Geological Background of Sandstone-Type Uranium Deposits in Ordos Basin, Northwest China

Foreword
Preface
Contents
1 Introduction
1.1 Analysis of Uranium Resources
1.2 Research on Sandstone-Type Uranium Deposits in Ordos Basin
1.3 Breakthroughs and Main Achievements Related to Sandstone-Type Uranium Resources
2 Background of the Ordos Basin
2.1 Regional Geological Background
2.1.1 Regional Stratigraphy
2.1.2 Regional Structure
2.1.3 Magmatic Activity and Metamorphism
2.1.4 Tectonic–Sedimentary Evolution of the Ordos Basin
2.1.5 Tectono–Thermal History of the Basin Since the Jurassic
2.2 Characteristics of the Regional Geophysical Field
2.2.1 Physical Properties of Rock Strata
2.2.2 Characteristics of the Regional Gravitational Field
2.2.3 Characteristics of the Regional Magnetic Field
2.2.4 Radiological Anomalies
2.2.5 Comprehensive Interpretation of Regional Geophysical Fields
2.3 Geology Inferred from Remote Sensing
2.3.1 Overall Image Characteristics of the Ordos Basin and Its Periphery
2.3.2 Main Linear Structural Features
2.3.3 Remotely Sensed Geological Characteristics of Typical Deposits
2.4 Geochemical Characteristics of the Basin Periphery
2.4.1 Regional Distribution of Elements
2.4.2 Spatial Variation Characteristics of Elements and Compounds
2.4.3 Association of Elements
2.4.4 Enrichment and Depletion Characteristics of the Basement and Caprock in the Basin
2.4.5 Elemental Distribution Characteristics of the Main Rock Masses Around the Basin
2.4.6 Geochemical Background of Uranium Mineralization Along the Periphery of the Basin
2.4.7 Delineation of Uranium Source Rocks Along the Periphery of the Basin
2.5 Hydrogeological Characteristics of the Basin
2.5.1 Hydrogeological Units
2.5.2 Types and Distribution of Groundwater
2.5.3 Groundwater Replenishment, Diameter, and Discharge Conditions
2.5.4 Hydrochemical Characteristics of Groundwater
2.5.5 Characteristics of the Fissure Pore Aquifer in Clastic Rock of the Zhiluo Formation in the Middle Jurassic
2.6 Internal Structural Units of the Basin
2.6.1 Western Margin Thrust Belt
2.6.2 Northern Uplift Zone
2.6.3 Yulin Uplift Zone
2.6.4 Central Uplift Zone
2.6.5 Southeastern Uplift Zone
2.6.6 Central Subsidence Zone
2.7 Summary
References
3 Geological Characteristics of Uranium-Bearing Rock Series in Key Metallogenic Prospects
3.1 Classification of Uranium-Bearing Rock Series
3.2 Geological Characteristics and Correlation of Uranium-Bearing Rock Series in Key Metallogenic Prospective Areas
3.2.1 Northeastern Margin of the Ordos Basin
3.2.2 Southeastern Margin of the Ordos Basin
3.2.3 Western Margin of the Ordos Basin
3.2.4 Southwestern Margin of the Ordos Basin
3.2.5 Central Part of the Ordos Basin
3.3 Comparison of Logging Parameters of Uranium-Bearing Rock Series in Key Metallogenic Prospective Areas
3.3.1 Logging Response of the Zhiluo Formation
3.3.2 Logging Identification of Different Lithologies in the Zhiluo Formation
3.4 Sedimentary Environment of Uranium-Bearing Rock Series in the Ordos Basin
3.4.1 Restriction of Color Zoning of Uranium-Bearing Rock Series on the Paleo-sedimentary Environment
3.4.2 Indicative Significance of Biological Fossils to the Paleoclimate of Uranium-Bearing Rock Series
3.4.3 Geochemical Characteristics and Provenance Indication Significance of the Zhiluo Formation of Uranium-Bearing Rock Series in the Ordos Basin
3.5 Summary
References
4 Geological Characteristics of Typical Deposits and Newly Discovered Ore-Producing Areas
4.1 Geological Characteristics of the Uranium Concentration Area Along the Northeastern Margin
4.1.1 Tarangaole Mining Area
4.1.2 Zaohuohao Uranium Deposit
4.1.3 Nalinggou Uranium Deposit
4.1.4 Daying Uranium Deposit
4.1.5 Wulanxili Mining Area
4.2 Geological Characteristics of Uranium Ore Concentration Areas Along the Western Margin
4.2.1 Yangchangwan Mining Area
4.2.2 Shicaocun Mining Area
4.2.3 Ciyaobao Uranium Deposit
4.3 Geological Features of the Uranium Concentration Area Along the Southeastern Margin
4.3.1 Huangling Uranium Deposit
4.3.2 Shuanglong Uranium Deposit
4.4 Geological Characteristics of the Uranium Ore Belt Along the Southwestern Margin
4.4.1 Huanxian Ore Spot
4.4.2 Pengyang–Jingchuan Deposit
4.5 Geological Characteristics of the Uranium Mineralization Belt in the Jinding Area
4.5.1 Metallogenic Geological Background
4.5.2 Geological Characteristics of Uranium Mineralization
4.6 Summary
References
5 Basin Uranium Mineralization Law
5.1 Overview of Uranium Minerals
5.1.1 Tarangaole–Dongsheng Uranium Belt Along the Northeastern Margin of the Ordos Basin
5.1.2 Ningdong Uranium Belt Along the Western Margin of the Ordos Basin
5.1.3 The Huating–Jingchuan Uranium Deposit Belt Along the Southwestern Margin of the Ordos Basin
5.1.4 The Huangling Uranium Deposit Belt Along the Southeastern Margin of the Ordos Basin
5.2 Ore-Controlling Elements and Prospecting Signs
5.2.1 Ore-Controlling Elements
5.2.2 Prospecting Criteria
5.3 Regularity of Metallogeny
5.3.1 Time Distribution Law
5.3.2 Laws of Spatial Distribution
5.4 Summary
References
6 Prospecting Methods, Prediction Models, and Metallogenic Prediction
6.1 Technical Prospecting Methods
6.1.1 Strategic Constituency
6.1.2 Drilling Verification and Effect
6.1.3 Determination of the Combination of Prospecting Technology and Methods
6.1.4 Demonstration of Selective Exploration
6.1.5 Secondary Development Technology System for Coal and Oilfield Data
6.2 Prospecting Forecast
6.2.1 Comprehensive Assessment of Ore-Controlling Elements
6.2.2 Prospecting Prediction Model
6.3 Mineralization Prediction and Analysis
6.3.1 Principles of Delineation of Scenic Spots
6.3.2 Features of the Scenic Spot
6.4 Summary
References
Appendix