新疆雅滿蘇地區(qū)高光譜遙感地質(zhì)解譯及找礦預(yù)測研究
發(fā)布時間：2019-01-28 22:01
【摘要】：新疆雅滿蘇地區(qū)位于東天山造山帶成礦帶內(nèi),區(qū)內(nèi)礦產(chǎn)資源豐富,但自然條件較差,在區(qū)內(nèi)開展找礦工作,高光譜遙感技術(shù)體現(xiàn)出了明顯的技術(shù)優(yōu)勢。本文在HyMap成像光譜數(shù)據(jù)處理與信息提取的基礎(chǔ)上,詳細闡述了HyMap高光譜數(shù)據(jù)預(yù)處理的基本流程以及高光譜遙感蝕變信息提取與識別的原理和方法。并通過高光譜蝕變信息提取技術(shù)對礦區(qū)南部地段進行了找礦預(yù)測研究。論文取得如下成果：(1)通過對HyMap高光譜數(shù)據(jù)的輻射定標、大氣校正和幾何校正等預(yù)處理以及數(shù)據(jù)質(zhì)量分析,保證了高光譜數(shù)據(jù)的質(zhì)量與精度,為蝕變礦物信息提取奠定了良好基礎(chǔ)；(2)采用MNF變換、PPI指數(shù)計算以及N維可視化分析,進行了光譜端元選取,在波譜分析的基礎(chǔ)上,利用光譜角(SAM)法對礦物進行了識別和填圖工作,并編制了蝕變礦物分布圖；(3)應(yīng)用HyMap高光譜遙感數(shù)據(jù)對研究區(qū)分布的褐鐵礦、黃鉀鐵礬；蒙脫石、白云母；綠泥石、綠簾石礦物進行了填圖,結(jié)果與相關(guān)資料吻合；(4)通過研究區(qū)巖性、斷裂、褶皺、環(huán)形構(gòu)造等遙感綜合解析,重新認識了研究區(qū)地質(zhì)特征,初步確立了區(qū)內(nèi)構(gòu)造事件的期次,依次為：①南北向擠壓導(dǎo)致早期相對寬緩褶皺被進一步壓緊,同時沿著北東向剪切面方向形成斷裂；②北西向擠壓,隨著作用力的增加北西向斷裂切割北東向斷裂；(5)結(jié)合典型礦床特征分析,在礦區(qū)南部蝕變礦物識別、遙感異常分析以及遙感地質(zhì)解譯的基礎(chǔ)上,結(jié)合野外實地驗證情況,圈定了2處有利找礦地段,為本區(qū)部署地質(zhì)礦產(chǎn)調(diào)查工作提供了依據(jù)；(6)經(jīng)過綜合資料分析及遙感解譯可知,研究區(qū)位于一復(fù)合向斜的西段。在找礦有利地段Ⅰ區(qū)主要由下石炭統(tǒng)雅滿蘇組組成,核部為雅滿蘇組第六巖性段,軸向東西,北翼依次分布雅滿蘇組第一巖性段至第五巖性段；南翼僅見雅滿蘇組第五巖性段地層及不整合其上的下二疊統(tǒng)阿其克布拉克組；向斜向西突出轉(zhuǎn)折端較狹窄。而在找礦有利地段Ⅱ區(qū)主要由不整合其上的上二疊統(tǒng)大熱泉子組組成,疊加其上的揚起端較為開闊的向斜,向斜軸稍向北移,二者褶軸不一致�？赡苁墙�(jīng)歷先后兩次褶皺作用形成的復(fù)合向斜。
[Abstract]:The Yamansu area of Xinjiang is located in the metallogenic belt of the East Tianshan orogenic belt, which is rich in mineral resources but poor in natural conditions. On the basis of processing and information extraction of HyMap imaging spectral data, the basic process of HyMap hyperspectral data preprocessing and the principle and method of extracting and recognizing alteration information from hyperspectral remote sensing are described in detail in this paper. The prediction of ore prospecting in the southern part of the mining area was studied by extracting the information of hyperspectral alteration. The main achievements are as follows: (1) the quality and accuracy of hyperspectral data are guaranteed by pre-processing, such as radiometric calibration, atmospheric correction and geometric correction of HyMap hyperspectral data, as well as the analysis of data quality. It lays a good foundation for the extraction of altered mineral information. (2) MNF transform, PPI exponent calculation and N-dimensional visualization analysis are used to select the spectral end elements. On the basis of spectrum analysis, the spectral angle (SAM) method is used to identify and map the minerals. The distribution map of altered minerals was compiled. (3) the hyperspectral remote sensing data of HyMap were used to map the distribution of limonite, jarosite, montmorillonite, Muscovite, chlorite and verdite minerals in the study area. (4) through the comprehensive analysis of lithology, fault, fold, ring structure and so on, the geological characteristics of the study area are re-recognized, and the periods of tectonic events in the study area are preliminarily established. The sequence is as follows: (1) the early relatively wide and gentle folds were further compressed and formed along the direction of the NNE shear plane during the early period due to the south-north compression; 2NW compression, with the increase of the force, the NW-trending fault cuts the NE-trending fault; (5) based on the characteristic analysis of typical ore deposits, on the basis of the identification of altered minerals, the analysis of remote sensing anomalies and the interpretation of remote sensing geology in the south of the mining area, and combined with the field verification in the field, two favorable ore-prospecting sites have been delineated. It provides the basis for the geological and mineral survey in this area. (6) through comprehensive data analysis and remote sensing interpretation, the study area is located in the western section of a composite syncline. The area I is mainly composed of the Yamansu formation of Lower Carboniferous. The core is the sixth lithologic member of Yamensu formation, axial east-west, and the first lithologic member of Yamensu formation is distributed from the first lithologic section to the fifth lithologic formation in the north wing. In the south wing, only the fifth lithologic member of Yamensu formation and the lower Permian Achikburak formation above unconformity are found, and the syncline is relatively narrow in its westward protruding turning point. In the Prospecting area II is mainly composed of the upper Permian great hot spring formation on which the uplift of the upper Permian is superimposed on the open syncline and slightly moves northward toward the inclined axis. The two fold axes are not consistent. It may be a composite syncline formed by two fold processes.
【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】：P627
本文編號：2417352
[Abstract]:The Yamansu area of Xinjiang is located in the metallogenic belt of the East Tianshan orogenic belt, which is rich in mineral resources but poor in natural conditions. On the basis of processing and information extraction of HyMap imaging spectral data, the basic process of HyMap hyperspectral data preprocessing and the principle and method of extracting and recognizing alteration information from hyperspectral remote sensing are described in detail in this paper. The prediction of ore prospecting in the southern part of the mining area was studied by extracting the information of hyperspectral alteration. The main achievements are as follows: (1) the quality and accuracy of hyperspectral data are guaranteed by pre-processing, such as radiometric calibration, atmospheric correction and geometric correction of HyMap hyperspectral data, as well as the analysis of data quality. It lays a good foundation for the extraction of altered mineral information. (2) MNF transform, PPI exponent calculation and N-dimensional visualization analysis are used to select the spectral end elements. On the basis of spectrum analysis, the spectral angle (SAM) method is used to identify and map the minerals. The distribution map of altered minerals was compiled. (3) the hyperspectral remote sensing data of HyMap were used to map the distribution of limonite, jarosite, montmorillonite, Muscovite, chlorite and verdite minerals in the study area. (4) through the comprehensive analysis of lithology, fault, fold, ring structure and so on, the geological characteristics of the study area are re-recognized, and the periods of tectonic events in the study area are preliminarily established. The sequence is as follows: (1) the early relatively wide and gentle folds were further compressed and formed along the direction of the NNE shear plane during the early period due to the south-north compression; 2NW compression, with the increase of the force, the NW-trending fault cuts the NE-trending fault; (5) based on the characteristic analysis of typical ore deposits, on the basis of the identification of altered minerals, the analysis of remote sensing anomalies and the interpretation of remote sensing geology in the south of the mining area, and combined with the field verification in the field, two favorable ore-prospecting sites have been delineated. It provides the basis for the geological and mineral survey in this area. (6) through comprehensive data analysis and remote sensing interpretation, the study area is located in the western section of a composite syncline. The area I is mainly composed of the Yamansu formation of Lower Carboniferous. The core is the sixth lithologic member of Yamensu formation, axial east-west, and the first lithologic member of Yamensu formation is distributed from the first lithologic section to the fifth lithologic formation in the north wing. In the south wing, only the fifth lithologic member of Yamensu formation and the lower Permian Achikburak formation above unconformity are found, and the syncline is relatively narrow in its westward protruding turning point. In the Prospecting area II is mainly composed of the upper Permian great hot spring formation on which the uplift of the upper Permian is superimposed on the open syncline and slightly moves northward toward the inclined axis. The two fold axes are not consistent. It may be a composite syncline formed by two fold processes.
【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】：P627
【相似文獻】
相關(guān)期刊論文 前6條
1 丁天府;;新疆雅滿蘇組層控型鐵礦的地質(zhì)特征[J];中國區(qū)域地質(zhì);1990年03期
2 羅婷;廖群安;陳繼平;張雄華;郭東寶;胡兆初;;東天山雅滿蘇組火山巖LA-ICP-MS鋯石U-Pb定年及其地質(zhì)意義[J];地球科學(xué)(中國地質(zhì)大學(xué)學(xué)報);2012年06期
3 侯廣順;唐紅峰;劉叢強;;東天山覺羅塔格構(gòu)造帶晚古生代火山巖地球化學(xué)特征及意義[J];巖石學(xué)報;2006年05期
4 司遷,李生虎,伊發(fā)源,楊青年,劉新;試論天山東部白魚山組及其時代歸屬[J];新疆地質(zhì);2003年03期
5 侯廣順;唐紅峰;劉叢強;趙志琦;;東天山覺羅塔格構(gòu)造帶火山巖的鉛同位素組成及意義[J];中國地質(zhì);2006年03期
6 ;[J];;年期
相關(guān)碩士學(xué)位論文 前2條
1 羅婷;東天山覺羅塔格帶雅滿蘇組火山巖年代學(xué)、地球化學(xué)特征及其對古天山洋閉合的啟示[D];中國地質(zhì)大學(xué);2013年
2 肖滋澤;新疆雅滿蘇地區(qū)高光譜遙感地質(zhì)解譯及找礦預(yù)測研究[D];昆明理工大學(xué);2015年
，本文編號：2417352
本文鏈接：http://sikaile.net/kejilunwen/diqiudizhi/2417352.html
最近更新
教材專著
