A3 Vertaisarvioitu kirjan tai muun kokoomateoksen osa
The Skellefte District
Tekijät: Bauer T, Skyttä P, Hermansson T, Dehghannejad M, Tavakoli S
Toimittaja: Weihed P
Julkaisuvuosi: 2015
Kokoomateoksen nimi: 3D, 4D and Predictive Modelling of Major Mineral Belts in Europe
Sarjan nimi: Mineral Resource Reviews
Aloitussivu: 93
Lopetussivu: 121
Sivujen määrä: 29
ISBN: 978-3-319-17428-0
ISSN: 2365-0559
DOI: https://doi.org/10.1007/978-3-319-17428-0_5
Tiivistelmä
Four-dimensional geological modelling has been conducted in the Palaeoproterozoic
Skellefte mining district. 3D-modelling of volcanic-hosted
massive sulphide deposits and associated host-rocks has been carried out in
multiple scales from deposit to regional scale and is based on a combination
of geological and geophysical investigations. A conceptual model founded
on unravelling the structural control on sedimentation, volcanism and
mineralization and the subsequent deformation patterns, acts as a base for
geological modelling. The final 3D-model provides a structural framework
in which the mineralizations can be studied by improved understanding of
the structural evolution in the mine areas, and by comparing the regional
structural patterns versus the form and attitude of ore deposits. Additionally,
uncertainty and prospectivity models were constructed showing the
distribution of data and the potential of discovering new ore deposits.
Subsequent 4D-modelling adds the time aspect to the 3D-models and aims at
visualizing and understanding the geological history in the district and as a
support for ore targeting. Moreover, adding geological time to the modelling
helps gaining confidence about both the conceptual models and the 3Dmodels.
The final 3D- and 4D-models provide a regional three-dimensional
context for both industrial and academic activities in the Skellefte district,
and aid the understanding of large-scale tectonic processes.
Four-dimensional geological modelling has been conducted in the Palaeoproterozoic
Skellefte mining district. 3D-modelling of volcanic-hosted
massive sulphide deposits and associated host-rocks has been carried out in
multiple scales from deposit to regional scale and is based on a combination
of geological and geophysical investigations. A conceptual model founded
on unravelling the structural control on sedimentation, volcanism and
mineralization and the subsequent deformation patterns, acts as a base for
geological modelling. The final 3D-model provides a structural framework
in which the mineralizations can be studied by improved understanding of
the structural evolution in the mine areas, and by comparing the regional
structural patterns versus the form and attitude of ore deposits. Additionally,
uncertainty and prospectivity models were constructed showing the
distribution of data and the potential of discovering new ore deposits.
Subsequent 4D-modelling adds the time aspect to the 3D-models and aims at
visualizing and understanding the geological history in the district and as a
support for ore targeting. Moreover, adding geological time to the modelling
helps gaining confidence about both the conceptual models and the 3Dmodels.
The final 3D- and 4D-models provide a regional three-dimensional
context for both industrial and academic activities in the Skellefte district,
and aid the understanding of large-scale tectonic processes.
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