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

Denis Gapais | Zendy; Gilian Alimoenadi | Zendy; Nicole Balraadjsing | Zendy; Benoît Poupeau | Zendy

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

Author(s) -

Denis Gapais,

Gilian Alimoenadi,

Nicole Balraadjsing,

Benoît Poupeau

Publication year - 2021

Publication title -

bsgf – earth sciences bulletin

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.584

H-Index - 53

eISSN - 1777-5817

pISSN - 0037-9409

DOI - 10.1051/bsgf/2021021

Subject(s) - lineation , geology , amazonian , tectonics , seismology , lithosphere , flattening , cleavage (geology) , clockwise , fold (higher order function) , amazon rainforest , paleontology , mechanical engineering , ecology , biology , fracture (geology) , engineering , composite material , materials science

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.

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