發(fā)布時間：2018-02-23 23:43

  本文關(guān)鍵詞： 舞鋼鐵礦田 地球物理 CSAMT 高精度磁法 重力　出處：《中國地質(zhì)大學(xué)(北京)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：鐵礦資源是保障國民經(jīng)濟(jì)和國防建設(shè)的重要基礎(chǔ),鐵礦資源的短缺已經(jīng)嚴(yán)重制約著我國鋼鐵企業(yè)和鋼鐵工業(yè)的發(fā)展。河南省是鐵礦資源較為缺乏的省份之一,但是隨著河南省經(jīng)濟(jì)建設(shè)的日新月異,更加凸顯出鐵礦資源的匱乏。舞鋼鐵礦田是我省最重要的鐵礦資源基地,但是淺表鐵礦資源已經(jīng)開采殆盡,深部找礦將是未來的發(fā)展方向。本文立足于我省的鐵礦勘查現(xiàn)狀和舞鋼鐵礦田急需解決的問題,利用地球物理找礦方法結(jié)合地質(zhì)規(guī)律對舞鋼鐵礦田幾個最重要的礦床進(jìn)行深入研究,總結(jié)了舞鋼鐵礦田各種地球物理找礦方法的可行性,并對其有效性進(jìn)行了評價,優(yōu)選出了在舞鋼鐵礦田進(jìn)行深部找礦的地球物理找礦方法組合,為下一步整裝勘查提供了技術(shù)支持。取得的主要認(rèn)識和成果如下:1、根據(jù)以往舞鋼地區(qū)所開展的航磁和區(qū)域重力工作,總結(jié)出了舞鋼地區(qū)航磁和重力異常特征。2、對舞鋼鐵礦田幾個重要的礦床進(jìn)行了大量的物性標(biāo)本測試,總結(jié)了舞鋼鐵礦田鐵礦及圍巖的電性、磁性以及密度特征,為進(jìn)一步在該區(qū)域找礦打下了堅實的基礎(chǔ)。3、在舞鋼地區(qū)航磁異常特征和重力異常特征以及物性參數(shù)特征的共同指導(dǎo)下,利用高精度磁法、高精度重力、可控源音頻大地電磁測深以及瞬變電磁測深等方法對舞鋼鐵礦田內(nèi)幾個重要的鐵礦床進(jìn)行地球物理找礦方法綜合找礦評價,通過綜合地球物理方法組合試驗我們遴選出了舞鋼鐵礦田有效的勘探組合方法,即高精度磁測、重力勘探及可控源音頻大地電磁法。
[Abstract]:Iron ore resource is an important foundation to guarantee national economy and national defense construction. The shortage of iron ore resource has seriously restricted the development of iron and steel enterprises and iron industry in our country. Henan Province is one of the provinces lacking iron ore resources. However, with the rapid development of economic construction in Henan Province, the shortage of iron ore resources has become even more prominent. The iron ore field in Wugang is the most important iron ore resource base in our province, but the superficial iron ore resources have been exhausted. Deep prospecting will be the development direction in the future. This paper is based on the present situation of iron ore exploration in our province and the problems urgently needed to be solved in the iron ore field of Wuyang Iron and Steel Co., Ltd. Based on the geophysical prospecting method combined with geological law, this paper makes an in-depth study on some of the most important deposits in the iron ore field of Wugang Iron Mine, summarizes the feasibility of various geophysical prospecting methods in the iron ore field of Wugang Iron Mine, and evaluates its effectiveness. The combination of geophysical prospecting methods for deep prospecting in the iron ore field of Wugang is selected. It provides technical support for the next step of the complete equipment exploration. The main knowledge and results obtained are as follows: 1. According to the aeromagnetic and regional gravity work carried out in the previous Wugang area, The characteristics of aeromagnetic and gravity anomalies in Wugang area are summarized. A large number of physical properties of several important ore deposits in Wugang iron ore field are tested, and the electrical, magnetic and density characteristics of iron ore deposit and surrounding rock in Wugang iron ore field are summarized. It lays a solid foundation for further prospecting in this area. Under the guidance of aeromagnetic anomaly, gravity anomaly and physical parameters in Wugang area, the high-precision magnetic method is used for high-precision gravity. Several important iron ore deposits in Wugang iron ore field are comprehensively evaluated by means of controllable source audio magnetotelluric sounding and transient electromagnetic sounding. Through the combination test of comprehensive geophysical method, we have selected the effective exploration combination methods of Wugang iron mine field, that is, high-precision magnetic survey, gravity exploration and controllable source audio magnetotelluric method.
【學(xué)位授予單位】：中國地質(zhì)大學(xué)(北京)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P631;P618.31

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本文編號：1528069