Volcanism and sedimentation: new insight into arc-related volcanism and sediment deposition in a synkinematic Paleoproterozoic basin, Rosebel Gold Mine, northeastern Suriname

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  • March 22, 2019
Creator
  • Watson, Thomas
    • Affiliation: College of Arts and Sciences, Department of Geological Sciences
Abstract
  • The recognition of a Paleoproterozoic island arc system, and associated depositional environments, preserved in the rocks of northeastern Suriname, relies on field, geochemical, and petrographic evidence obtained during this study, through the Rosebel Gold Mine (RGM). Geochemical and petrographic analyses of igneous rocks from RGM indicate that they are island arc related. Analyses of sedimentary rocks reveal the presence of four depositional environments, and different sediment provenances, reflecting different styles of deposition, and erosion of different source rocks. Structural analyses of the rocks at RGM have lead to the recognition of three phases of deformation: (D1-D3), resulting in thrusting and nappe style folding, steepening of these folds and development of pervasive axial planar foliation, and later, sinistral strike-slip faulting. These studies combined are used to generate a model of the evolution of the rocks at RGM during the Transamazonian orogeny.
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  • In Copyright
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  • "... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Geological Sciences."
Advisor
  • LaPoint, Dennis John
Degree
  • Master of Science
Graduation year
  • 2008
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