Articles | Volume 11, issue 2
Solid Earth, 11, 547–578, 2020
https://doi.org/10.5194/se-11-547-2020
Solid Earth, 11, 547–578, 2020
https://doi.org/10.5194/se-11-547-2020
Research article
17 Apr 2020
Research article | 17 Apr 2020

Evolution of structures and hydrothermal alteration in a Palaeoproterozoic supracrustal belt: Constraining paired deformation–fluid flow events in an Fe and Cu–Au prospective terrain in northern Sweden

Joel B. H. Andersson et al.

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Short summary
In this field-based study, geological structures and hydrothermal alterations in one of the least known geological terrains in Sweden are investigated. The area is located above the polar circle in northwestern Sweden that produces a significant portion of the iron and copper in the EU. A new tectonic model based on field evidence and microstructures is presented and it is shown that minerals typical for iron and copper–gold deposits can be linked to different phases of the structural evolution.