本文選題：云南金平老集寨　切入點(diǎn)：鉛多金屬礦　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】：鉛是重要的有色金屬資源。云南省金平縣老集寨鉛多金屬礦區(qū)有較好的成礦背景。在地表浮土覆蓋較厚而地質(zhì)、化探、遙感資料缺乏的情況下,迫切需要快速有效的物探手段來查明隱伏的鉛礦體分布、圈定找礦靶區(qū)。國內(nèi)外眾多找礦案例證明激發(fā)極化法特別適合尋找隱伏的浸染狀礦體。因此在該區(qū)開展激發(fā)極化法中梯掃面工作。2014年3月～5月在測區(qū)完成100×20(線距/米×點(diǎn)距/米)網(wǎng)度的激電中梯掃面測線17條,采集巖礦石標(biāo)本67件并測定電參數(shù)。采集、測定的數(shù)據(jù)質(zhì)量符合規(guī)范要求。制作推斷解釋圖件10幅。為壓制干擾,突出有效信息,對數(shù)據(jù)進(jìn)行了濾波和互相關(guān)等處理。本文總結(jié)了區(qū)域地質(zhì)、測區(qū)地質(zhì)和地球物理特征,根據(jù)地質(zhì)、地球物理特征對獲得的異常進(jìn)行了定性、半定量解釋推斷。定性圈定和解釋了4個視極化率異常、7個視極化率衰減度異常和6個視電阻率異常。4個視極化率異常中,1個為已知礦異常、3個有找礦意義異常。7個視極化率衰減度異常中,1個為已知礦異常,5個為找礦有意義異常、1個為性質(zhì)不明異常；圈定的6個視電阻率異常中,1個為已知礦體異常、3個為找礦有意義異常、2個性質(zhì)不明異常。對兩條找礦有意義異常所指示的場源體走向、傾向和傾角進(jìn)行了定量、半定量推斷,推斷結(jié)果經(jīng)工程驗(yàn)證效果較好。
[Abstract]:Lead is an important nonferrous metal resource. There is a good metallogenic background in Laojizhai lead polymetallic ore area in Jiping County, Yunnan Province. There is an urgent need for rapid and effective geophysical methods to identify the distribution of hidden lead ore bodies, Many cases at home and abroad prove that the induced polarization method is especially suitable for searching for concealed disseminated orebodies. Therefore, the work of ladder sweeping in the area is carried out. From March 2014 to May, 100 脳 20 (line distance) was completed in the survey area. 17 ladder sweep lines in the IP / m 脳 dot / m) meshes, 67 samples of rock and ore were collected and electrical parameters were measured. The quality of data collected and measured met the requirements of the specification. Ten inferred and interpreted maps were made. In order to suppress interference and highlight effective information, The data are processed by filtering and cross-correlation. The geological and geophysical characteristics of regional geology, survey area and geophysics are summarized in this paper. The anomalies obtained are qualitatively analyzed according to geological and geophysical characteristics. Four apparent polarizability anomalies, seven apparent polarizability attenuation anomalies and six apparent resistivity anomalies have been qualitatively delineated and interpreted. Of the 4 apparent polarizability anomalies, 1 is known ore anomaly and 3 have prospecting significance anomaly. Of the 7 apparent polarizability attenuation anomalies, 1 is known ore anomaly, 5 are prospecting significant anomalies and 1 is unknown in nature. Of the 6 apparent resistivity anomalies delineated, 1 is known ore body anomaly, 3 are ore-prospecting significant anomalies, 2 are unknown anomalies. Quantitative and semi-quantitative extrapolation of field source strike, tendency and dip angle indicated by two ore-prospecting meaningful anomalies are carried out. The inferred results are proved to be better by engineering.
【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】：P618.2;P631.324

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