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Modeling and Targeting of Iron Resources with ETM+Data Interpretation, Alteration Mineral Mapping and Synthetic Analysis, Tonkolili Iron Field, Northern Sierra Leone

DISCLAIMER第4-5页
ABSTRACT第5页
ACKNOWLEDGMENT第6-12页
CHAPTER ONE: INTRODUCTION第12-22页
    1.1. BACKGROUND OF THE STUDY第12-17页
    1.2. STATEMENT OF RESEARCH PROBLEM第17-18页
    1.3. RESEARCH OBJECTIVES第18-19页
    1.4. RESEARCH QUESTIONS第19页
    1.5. SIGNIFICANCE OF THE STUDY第19-20页
    1.6. LIMITATIONS OF THE STUDY第20页
    1.7. ORGANIZATION OF THE THESIS第20-22页
CHAPTER TWO: THE STUDY AREA第22-34页
    2.1. LOCATION AND SIZE第22-23页
    2.2. CLIMATE, TOPOGRAPHY AND VEGETATION第23页
    2.3. TECTONIC AND GEOLOGICAL SETTINGS第23-26页
    2.4. LITHOLOGY AND STRUCTURE第26-27页
    2.5. DEPOSIT GEOLOGY AND STRATIGRAPHY第27-28页
    2.6. MINERALIZATION AND DEPOSIT TYPES第28-30页
    2.7. EXPLORATION AND DRILLING第30-32页
    2.8. RESOURCE ESTIMATES AND CURRENT MINING第32-34页
CHAPTER THREE: REVIEW OF LITERATURE第34-48页
    3.1. OVERVIEW OF IRON RESOURCES第34-35页
    3.2. IRON FORMATIONS AND DEPOSITS第35-36页
        3.2.1. Banded Iron Formations (BIFs)第35-36页
        3.2.2. Granular Iron Formations (GIFs)第36页
        3.2.3. Channel Iron Deposits (CIDs)第36页
        3.2.4. Detrital Iron Deposits (DIDs)第36页
    3.3. MINERAL RESOURCES AND EXPLORATION第36-38页
    3.4. REMOTE SENSING AND MINERAL EXPLORATION第38-40页
    3.5. HYDROTHERMAL ALTERATION AND MINERAL MAPPING第40-42页
    3.6. LANDSAT 7 ENHANCED THEMATIC MAPPER (ETM+)第42-44页
    3.7. SATELLITE IMAGE PROCESSING METHODS第44-48页
        3.7.1. Colour Compositing第44页
        3.7.2. Band Ratioing第44-45页
        3.7.3. Principal Component Analysis (PCA)第45-46页
        3.7.4. Crosta Technique第46-48页
CHAPTER FOUR: STUDY MATERIALS, METHODS AND APPROACH第48-52页
    4.1. MATERIALS第48页
    4.2. METHODS第48-50页
        4.2.1. Image Pre-processing第48-49页
        4.2.2. Image Enhancement第49-50页
        4.2.3. Modeling and Targeting第50页
    4.3. RESEARCH APPROACH第50-52页
CHAPTER FIVE: ANALYSIS AND DISCUSSION OF FINDINGS第52-76页
    5.1. IDENTIFICATION OF BANDED IRON FORMATIONS (BIFS)第52-54页
        5.1.1. Description of Figure 5-1第53-54页
        5.1.2. Description of Figure 5-2第54页
    5.2. ALTERATION MINERAL MAPPING第54-64页
        5.2.1. Crosta Technique第54-60页
            5.2.1.1. Description of Figure 5-3第56-57页
            5.2.1.2. Description of Figure 5-4第57-58页
            5.2.1.3. Modeling of Crosta Alteration Anomalies第58-59页
            5.2.1.4. Description of Figure 5-5第59-60页
        5.2.2. Band Ratio第60-64页
            5.2.2.1. Description of Figure 5-6第60-61页
            5.2.2.2. Description of Figure 5-7第61-62页
            5.2.2.3. Description of Figure 5-8第62-63页
            5.2.2.4. Modeling of Band Ratio Alteration Anomalies第63-64页
            5.2.2.5. Description of Figure 5-9第64页
    5.3. TARGETING OF IRON RESOURCES第64-76页
        5.3.1 Targeting magnetite-BIF units第64-68页
            5.3.1.1. Description of Figure 5-10第65-66页
            5.3.1.2. Description of Figure 5-11第66-68页
        5.3.2. Targeting the oxidized haematite cap第68-73页
            5.3.2.1. Crosta and Band Ratio Methods第68-69页
            5.3.2.2. Description of Figure 5-12第69-70页
            5.3.2.3. False Colour Composite (FCC) Method第70-71页
            5.3.2.4. Description of Figure 5-13第71页
            5.3.2.5. Integrated Iron-oxide Anomaly Model第71-72页
            5.3.2.6. Description of Figure 5-14第72-73页
        5.3.3. Exploration target model第73-76页
            5.3.3.1. Description of Figure 5-15第74-76页
CHAPTER SIX: CONCLUSIONS AND RECOMMENDATIONS第76-80页
    6.1. CONCLUSIONS第76-78页
    6.2. RECOMMENDATIONS第78-80页
LIST OF REFERENCES第80-92页
Author’s List of Publications第92页

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