本文選題：多龍礦集區(qū)　切入點(diǎn)：激電中梯　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】：多龍礦集區(qū)北部屬南羌塘-他念它翁復(fù)合地體帶西段南緣,中部屬班公湖-怒江結(jié)合帶西段,南部屬岡底斯陸塊西段北緣。地層為下侏羅統(tǒng)曲色組(J1q)、下-中侏羅統(tǒng)色哇組(J1-2s)、下白堊統(tǒng)美日切組(K1m),以及古近系漸新統(tǒng)康托組(E3k)、第四系(Q)�；郧秩霂r為輝綠巖,中酸性侵入巖以花崗閃長斑巖為主。重點(diǎn)研究礦區(qū)礦種類型均為銅金礦。對波龍、多不雜、拿若三個(gè)礦區(qū)所做的激電中梯剖面進(jìn)行整理解析,結(jié)合鉆孔編錄成果,對該方法的示礦、示巖性進(jìn)行分析研究。共解析激電中梯剖面14條:首先對三個(gè)礦區(qū)視電阻率、視極化率值的大小進(jìn)行分段統(tǒng)計(jì),將礦(巖)體部位的視電阻率、視極化率值與非礦(巖)體部位的值進(jìn)行對比,未發(fā)現(xiàn)視電阻率、視極化率值有明顯異常存在。其次,對各類型視電阻率、視極化率曲線組合進(jìn)行分析對比,包括“高視電阻率、低視極化率”,“低視電阻率、高視極化率”,“高視電阻率、高視極化率”,“低視電阻率、低視極化率”,視電阻率“兩高夾一低”和“兩低夾一高”,視極化率“兩高夾一低”和“兩低夾一高”這6大類。通過將這6類信息特征曲線與鉆探工程見礦、見巖情況的對比后發(fā)現(xiàn):①在曲線類型相同,并且ρs、ηs值相近的情況下,有存在礦(巖)體的情況,也有無礦(巖)體的情況。②在曲線類型相同,并且ρs、ηs值相差較大的情況下,有存在礦(巖)體的情況,也有無礦(巖)體的情況。③在曲線類型不同,并且ρs、ηs值相近的情況下,有存在礦(巖)體的情況,也有無礦(巖)體的情況。④在曲線類型不同,并且ρs、ηs值相差較大的情況下,有存在礦(巖)體的情況,也有無礦(巖)體的情況。⑤在少數(shù)剖面中存在一些較有規(guī)律的變化特征,但并不具備普遍性。⑥雖有一些信息標(biāo)志在見礦(巖)體部位出現(xiàn)頻率較高,但并不具有排他性。此外,針對礦體、巖體埋深問題,筆者做了初步探討,發(fā)現(xiàn)激電中梯方法在對礦體、巖體埋深情況進(jìn)行判別時(shí),無法從測量數(shù)據(jù)或數(shù)據(jù)組合規(guī)律上判定礦體、巖體的埋深深度。綜合以上研究成果,激電中梯方法對多龍礦集區(qū)Cu、Au礦床勘查無排他性標(biāo)志。
[Abstract]:The northern part of the Dulong ore concentration area is the southern margin of the western section of the southern Qiangtang-Tantaoweng complex terrane belt, and the middle subordinate is the western section of the Bangong Lake-Nujiang junction belt. The south part belongs to the northern margin of the western section of the Gangdis block. The strata are the lower Jurassic Kuchse formation, the Lower and Middle Jurassic Sewa formation, the Lower and Middle Jurassic Sewa formation, the Lower Cretaceous Meiriche formation, the Paleogene Cambrian Cambrian formation, the Paleogene Cambrian Kantuo formation, the Quaternary Quaternary QKG, and the basic intrusive rocks are diabase rocks. The intermediate-acid intrusive rocks are mainly granodiorite porphyry. The ore types in the mining area are all copper and gold deposits. In this paper, the ore indication and lithology of this method are analyzed and studied. There are 14 sections in the middle ladder section of IP: firstly, the apparent resistivity and apparent polarizability of the three mining areas are divided into sections, and the apparent resistivity of the ore (rock) body is calculated. When the apparent polarizability value is compared with the value of non-mineral (rock) body, there is no apparent resistivity and apparent polarizability is obviously abnormal. Secondly, the combination of apparent resistivity and apparent polarizability curve is analyzed and compared. Including "high apparent resistivity, low apparent polarizability", "low apparent resistivity, high apparent polarizability", "high apparent resistivity, high apparent polarizability", "low apparent resistivity", "low apparent polarizability", "two high and one low" and "two low and one high", six categories of apparent polarizability, "two high and one low" and "two low and one high". The comparison of rock and rock conditions shows that when the curve type is the same, and 蟻 s, 畏 s values are similar, there are ore (rock) bodies and ore (rock) bodies with the same curve types, and the difference of 蟻 s and 畏 s values is quite large in the case that there are ore (rock) bodies, and there is no ore (rock) bodies in the case of the same curve type, and the difference of 蟻 s and 畏 s values is large. There are ore (rock) bodies, and there are mineral (rock) bodies. .3 in the case of different curve types and similar 蟻 s, 畏 s values, there are ore (rock) bodies, and there are mineral (rock) bodies with or without ore (rock) bodies. And when 蟻 s, 畏 s values differ greatly, there are ore (rock) bodies and ore (rock) bodies. 5. There are some more regular variation characteristics in a few sections. However, although there are some information signs which appear frequently in the ore body (rock) body, they are not exclusive. In addition, the author has made a preliminary discussion on the buried depth of ore body and rock mass. It is found that the depth of ore body and rock mass can not be determined from the measurement data or the law of data combination when the method of induced electric medium ladder is used to judge the buried depth of ore body and rock mass. There is no exclusive sign for the exploration of the Cu-au au deposit in the Dulong ore concentration area by using the method of induced electric medium ladder.
【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)】：P631.324

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本文編號(hào)：1646682