本文關鍵詞：新疆西準噶爾地區(qū)不同尺度地質構造的遙感標識特征及找礦意義，由筆耕文化傳播整理發(fā)布。

新疆西準噶爾地區(qū)不同尺度地質構造的遙感標識特征及找礦意義

Remote Sensing Identification of Geological Structures at Different Scales in Western Junggar, Xinjiang and its Prospecting Significance

[1] [2] [3] [4] [5] [6] [7]

WEI Yongming,LIN Qizhong,XIAO Sang,CHEN Yu,WANG Qinjun,LIU Qingjie,WEI Xianhu（1. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;

[1]中國科學院遙感與數(shù)字地球研究所,北京100101; [2]核工業(yè)二三〇研究所,湖南長沙410007

文章摘要：哈圖金礦、包古圖斑巖型銅金鉬礦、楊莊鈹鈾礦及加曼鉬鎢銅礦等大型礦床的相繼發(fā)現(xiàn)，使西準噶爾地區(qū)的地質找礦工作備受關注。作為重點研究對象，西準噶爾地區(qū)的地質構造研究已獲得大量成果。但是，該區(qū)地域遼闊且地質構造較為復雜，傳統(tǒng)的地質學研究方法不可能快速、有效和完全準確的解決地質構造的空間分布及規(guī)模等問題。利用多種分辨率的衛(wèi)星遙感數(shù)據(jù)，，通過遙感標識體系的建立能夠客觀、準確獲取不同尺度地質構造的空間位置及規(guī)模。宏觀和中等尺度的斷裂構造均以明顯的直線或弧形等形態(tài)特征、光譜特征（色調差異）及斷層谷地、斷層陡坎等地貌特征為主要標識，但側重點有所不同；微觀尺度即礦集區(qū)尺度的斷裂構造地貌上為筆直的短小溝谷，常常需用弱信息挖掘方法才能突出構造的線性信息。通過獨特的形態(tài)特征可快速識別褶皺構造。根據(jù)環(huán)形影像特征、色調差異及環(huán)形水系特征可識別不同尺度的巖體和（或）隱伏巖體。因此，地質構造的遙感識別可為地質構造演化及成礦構造背景分析提供科學依據(jù)；為西準噶爾地區(qū)成礦帶（亞帶）劃分、遙感找礦模型的建立及高效圈定靶區(qū)等提供準確的空間信息依據(jù)。

Abstr：The Hatu gold, Baogutu porphyry copper, Yangzhuang beryllium and Suyunhe-Jiaman molybdenum and tungsten copper deposits in the western Junggar area, which were discovered in the last decades, have drawn the attention of many geologists. However, even though progresses have made in the geological structure investigations （especially the fault structure）, the accurate spatial distribution and scales of the geological structures are not well documented due to the vast territory and its extreme complexity. Through establishing remote sensing marks, the geological structures could be identified rapidly, effectively and accurately. However, the identification marks vary for the geological structures at different scales. The main marks of the macro-scale fault structures have evident linear tracks （straight line or arc）, spectral characteristics and geomorphological features （broken belt, wide fault valley and fault scarp）. In addition, the macro-scale fault structures control＆nbsp;the divisions of the first-class landform unit and metallogenic belt, and the boundaries of large plutons and lakes. The middle-scale fault structures can mainly be identified through evident straight linear track, the hue difference between the two-side coverings of the fault, some landform signs （wide fault valley et al.） They control the second-class landform units and sub-metallogenic belts. The micro-scale fault structures have evident geomorphological features （including short-straight fault valley and scarp） and can be identified more easily after enhancing weak linear information. Of course, the fold structures also have clear morphological features. The remote sensing imagery characters of the plutons and concealed plutons at different scales include

文章關鍵詞：

Keyword：:the western Junggar area geological structure remote sensing identification geological prospecting

課題項目：國家科技支撐項目“中亞地區(qū)環(huán)境變化與自然資源遙感監(jiān)測技術與應用”（編號：2012BAH27805-07）資助.

作者信息：會員可見

  本文關鍵詞：新疆西準噶爾地區(qū)不同尺度地質構造的遙感標識特征及找礦意義，由筆耕文化傳播整理發(fā)布。