Proposed Title 1: - Queen's University

In particular, the key issues to be addressed include:
(1) The geological and structural settings of these deposits. The goals are to define the
deformation history and to analyze the geometry and kinematics of uranium-bearing
structures that are necessary to understand key structural features that are favorable for
fluid mobility and uranium mineralization (Fig. 1.5).
(2) The paragenesis and crystal chemistry of the alteration assemblages and uranium
mineralization in successor basins (Fig. 1.5), including ore and alteration mineral
assemblages and their relative timing.
(3) Determination of the age, origin, composition and timing of the fluids that produced
the uranium mineralization in successor basins (Fig. 1.5). Results are compared with
fluids that formed the younger unconformity-type U deposits.
(4) Establish a conceptual genetic model for uranium mineralization in successor basins by
integrating results from structural, geochronological, petrographic and geochemical
data (Fig. 1.5) and predict sites of mineral deposition in analogous successor basins by
identifying key fluid and deformation events in their evolutions that are linked to
economic uranium mineralization.
This study focuses on uranium deposits in the Beaverlodge (Fig.1.1) and South
Alligator River areas (Fig. 1.2). These two areas share similar geological and structural
setting. They host older U deposits in Paleoproterozoic successor basins that are spatially
associated with unconformity-type U deposits in younger late Paleoproterozoic basins. In
the Beaverlodge area (Fig. 1.1), the Gunnar, Ace-Fay, and Cinch Lake deposits are studied.
These deposits represent the spectrum of deposit types and are the largest in the area (Table
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