.8 Ga). At first, the 3D architecture of several deposits was derived primarily from surface data and mine-level maps. Secondly, geochemical and structural constrains from drill core scanning (XRF-XRT) were used to refine the models locally to a detailed, in-mine scale. The constructed models were then placed in a regional context providing valuable insight on the area's local and regional deformation pattern. All modelled deposits are plunging 50-60 degrees towards the south-southeast reflecting D2 deformation (vertical shearing) during NW-SE-directed shortening and are locally overprinted by D3 (lateral shearing) during N-S-directed shortening.

Place, publisher, year, edition, pages
SOC GEOLOGY APPLIED MINERAL DEPOSITS-SGA , 2019. Vol. 3, p. 1282-1285
National Category
Geology
Identifiers
URN: urn:nbn:se:uu:diva-403030ISI: 000503111600336ISBN: 9780852619643 (print)OAI: oai:DiVA.org:uu-403030DiVA, id: diva2:1388441
Conference
15th SGA Biennial Meeting on Life with Ore Deposits on Earth, AUG 27-30, 2019, Univ Glasgow, Glasgow, SCOTLAND
Funder
EU, Horizon 2020, 730270Available from: 2020-01-24 Created: 2020-01-24 Last updated: 2020-01-24Bibliographically approved

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