本文選題：地質(zhì)解譯 + 遙感異常　； 參考：《成都理工大學(xué)》2015年碩士論文

【摘要】：云南鳳慶地區(qū)礦產(chǎn)資源較為豐富,成礦的地層及構(gòu)造—巖漿條件良好,在常規(guī)的找礦工作難度不斷加大的前提下,應(yīng)用遙感技術(shù)尋找新的礦床具有重要作用,可以迅速識(shí)別出圍巖蝕變異常,通過(guò)提取蝕變信息圈出成礦區(qū)域,為常規(guī)找礦方法提供可靠參考依據(jù)。本文將遙感和數(shù)學(xué)地質(zhì)相結(jié)合,運(yùn)用SPOT 6、ASTER、Landsat 8衛(wèi)星影像為基礎(chǔ)數(shù)據(jù),結(jié)合地質(zhì)調(diào)查數(shù)據(jù),對(duì)該地區(qū)進(jìn)行遙感地質(zhì)解譯和礦化蝕變信息進(jìn)行提取研究。本文取得了以下成果:(1)分析研究?jī)?nèi)容及遙感數(shù)據(jù)特征,對(duì)各遙感數(shù)據(jù)進(jìn)行預(yù)處理,制作遙感解譯底圖和蝕變信息提取底圖,為進(jìn)一步研究做準(zhǔn)備。(2)利用云南省鳳慶地區(qū)SPOT 6影像為基礎(chǔ),結(jié)合以往的地質(zhì)資料通過(guò)影像解譯建立了研究區(qū)巖性、地層與構(gòu)造的解譯標(biāo)志,做出了研究區(qū)地質(zhì)解譯圖。(3)結(jié)合已有勘察資料,從遙感蝕變信息提取的地質(zhì)依據(jù)和波譜依據(jù)為前提,總結(jié)提取礦物蝕變異常的方法。去除蝕變提取中干擾信息的基礎(chǔ)上,根據(jù)蝕變礦物的波譜特征,利用主成分分析法對(duì)研究區(qū)的ASTER和Landsat 8影像數(shù)據(jù)進(jìn)行鐵染蝕變和羥基蝕變信息提取,并對(duì)蝕變信息進(jìn)行濾波和分級(jí)處理。(4)對(duì)所提取的巖性、構(gòu)造、蝕變信息進(jìn)行野外驗(yàn)證,結(jié)合該地區(qū)的物探、化探數(shù)據(jù)進(jìn)行遙感找礦信息的綜合分析和進(jìn)一步驗(yàn)證。證明了在該區(qū)域利用遙感技術(shù)進(jìn)行礦物蝕變信息提取是可行有效的。本次研究成果為云南鳳慶地區(qū)的礦產(chǎn)資源勘查工作提供了重要的找礦依據(jù),對(duì)該地區(qū)成礦預(yù)測(cè),以及國(guó)民經(jīng)濟(jì)的發(fā)展,有著十分重要的意義。
[Abstract]:The Fengqing area of Yunnan Province is rich in mineral resources, and the ore-forming strata and tectonic-magma conditions are good. Under the premise of the increasing difficulty of conventional prospecting work, it is important to use remote sensing technology to find new deposits. The alteration anomaly of surrounding rock can be quickly identified, and the metallogenic area can be obtained by extracting alteration information, which provides a reliable reference for conventional prospecting methods. In this paper, the remote sensing and mathematical geology are combined, and the remote sensing geological interpretation and mineralized alteration information in this area are extracted and studied by using the satellite image of SPOT 6 and ASTER-Landsat 8 as the basic data and the geological survey data. This paper has obtained the following achievements: 1) analyzing the contents and characteristics of remote sensing data, preprocessing each remote sensing data, making remote-sensing interpretation background map and alteration information extracting base map, In preparation for further study, based on SPOT 6 image in Fengqing area, Yunnan Province, the lithologic, stratigraphic and structural interpretation marks of the study area are established by image interpretation combined with previous geological data. The geological interpretation map of the study area. 3) based on the existing survey data and the geological basis and spectral basis of remote sensing alteration information extraction, the methods of extracting mineral alteration anomalies are summarized. On the basis of removing the interference information in alteration extraction and according to the spectral characteristics of altered minerals, the iron-stained alteration and hydroxyl alteration information were extracted from ASTER and Landsat 8 image data of the study area by principal component analysis (PCA). And the altered information is filtered and classified. 4) the extracted lithology, structure and alteration information are verified in the field. Combined with the geophysical and geochemical exploration data in this area, the remote sensing prospecting information is comprehensively analyzed and further verified. It is proved that the extraction of mineral alteration information by remote sensing is feasible and effective. The results of this study provide an important basis for the exploration of mineral resources in Fengqing area of Yunnan Province and are of great significance to the metallogenic prediction and the development of the national economy in this area.
【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(lèi)號(hào)】：P627

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