本文關(guān)鍵詞： 山西省繁峙縣 山辛莊礦區(qū) 高精度磁測 尋找磁鐵礦 磁異常解釋　出處：《昆明理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：鐵是我國國民經(jīng)濟(jì)發(fā)展中需求量最多的一種金屬。五臺山地區(qū)是我國主要鐵礦產(chǎn)地和鐵礦重點(diǎn)遠(yuǎn)景區(qū)之一,山西省繁峙縣山辛莊鐵礦區(qū)位于五臺山地區(qū)內(nèi),且區(qū)內(nèi)存在航磁異常及磁鐵礦礦化,具有較好的磁鐵礦找礦前景,因此,在山辛莊礦區(qū)開展高精度磁測勘查工作,尋找磁鐵礦。在礦區(qū)內(nèi)開展了1：5000高精度磁法測量,完成50×10(線距／米×點(diǎn)距／米)網(wǎng)度高精度磁測面積21.23平方千米,測線151條,磁測點(diǎn)42619個(gè),異常及礦化地段加密至5m,每條勘探剖面上布設(shè)1：2000高精度磁測剖面,異常及含礦層地段加密至5m,總工作量40km。通過對實(shí)測磁力△T資料進(jìn)行位場轉(zhuǎn)換、化極、向上延拓、插值切割、小波變換、趨勢分析等處理,最終提取了相應(yīng)的磁力垂直分量化極局部Za⊥J異常,共63個(gè),并提出了推斷解釋意見,經(jīng)綜合分析認(rèn)為M26、M27、M31、M32、M34和M47等6個(gè)異常是由礦體引起的；M21、M22、M23等21個(gè)異常具有找礦意義；其余36個(gè)異常無找礦意義。根據(jù)磁異常平面特征選擇6條典型剖面進(jìn)行人機(jī)二度半正反演,推斷了場源體的傾向、傾角、頂端埋深、厚度和下延深度等,為下一步找礦工作提供磁測信息。
[Abstract]:Iron is one of the most needed metals in the development of our national economy. The Wutai Mountain area is one of the main iron ore producing areas and one of the key iron ore scenic spots in China, and the Shanxinzhuang Iron Mine area in Fanshi County of Shanxi Province is located in the Wutai Mountain area. There are aeromagnetic anomalies and magnetite mineralization in the area, which has a good prospect of magnetite prospecting. Therefore, high-precision magnetic prospecting work is carried out in Shanxinzhuang mining area. To find magnetite ore. 1: 5000 high precision magnetic survey was carried out in the mining area, and the area of high precision magnetic measurement of 50 脳 10 (line distance / meter 脳 point distance / meter) mesh was 21.23 square kilometers. There are 151 lines, 42619 magnetic measuring points, and the abnormal and mineralized areas are infilled to 5 m. Each exploration section is equipped with 1: 2000 high precision magnetic section, and the abnormal and ore-bearing strata are infilled to 5m. The total amount of work is 40km. through the transformation of potential field, polarity, upward continuation, interpolation cutting, wavelet transform, trend analysis and so on, the measured magnetic T data are processed. Finally, a total of 63 local Za Karabakh J anomalies of the magnetic vertical quantization pole are extracted, and the inferential interpretation is put forward. It is concluded that M26M27M31 and M32 are considered by comprehensive analysis. Six anomalies such as M34 and M47 are caused by ore bodies. 21 anomalies such as M21M22M23 have prospecting significance. The other 36 anomalies have no prospecting significance. According to the plane characteristics of magnetic anomalies, 6 typical sections are selected for two-degree semi-forward and inverse modeling, and the inclination, dip angle, top buried depth, thickness and downward extension depth of the field source body are inferred. To provide the magnetic survey information for the next prospecting work.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.31;P631.2

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