本文選題：多源數(shù)據(jù)　切入點(diǎn)：巖漿巖　出處：《杭州師范大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：在巖漿巖地區(qū)進(jìn)行遙感地質(zhì)找礦涉及區(qū)域地質(zhì)構(gòu)造分析、巖性識別等多方面的研究。巖性信息增強(qiáng)提取的研究是遙感地質(zhì)找礦的重要研究方向,本文以康古爾地區(qū)為例利用多源遙感數(shù)據(jù)進(jìn)行巖漿巖巖性信息增強(qiáng)提取方法的研究。康古爾地區(qū)位于新疆哈密西南方向,位于與成礦密切相關(guān)的康古爾塔格斷裂帶與秋格明塔什—黃山韌性剪切帶附近,是新疆較為重要的成礦區(qū)。區(qū)內(nèi)有眾多的侵入巖漿巖巖體,這些侵入巖體與附近的銅鎳礦及金礦較為相關(guān)。本文利用遙感技術(shù)對于該地區(qū)部分中酸性侵入巖體的巖性信息進(jìn)行了增強(qiáng)與提取研究,該研究與多種金屬礦床的成因研究較為相關(guān),可以為礦產(chǎn)資源調(diào)查提供有力的支撐和依據(jù)。本文通過分析實(shí)測典型巖石的光譜信息,利用多源遙感影像及巖性增強(qiáng)和識別技術(shù)對康古爾地區(qū)巖性信息進(jìn)行增強(qiáng)與提取,取得了一定的成果。研究中,通過對野外采集的典型巖石樣品進(jìn)行光譜測試,獲得不同侵入期次侵入巖的典型光譜曲線。結(jié)合前人經(jīng)驗(yàn)并與USGS波譜庫的礦物波譜特征進(jìn)行對比,總結(jié)分析不同巖性光譜特征,研究巖性特征光譜對應(yīng)產(chǎn)生原因及遙感數(shù)據(jù)能體現(xiàn)巖性特征光譜的波段。由于單一的遙感數(shù)據(jù)對巖性的探測能力有限,而多源遙感數(shù)據(jù)能較為有效獲取與地面光譜特征相近的特征波段,因此研究中基于光譜特征,利用多源遙感數(shù)據(jù)對康古爾研究區(qū)的巖性進(jìn)行信息增強(qiáng)與提取,總結(jié)了一套較為有效的技術(shù)方法,并為區(qū)域找礦提供了一定的方法基礎(chǔ)和理論依據(jù)。本文創(chuàng)新之處與認(rèn)識如下:(1)基于巖石樣品測試光譜,總結(jié)了康古爾地區(qū)主要巖性的光譜特征規(guī)律,并評估了ASTER、Landsat8 OLI等遙感數(shù)據(jù)對特征波段的敏感性,以及利用這些遙感數(shù)據(jù)進(jìn)行巖性信息增強(qiáng)的技術(shù)方法。(2)從巖性光譜特征及單種遙感影像的不足出發(fā),探討了ASTER多光譜遙感數(shù)據(jù)與Landsat8 OLI、SPOT5、WorldView-2數(shù)據(jù)波段協(xié)同增強(qiáng)巖性信息的方法。工作中探討了多源遙感數(shù)據(jù)的融合及協(xié)同等處理過程,利用協(xié)同多源遙感影像初步探討了用單種影像空間分辨率不足、光譜分辨率不足等問題的解決方案。(3)基于數(shù)學(xué)統(tǒng)計(jì)思想對多源遙感影像進(jìn)行面向巖性信息增強(qiáng)提取應(yīng)用的最佳波段組合選擇。用獲得的最佳波段組合進(jìn)行假彩色合成方式增強(qiáng)了區(qū)域巖性特征,并通過解譯分析,對比了不同源遙感數(shù)據(jù)對巖性解譯分類的效果,最終提取了較為準(zhǔn)確的區(qū)域巖性信息。
[Abstract]:Remote sensing geological prospecting in magmatic rock area involves regional geological structure analysis, lithologic identification, etc. The enhancement of lithologic information extraction is an important research direction of remote sensing geological prospecting. In this paper, we take Kanggur area as an example to study the enhancement and extraction method of magmatic lithology information using multi-source remote sensing data. Kanggur area is located in the southwest of Hami, Xinjiang. Located near the Kangguertag fault zone and the Qiugemingtash-Huangshan ductile shear zone, which is closely related to mineralization, it is a relatively important metallogenic area in Xinjiang. There are many intrusive magmatic rocks in this area. These intrusive rocks are related to the nearby copper-nickel deposits and gold deposits. In this paper, the lithologic information of some intermediate-acid intrusive rocks in this area has been enhanced and extracted by remote sensing. This study is related to the genetic study of many kinds of metal deposits and can provide strong support and basis for mineral resources investigation. This paper analyzes the spectral information of typical rocks measured in this paper. Using multi-source remote sensing image and lithology enhancement and recognition technology to enhance and extract lithologic information in Kanggur area, some achievements have been obtained. In the study, the typical rock samples collected in the field are tested by spectrum. The typical spectral curves of the intrusive rocks in different intrusive periods were obtained. The spectral characteristics of different lithology were summarized and analyzed by comparing the spectral characteristics of minerals with the USGS spectrum library. To study the cause of lithologic characteristic spectrum and the band where remote sensing data can reflect lithologic characteristic spectrum. Because of the limited ability of single remote sensing data to detect lithology, The multi-source remote sensing data can obtain the characteristic bands close to the ground spectral characteristics effectively. Therefore, based on the spectral characteristics, the multi-source remote sensing data are used to enhance and extract the lithology of Kanggul study area. This paper summarizes a set of effective technical methods, and provides a certain method basis and theoretical basis for regional prospecting. The innovations and understanding of this paper are as follows: 1) based on the rock sample test spectrum, The spectral characteristics of the main lithology in Kanggur area are summarized, and the sensitivity of remote sensing data such as ASTERGU Landsat 8 OLI to the characteristic band is evaluated. And the technical method of using these remote sensing data to enhance lithology information. 2) starting from the characteristics of lithology spectrum and the deficiency of single remote sensing image, The method of synergistic enhancement of lithologic information between ASTER multispectral remote sensing data and Landsat8 OLI SPOT5 / WorldView-2 data band is discussed. The process of fusion and collaborative processing of multi-source remote sensing data is discussed. In this paper, the lack of spatial resolution of single image is preliminarily discussed by using cooperative multi-source remote sensing images. The solution to the problem of insufficient spectral resolution. (3) based on mathematical statistics, the best band combination selection for lithologic information enhancement and extraction of multi-source remote sensing image is carried out. Using the obtained best band combination to carry out pseudocolor. The combination method enhances the regional lithologic characteristics, Through interpretation and analysis, the effects of different remote sensing data on lithology interpretation and classification are compared, and more accurate regional lithologic information is extracted.
【學(xué)位授予單位】：杭州師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P627

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 肖玉環(huán);黃倫春;劉曉燕;王媛媛;張紅英;;基于HIS變換的多源遙感影像融合方法研究[J];工程地球物理學(xué)報(bào);2010年02期

2 劉超群;馬祖陸;莫源富;;遙感巖性識別研究進(jìn)展與展望[J];廣西科學(xué)院學(xué)報(bào);2007年02期

相關(guān)碩士學(xué)位論文 前1條

1 高萬里;基于ASTER遙感影像的東昆侖造山帶巖性信息提取研究[D];中國地質(zhì)大學(xué)（北京）;2011年

，

本文編號：1618963