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A Study of Typomorphism of Placer Gold in North Pakistan:Implication for Gold Provenance,ore Genesis and Exploration

Acknowledgements第7-8页
Abstract第8-11页
摘要第12-19页
Chapter 1 Introduction第19-27页
    1.1 Project preface and rationality第19-21页
    1.2 Previous research第21-22页
    1.3 Objectives第22-23页
    1.4 Selection of Study area第23-25页
        1.4.1 Location selected第23-24页
        1.4.2 Accessibility第24页
        1.4.3 Climate and Topography第24-25页
    1.5 Summary of the work fulfilled第25-27页
Chapter 2 Geological setting and metallogeny of North Pakistan第27-41页
    2.1. Tectonic evolution第27-29页
    2.2 Geological setting第29-41页
        2.2.1 Karakorum terrain (Asia)第29-32页
            2.2.1.1 The Northern Karakoram terrane第29-30页
            2.2.1.2 Karakoram Batholith第30-31页
            2.2.1.3 The Southern Metamorphic Complex (KMC)第31-32页
        2.2.2 Karakoram-Kohistan Suture Zone (KKSZ/MKT)第32页
        2.2.3 Kohistan Paleo Island Arc第32-38页
            2.2.3.1 Yasin Group (Volcanics and sediments)第33-34页
            2.2.3.2 Chalt Volcanics第34-35页
            2.2.3.3 Drosh sediments and Volcanics第35页
            2.2.3.4 The Shamran/Teru volcanics第35-36页
            2.2.3.5 Dir Group第36页
            2.2.3.6 The Jaglot Group第36页
            2.2.3.7 Kohistan batholith第36-37页
            2.2.3.8 The Chilas Complex第37页
            2.2.3.9 Kamila amphibolites第37-38页
            2.2.3.10 Jijal, Sapat and Tora-Tiga complexes第38页
        2.2.4 Indus Suture Zone第38-39页
        2.2.5 Indian Terrain Rocks第39页
        2.2.6 Metallogeny of North Pakistan第39页
        2.2.7 Glacial system第39-41页
Chapter 3 Morphology and geochemistry of placer gold: implication forprovenance and exploration第41-73页
    3.1 Introduction第41-43页
    3.2 Sampling and Analytical methods第43页
    3.3 Results第43-61页
        3.3.1 Gold grain morphology第43-54页
            3.3.1.1 Shapes and size of gold grains第43-49页
            3.3.1.2 Microtexture of gold grains第49-54页
        3.3.2 Gold grain chemistry第54-61页
            3.3.2.1 EDS results第55-56页
            3.3.2.2 EMPA Data第56-61页
            3.3.2.3 Mineral Inclusions第61页
    3.4 Discussion第61-72页
        3.4.1 Morphology as indicator of proximity to gold source第61-67页
        3.4.2 Microchemistry and gold source type第67-71页
        3.4.3 Authigenic gold第71-72页
    3.5 Summary第72-73页
Chapter 4 Morphological, thermoelectrical, geochemical and isotopicanatomy of auriferous pyrite第73-111页
    4.1 Introduction第73-74页
    4.2 Sampling and analytical techniques第74-76页
        4.2.1 Powder XRD analysis第75页
        4.2.2 Thermoelectricity analysis第75页
        4.2.3 EPMA Analysis and EPMA X-Ray elemental maps第75-76页
        4.2.4 Sulfur and lead Isotope analysis第76页
    4.3 Results第76-98页
        4.3.1 Morphology of pyrite第76-82页
            4.3.1.1 Crystal habit第79-82页
        4.3.2 Thermoelectricity第82-88页
            4.3.2.1 Thermoelectric theory第82-83页
            4.3.2.2 Thermoelectric analysis of pyrite第83页
            4.3.2.3 Temperature calculation using thermoelectric coefficient第83-85页
            4.3.2.4Thermoelectric parameter of pyrite第85-88页
        4.3.3 Pyrite Chemistry第88-94页
            4.3.3.1 Major and trace elements of pyrite第88-91页
            4.3.3.2 Element distribution in pyrite第91-94页
        4.3.4 Isotopic composition of pyrite第94-98页
            4.3.4.1 Sulfur isotopic composition of pyrite第94-96页
            4.3.4.2 Lead isotopic characteristics of pyrite第96-98页
    4.4 Discussion第98-109页
        4.4.1 Deposit types inferred in the hinterlands第98-104页
        4.4.2 Mineralisation and source lithology第104-106页
        4.4.3 Au incorporation in Pyrite第106-107页
        4.4.4 Ore forming fluids and source of metals and sulfur第107-109页
    4.5 Summary第109-111页
Chapter 5 U-Pb geochronology, texture and composition of detrital zirconfrom placer deposits as a Pathfinder for source deposits第111-139页
    5.1 Introduction第111-112页
    5.2 Sampling and Analytical techniques第112-114页
        5.2.1 Zircon cathodoluminescencent (CL) images第112页
        5.2.2 LA-ICPMS zircon U-Pb geochronology and trace element analysis第112-114页
    5.3 Results第114-117页
    5.4 Discussion第117-137页
        5.4.1 Zircon fertility indicators第117-129页
        5.4.2 Zircon trace element proxy for magmatic water content第129-130页
        5.4.3 REE patterns of detrital zircon as fertility indicators第130-132页
        5.4.4 Detrital Zircon Textures as fertility indicator第132-135页
        5.4.5 Comparison of the fertile age suits with local geology第135-137页
    5.5 Summary第137-139页
Chapter 6 Conclusions and recommendations第139-141页
    6.1 Conclusions第139-140页
    6.2 Recommendations for future work第140-141页
References第141-156页
Appendix第156-233页
Resume第233-234页

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