本文關(guān)鍵詞： 高精度磁測(cè) 鉛鋅礦 θ圖 磁異常處理換算　出處：《成都理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：磁法勘探是地球物理勘探中最古老的方法之一,一直沿用至今,在尋找鐵磁性礦產(chǎn)和研究深部地質(zhì)構(gòu)造有著豐富的經(jīng)驗(yàn),但在尋找非磁性礦產(chǎn)中應(yīng)用較少,缺乏一定的實(shí)際經(jīng)驗(yàn)。本文利用高精度磁測(cè)間接地尋找鉛鋅礦,探尋磁法間接找礦的規(guī)律。天寶山鉛鋅礦處于上揚(yáng)子地臺(tái)西南緣康滇地軸以東的川滇黔鉛鋅礦成礦帶上,是我國重要的鉛鋅礦基地之一。礦區(qū)經(jīng)過了幾十年的開采,鉛鋅礦可開采的剩余儲(chǔ)量已經(jīng)不多,為此,收集前人的研究成果和資料,分析該區(qū)域的地質(zhì)構(gòu)造、礦床基本特征以及礦區(qū)構(gòu)造特征、構(gòu)造演化與成礦、構(gòu)造控礦等幾方面特征,得出天寶山鉛鋅礦床屬熱液礦床,采集礦區(qū)和測(cè)區(qū)的巖(礦)石標(biāo)本,測(cè)定其磁性參數(shù),得出了磁法間接找礦的可行性,在此基礎(chǔ)上,利用高精度磁測(cè)方法在已開采礦區(qū)外圍展開尋找新的鉛鋅礦工作。本文首先針對(duì)天寶山地區(qū)的實(shí)測(cè)磁測(cè)資料,選用位場(chǎng)的數(shù)據(jù)處理方法,對(duì)磁測(cè)數(shù)據(jù)進(jìn)行圓滑、化極、延拓、解析信號(hào)、導(dǎo)數(shù)換算等方法進(jìn)行磁異常處理換算,以便更好地突出目標(biāo)體的信息,壓制干擾信息以及圈定可能與鉛鋅礦相關(guān)的異常體。用邊界識(shí)別-?圖法來圈定磁異常的邊界。再利用統(tǒng)計(jì)假設(shè)檢驗(yàn)分區(qū)法來推斷研究區(qū)域的斷裂、蝕變帶等。最后,結(jié)合實(shí)際地質(zhì)勘察和化探異常劃分的優(yōu)選靶區(qū)對(duì)天寶山鉛鋅礦外圍地區(qū)進(jìn)行了礦產(chǎn)預(yù)測(cè),推斷出了T1、T2、T3和T4四個(gè)可能的成礦賦礦區(qū)。
[Abstract]:Magnetic exploration is one of the oldest methods in geophysical exploration, still in use, in search of ferromagnetic minerals and Research on deep geological structure has a wealth of experience, but in the search for non magnetic mineral is used less, the lack of practical experiences. This paper uses the high precision magnetic indirectly for lead-zinc mine, indirect rule to explore the magnetic prospecting method. The Tianbaoshan Pb Zn deposit in Sichuan Yunnan Guizhou on the southwestern margin of the Yangtze Platform in Kangdian area east of lead-zinc metallogenic belt, is one of the important bases of the lead-zinc mine in China. Mine after decades of mining, the remaining recoverable reserves of the lead-zinc mine has not, therefore, from the former the research results and data analysis, the geological structure of the region, the basic characteristics of the deposit and tectonic characteristics, tectonic evolution and mineralization, ore controlling structure and other aspects of characteristics, the Tianbaoshan Pb Zn deposit belongs to hydrothermal deposit mining In the mining area and test area of rock (ore) stone specimens to determine the magnetic parameters, the feasibility of indirect prospecting magnetic method, on the basis of this, using the method of high precision magnetic survey in mining area periphery search new lead-zinc mine. This paper aimed at the Tianbaoshan area measured by magnetic data. A data processing method, is smooth, on the magnetic data of the pole, continuation, analytic signal, derivative conversion methods such as magnetic anomaly processing and conversion, in order to better highlight the target information, jamming and delineation of information may be associated with lead-zinc anomaly. With the boundary recognition method to delineate the map? The magnetic anomaly boundary. Then to infer the fracture study area by using statistical hypothesis test partition method, alteration zone and so on. Finally, target selection and combined with the actual geological survey and geochemical anomaly classification of the mineral of the Tianbaoshan Pb Zn mine periphery It is predicted that four possible ore-forming areas of T1, T2, T3 and T4 have been deduced.

【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P631.2;P618.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 李才明，萬新南，，陳利群;物探異常的間接模式識(shí)別[J];成都理工學(xué)院學(xué)報(bào);1996年01期

2 王慧琳;陳超;張昌達(dá);;最新的巖石圈磁場(chǎng)模型及中國磁異常特征的幾點(diǎn)認(rèn)識(shí)[J];地學(xué)前緣;2008年03期

3 李才明,李軍,周拓宇;用質(zhì)子磁力儀測(cè)定巖(礦)石標(biāo)本磁參數(shù)時(shí)應(yīng)注意的問題[J];礦物巖石;2004年01期

4 謝一鋒;陳輝;李龍;;地面磁測(cè)統(tǒng)計(jì)分區(qū)及應(yīng)用效果[J];價(jià)值工程;2014年28期

本文編號(hào)：1545932