斑巖型鉬礦床是金屬鉬最重要的來源,也是中國鉬礦床的主要類型。在滇西北香格里拉地區(qū)的小中甸-麗江一帶,分布大量銅、鐵、鉛、鋅、銀等多金屬礦點和礦化點。幾十年來,這些地區(qū)的找礦潛力也一直被關(guān)注,但均未能找到規(guī)模性礦床。近幾年來,在拉吉鄉(xiāng)拉巴-銅廠溝一帶的勘查找礦中,新勘查發(fā)現(xiàn)一個大型斑巖-矽卡巖-熱液脈型鉬（銅）多金屬成礦系統(tǒng),具有巨大的找礦潛力�？辈榻Y(jié)果表明,淺表部的（網(wǎng)）脈狀鉬（銅、鉛、銀）礦化通常位于次級斷裂及不同方向斷裂交匯部位,而深部礦化產(chǎn)于侵位于中三疊統(tǒng)碳酸鹽巖中的二長花崗斑巖和閃長玢巖內(nèi),形成—套成生聯(lián)系緊密的礦床組合,即巖體內(nèi)的斑巖型礦床、內(nèi)接觸帶的矽卡巖型礦床及外接觸帶的（網(wǎng)）脈狀礦床,這也被近期開展的工作所不斷證實。拉巴鉬（銅）礦床即是其中的重要區(qū)塊,已探獲（332+333+334）類資源儲量鉬金屬量63.47萬噸,伴生銅金屬量3.37萬噸、金金屬量14.7噸,勘查找礦和相關(guān)研究工作仍在進(jìn)行中,儲量逐漸增加,預(yù)測鉬金屬遠(yuǎn)景儲量有望超過150萬噸。但區(qū)內(nèi)地表第四系覆蓋層厚度大,深部地層及構(gòu)造發(fā)育規(guī)律不明,含礦巖體的埋深和形態(tài)變化大,致使勘查工作部署的找礦有效性較差。本次在... 

【文章來源】：昆明理工大學(xué)云南省

【文章頁數(shù)】：132 頁

【學(xué)位級別】：博士

【文章目錄】：
摘要
ABSTRACT
ACKNOWLEDGEMENTS
Part of the development work in this thesis has been published paper
CHAPTER Ⅰ INTRODUCTION
    Ⅰ.1 Research justification
    Ⅰ.2 Purpose
    Ⅰ.3 Study area overview
    Ⅰ.4 Content overview
CHAPTER Ⅱ GEOLOGICAL BACKGROUND OF STUDY AREA
    Ⅱ.1 Study area
    Ⅱ.2 Regional geology
        Ⅱ.2.1 Area Geology
        Ⅱ.2.2 Stratum
        Ⅱ.2.3 Regional tectonic
        Ⅱ.2.4 Magmatic rocks
        Ⅱ.2.5 Regional Mineral Resources
    Ⅱ.3 Deposit geology
        Ⅱ.3.1 stratum
        Ⅱ.3.2 Structure
        Ⅱ.3.3 Magmatic rocks
        Ⅱ.3.4 Metamorphism and wall rock alteration
        Ⅱ.3.5 Ore body characteristics
    Ⅱ.4 Characteristic of investigated minerals at region
CHAPTER Ⅲ AN OVERVIEW OF THE ESSENTIAL METHOD
    Ⅲ.1 IP method
        Ⅲ.1.1 Introduction and historical overview
        Ⅲ.1.2 Methodology of Induce Polarization
            Ⅲ.1.2.1 Theoretical background methods of induce polarization
                Ⅲ.1.2.1.1 The phenomenon causes polarization and rock
                Ⅲ.1.2.1.2 Electrical conductivity of rocks in polarized environment
                Ⅲ.1.2.1.3 The polarization factor in the time domain, frequency domain and phasepolarity
                Ⅲ.1.2.1.4 Coefifcient of metal
                Ⅲ.1.2.1.5 Phase polairzation
            Ⅲ.1.2.2 Polarization phase characterized by a number of typical ores
            Ⅲ.1.2.3 Analysis and interpretation of induce polarization method
    Ⅲ.3 EH4 method
        Ⅲ.3.1 The definition of Tellua method
        Ⅲ.3.2 Historical method
        Ⅲ.3.3 The base theory of MT method
    Ⅲ.4 Foundation theory and methodology of magnetic
        Ⅲ.4.1 Introduction to magnetic exploration-historical overview
        Ⅲ.4.2 Earth's magnetic and anomalous magnetic
            Ⅲ.4.2.1 The Earth's Magnetic Field
            Ⅲ.4.2.2 Temporal Variations of the Earth's Magnetic Field-Overview
            Ⅲ.4.2.3 Total field measurements
            Ⅲ.4.2.4 Magnetic Anomaly
        Ⅲ.4.3 Euler 3D method and magnetic exploration
            Ⅲ.4.3.1 Euler's equation
            Ⅲ.4.3.2 Fast Fourier transform
            Ⅲ.4.3.3 Analysis signal
            Ⅲ.4.3.4 Analysis location and depth source
            Ⅲ.4.3.5 FFT filter
                Ⅲ.4.3.5.1 FFT apparent susceptibility filter
                Ⅲ.4.3.5.2 FFT Butterworth Filter
                Ⅲ.4.3.5.3 Gaussian Regional/Residual Filter
                Ⅲ.4.3.5.4 Cosine Roll-off Filter
                Ⅲ.4.3.5.5 Lowpass Filter
                Ⅲ.4.3.5.6 Highpass Filter
CHAPTER IV Analysis and Interpretation of Geophysics Data in Shangri-La LabaPorphyry Cu (-Mo) Ore Field
    Ⅳ.1 Geophysics investigation
    Ⅳ.2 Analysis and interpretation of IP method
        Ⅳ.2.1 Measuring and data survey evaluation
        Ⅳ.2.2 Interpretation
    Ⅳ.3 Analysis and interpretation of EH4 method
        Ⅳ.3.1 Magnetotelluric sounding
        Ⅳ.3.2 Magnetotelluric sounding work
        Ⅳ.3.3 Interpretation
    Ⅳ.4 Analysis and interpretation of magnetic method
        Ⅳ.4.1 Instrument
        Ⅳ.4.2 Magnetic data survey
        Ⅳ.4.3 Software and system capabilities
        Ⅳ.4.4 Analysis and interpretation
CHAPTER V DISCUSSIONS AND CONCLUSIONS
    Ⅴ.Ⅰ Discussion geophysical geology results
        Ⅴ.Ⅰ.1 IP results
        Ⅴ.Ⅰ.2 EH4 results
        Ⅴ.Ⅰ.3 Magnetic results
        Ⅴ.Ⅰ.4 Evalution of combinative method
    Ⅴ.Ⅱ Conclusions
REFERENCE


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