Maamba盆地位于贊比亞南部，臨近與津巴布韋的邊界。此盆地與NNE-SSW向Karoo斷裂帶縫合線走向一致，形成受中生代岡瓦納造山帶分解形成的泛非洲移動(dòng)帶（Pan African mobile belts）控制。盆地的形成與沿MSZ左旋運(yùn)動(dòng)引起的WNW-ESE向張應(yīng)力的活化相關(guān)，后期被晚石炭世-二疊紀(jì)陸相沉積地層充填。這項(xiàng)研究計(jì)劃旨在豐富Maamba盆地以及其它類似的陸相Karoo裂谷盆地的地質(zhì)和油氣系統(tǒng)下Karoo群數(shù)據(jù)庫。6個(gè)主要的巖相（混雜巖，礫巖，砂巖/粉砂巖，煤和泥巖）代表了下Karoo群向上變細(xì)的沉積序列。4個(gè)泥巖巖芯樣品被制作成薄片用于巖相分析。6個(gè)砂巖樣品被制作成鑄體薄片以識(shí)別孔隙。另外利用掃描電子顯微鏡（SEM）進(jìn)行了巖石成分和孔隙類型的識(shí)別。此外共有35個(gè)泥巖和煤的巖心樣品用于巖石熱解/總有機(jī)碳（TOC）分析。根據(jù)分析結(jié)果，共發(fā)現(xiàn)3個(gè)沉積環(huán)境，其中包括沖積平原相，河漫灘/河湖相以及湖泊相。漫灘/河湖沉積以泥巖、煤源巖和河道砂巖儲(chǔ)層為主。泥巖和煤源巖的總有機(jī)碳（TOC）含量普遍高于0.5%的下限值。然而，氫指數(shù)（HI）卻低于200mgCH/g，表明均為III型有機(jī)質(zhì)... 

【文章來源】：吉林大學(xué)吉林省 211工程院校 985工程院校 教育部直屬院校

【文章頁數(shù)】：83 頁

【學(xué)位級(jí)別】：碩士

【文章目錄】：
摘要
Abstract
CHAPTER 1 Introduction
    1.1 Location of the study area
    1.2 Geology and petroleum systems background
    1.3 Purpose and significance of the study
CHAPTER 2 Tectonic, structural and stratigraphic framework
    2.1 Tectonic framework
    2.2 Structural framework
    2.3 Stratigraphic framework
CHAPTER 3 Material and methods
    3.1 Geological reconnaisance
    3.2 Petrography of mudstones and sandstone
    3.3 Scan Electron microscopy (SEM)
    3.4 Total Organic Carbon (TOC wt %)
    3.5 Rock-Eval pyrolysis
CHAPTER 4 Results
    4.1 Lithofacies
    4.2 Alluvial floodplain deposits
    4.3 Floodplain/fluvial-lacustrine deposits
        4.3.1 Lower Gwembe
        4.3.2 UpperGwembe
    4.4 Lacustrine deposits
    4.5 Basin structure and geometry
CHAPTER 5 Laboratory analyses of lithofacies
    5.1 Conglomerate petrography
    5.2 Sandstone petrography
        5.2.1 Quartz
        5.2.2 Feldspar
        5.2.3 Lithic fragments
        5.2.4 Micas
        5.2.5 Matrix
    5.3 Sandstone classification
    5.4 Sandstone provenance
    5.5 Mudstone petrography
        5.5.1 Carbonaceous mudstones
        5.5.2 Silty mudstone
    5.6 Coal maceral analyses
        5.6.1 Liptinite Group
        5.6.2 Vitrinite Group
        5.6.3 Inertinite Group
    5.7 Diagenetic and reservoir characteristics
        5.7.1 Compaction
        5.7.2 Dissolution
        5.7.3 Kaolinite precipitation
        5.7.4 Cementation
        5.7.5 Fracturing
    5.8 Porosity characteristics
CHAPTER 6 Petroleum systems
    6.1 Source rock parameters
        6.1.1 Quantity
        6.1.2 Quality
        6.1.3 Maturity
    6.2 Reservoir Quality
    6.3 Seals
    6.4 Traps
CHAPTER 7 Discussion
    7.1 Deposition sediment source
    7.2 Basin evolution
    7.3 Diagenesis and paragenetic sequence in channel sandstone
    7.4 Effects of Rock-Eval pyrolysis
    7.5 Basin uplift and exhumations
    7.6 Effects of reservoir quality
    7.7 Petroleum potential
    7.8 Hydrocarbon play concept model
Conclusion
References
Papers published during the master’s degree
Acknowledgements



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