Proposed Title 1: - Queen's University

2.5.2. Temporal relationships of fault activities and U mineralization to regional
tectonic events…………………………...…………...………..………………69
2.6. Conclusions……………………………………………………………………..…..…78
CHAPTER 3…………………………….……………………………………………..…80
GENESIS OF MULTIFARIOUS URANIUM MINERALIZATION IN THE
BEAVERLODGE AREA, NORTHERN SASKATCHEWAN, CANADA
Abstract………………………………………………………………………….……...…80
3.1. Introduction……………………………………….………………………..…..……82
3.2. Geologic Setting………………………………….………….…………..….….……83
3.2.1. General geology………………………….……………….…….……….….…83
3.2.2. Uranium mineralization………………….………………..………………..…86
3.3. Methodology………………….……………………………………………….…..…87
3.4. Results………………….……………………………………………….……….…...90
3.4.1. Paragenesis of the alteration minerals and types of U mineralization……...…90
3.4.2. Crystal Chemistry………………………….……………….……………….…96
3.4.2.1. Mineral chemistry of uraninite and brannerite…….……………...…96
3.4.2.2. Chlorite Crystal Chemistry……….……………….……………..…100
3.4.3. Isotopic compositions of minerals and fluids involved in the U
mineralization…….………..…………………………………………….…...105
3.4.3.1. Oxygen and carbon isotopes of calcite……………………….….…105
3.4.3.2. Oxygen and hydrogen isotopic compositions of chlorite….……….109
3.4.4. Rare earth elements geochemical characteristics of the U mineralization…..112
3.5. Discussion………………….……………………….……………………………....117
3.5.1. Early U mineralization…………………….……………….………...………118
3.5.2. Formation of breccia-type U deposits, the major U mineralization…………124
3.5.3. Later basin-related U mineralization…….……………….……………...…..127
3.5.4. Late alteration events…….……………….……………………………….....129
3.6. Conclusions…….……………….…………………………………………………..130
xi