铀矿地质学概论 李增华 等 编 专业科技 文轩网

Chapter 1 Introduction 1
1.1 Uranium resources in the world 1
1.2 Classification of uranium deposits 1
References 2
Chapter 2
Intrusive-type uranium deposits 4
2.1 Introduction 4
2.2 Uranium deposits related to magmatic differentiation 5
2.2.1 Geological setting 5
2.2.2 The host rocks5
2.2.3 Alteration 5
2.2.4 Mineralization 5
2.3 Uranium deposits related to partial melting 6
2.3.1 Uranium geochemical behavior in germination 6
2.3.2 Geological characteristics of pegmatite-type uranium deposits 7
2.4 Example:the Rssing deposit in Namibia 8
2.4.1 Regional geology 8
2.4.2 Local geology 8
2.4.3 Metamorphism 10
2.4.4 Structure 11
2.4.5 Pegmatitic granite 11
2.4.6 Uranium Mineralization 13
2.4.7 Ore genesis 14
2.5 Example:the Hongshiquan deposit in China 14
2.5.1 (Meta)sediments 14
2.5.2 Magmatic rocks 15
2.5.3 Structures 15
2.5.4 Pegmatoidal alaskite 15
2.5.5 Mineralization.16References 16
Chapter 3 Granite-type uranium deposits 18
3.1 Introduction 18
3.2.1 Geological background 18
3.2.2 Temporal and spatial characteristics of uraniferous granites 19
3.2.3 Geochemical characteristics of uraniferous granites 20
3.2.4 Abundances in uraniferous granites 21
3.2.5 Mineralization styles of granite-type uranium deposits 21
3.2.6 Structural control over uranium mineralization 22
3.2.7 Ore compositions and ore vein evolution characteristics 22
3.2.8 Genetic model of granite-type uranium deposits 24
3.3 Example:Uranium deposits in the Guidong granite complex 25
3.3.1 Characteristics of intrusions 25
3.3.2 Structural characteristics 25
3.3.3 Mineralization 25
3.3.4 The No. 337 deposit 26
3.4 Example:Uranium deposits in mid-European Variscan U province 27
3.4.1 Characteristics of intrusions 27
3.4.2 Mineralization features 28
3.4.3 Limousin deposit 29References 30
Chapter 4 Polymetallic iron oxide breccia complex deposits 33
4.1 Introduction 33
4.2 Example:Olympic Dam deposit (Australia) 34
4.2.1 Geological setting 34
4.2.2 Local geology 34
4.2.3 Ore geology 35
4.2.4 Genetic model.35References 36
Chapter 5 Volcanic-related uranium deposit 38
5.1 Introduction 38
5.2 Geological conditions of volcanic-related uranium deposits 39
5.2.1 Lithologic and lithofacies conditions of uranium-producing volcanic rocks 39
5.2.2 Structural controls on volcanic-related uranium deposits 39
5.2.3 Types of volcanic basins related to uranium mineralization 40
5.3 Characteristics of volcanic-related uranium deposits 41
5.4 Examples:the Xiangshan volcanic-related ore field in China 41
5.4.1 Introduction 41
5.4.2 Geological setting 42
5.4.3 Mineralization 44
5.4.4 Ore genesis 45
5.5 Examples:the Strel'tsovka ore field in Russia 47
5.5.1 Introduction 47
5.5.2 Geologic setting 48
5.5.3 Mineralization 48
5.5.4 Ore genesis50References 50
Chapter 6 Metasomatite-type uranium deposits 53
6.1 Uranium deposits related to Na-metasomatism 53
6.1.1 Introduction 53
6.1.2 Na-metasomatite uranium deposits of the Kirovograd district (Ukraine) 54
6.2 Uranium deposits related to K-metasomatism 58
6.2.1 Geological setting 58
6.2.2 Local geology 59
6.2.3 Ore Geology 59
6.2.4 Genetic Model 61
6.3 Example:the Mary Kathleen U-REE skarn deposits 61
6.3.1 Geological setting 62
6.3.2 Local geology 62
6.3.3 Ore geology 63
6.3.4 Genetic model.64References 64
Chapter 7 Metamorphite-type uranium deposits 68
7.1 Overview 68
7.2 Uranium geochemistry in metamorphism 68
7.2.1 Geochemical characteristics of uranium in regional metamorphism 69
7.2.2 Geochemical factors affecting the activation and transfer of uraniumduring regional and contact metamorphism 69
7.2.3 Uranium geochemistry in ultrametamorphism 70
7.3 Geological conditions and deposit characteristics of migmatization typeuranium deposits 71
7.4 Example:the Schwartzwalder deposit 72
7.4.1 Introduction 72
7.4.2 Local geology 72
7.4.3 Structural geology 72
7.4.4 Alteration 74
7.4.5 Mineralization 74
7.4.6 Metallogenetic aspects76References 77
Chapter 8 Unconformity-related uranium deposits 78
8.1 Introduction 78
8.2 Geological conditions and mineralization characteristics of unconformityrelateduranium deposits 78
8.2.1 Geological setting 78
8.2.2 Ore-bearing layer and metallogenic age 79
8.2.3 Lithologic conditions 79
8.2.4 Structural conditions 80
8.2.5 Regional unconformity and paleoregoliths conditions 80
8.2.6 Mineralization.818.3 Example:McArthur River uranium deposit (Saskatchewan,Canada) 82
8.3.1 Introduction 82
8.3.2 Geological setting 82
8.3.3 Genesis83References 84
Chapter 9 Sandstone-type uranium deposits 85
9.1 Introduction 85
9.2 Classification of sandstone-type uranium deposits 85
9.2.1 Roll-front type uranium deposits 85
9.2.2 Basal-type uranium deposits 87
9.2.3 Tabular-type uranium deposits 87
9.3 Geological characteristics of sandstone-type uranium deposits 88
9.3.1 Tectonic settings 88
9.3.2 Hydrogeological conditions of sedimentary basins 88
9.3.3 Structural conditions 89
9.3.4 Sources of uranium 90
9.4 Mineralization characteristics 90
9.4.1 Shape,scale and occurrence of orebody 90
9.4.2 Mineral composition 90
9.4.3 The timing of mineralization 90
9.5 Genesis of the sandstone-type deposits 91
9.6 Example:Uranium deposits in the Ordos Basin,China 92
9.6.1 Introduction 92
9.6.2 Regional geology 92
9.6.3 Uranium mineralization in the Ordos Basin 93
9.6.4 Ore genesis94References 96
Chapter 10 Paleo quartz-pebble conglomerate uranium deposits 98
10.1 Overview 98
10.2 Types of quartz-pebble conglomerate uranium deposits 98
10.3 Characteristics of quartz-pebble conglomerate uranium deposits 99
10.4 Example:the Witwatersrand uranium deposit.100References 101
Chapter 11 Surfi (Calcrete) uranium deposits 103
11.1 Introduction 103
11.2 Characteristics of the calcrete-hosted uranium deposit 103
11.2.1 Climatic conditions 103
11.2.2 Host rock 104
11.2.3 The uranium source 104
11.2.4 The mineralization 105
11.3 Example:the Yeelirrie calcrete-hosted deposit in Australia 105
11.3.1 Introduction 105
11.3.2 Geology 105
11.3.3 Mineralization 106
11.3.4 Genesis 106
Chapter 12 Other types of uranium deposits 108
12.1 Introduction 108
12.2 Collapse breccia pipe uranium deposits 108
12.3 Lignite and coal uranium deposits 109
12.4 Carbonate uranium deposits 110
12.5 Phosphate uranium deposits 110
12.6 Black shale uranium deposits 110
12.7 Example:the Baimadong carbonate-hosted uranium deposit 111
12.7.1 Introduction 111
12.7.2 Local geology 111
12.7.3 The genesis of the Baimadong uranium deposit 112
References 113