The Rosebel gold mining district (Trans-Amazonian belt, Suriname), a new structural framework

• Main Authors: Gapais Denis, Alimoenadi Gilian, Balraadjsing Nicole, Poupeau Benoît
• Format: Article
• Language: English
• Published: EDP Sciences 2021-01-01
• Series: BSGF - Earth Sciences Bulletin
• Subjects: paleoproterozoic tectonics; trans-amazonian belt; suriname; rosebel gold district
• Online Access: https://www.bsgf.fr/articles/bsgf/full_html/2021/01/bsgf200048/bsgf200048.html

The Rosebel gold district belongs to the Paleoproterozoic Trans-Amazonian belt associated with sub-meridian crustal shortening. Here, we present new structural observations (cleavage, stretching lineations, veins, fault slip data, aeromagnetic map). The regional cleavage is steeply dipping and bears a steeply plunging stretching lineation. Finite strains are of flattening type. Fault slip data reveal a complex deformation history. The overall strain pattern in the area reflects vertical motions, a feature consistent with pop-down tectonics involving vertical stretch and burial of supracrustal deposits during horizontal shortening of a hot and weak continental lithosphere.