Remote Sensing Technology Resources Exploration In Longzi Region Of Tibet

Mineral resources, economic development has become a prominent issue, as China's economy for many years of rapid development, the demand for mineral resources on the growing demand for more and more, the growing imbalance between supply and demand, and easy to find the outcrop mines, After years of mining shallow geological survey of the decline, so how to make use of advanced technology, accurate, fast, effective Ore deposits of resources survey and research issues need to be addressed urgently. Therefore, in recent years, people continue to use the results of scientific and technological progress brought about by one of the remote sensing technology to explore new methods of prospecting, especially in the remote sensing of the theory of continuous progress in prospecting for ore prospecting make full use of remote sensing technology to provide a new way of thinking and methods . Takako Tibet due to geographical location and natural conditions are relatively poor, the current low level of resource exploration, this paper take full advantage of remote sensing technology in the sub-region of Tibet on the long line of ring structure and mineralization of the extraction and processing information, forming the basis of relevant Prediction Theory and research areas related to ore-forming geological conditions, the study area on a regional analysis of forming a favorable forecast for the future exploration of mineral resources in the region to provide new information:In this paper, the study area based on geography and geology conditions, make full use of the ETM+ remote sensing images in an important ore-controlling significance to testify against the linear structure and to interpret the circular structure, while the use of remote sensing in the alteration of the rock edge information extraction and light of the specific geological conditions, the use of geological information on mineral structure, thread ring structure, abnormal mineralization and alteration of information known to mine (of) points, such as multi-information fusion, the region forming the forecast. In this paper, the following results:1),Through remote sensing images of the best band combinations, geometric correction, image enhancement, image fusion, such as pre-processing such as principal component analysis and image processing information for the structure and mineralization and alteration made the basis of information extraction.2),This study extracted a total size of 398 linear structure, large circular structure 5 groups of the study area by the Central line to obtain an analysis of that structure: the study area show a linear structure for the overall direction of the main east-west , accompanied by the North West, nearly north-south; circular structure has mostly rings structure.3),Through the principal component analysis of the study area, respectively, iron and hydroxyl alteration anomalies were extracted and found that the study area mineralization and alteration in the distribution of basic information on the surrounding rock, and along the nearly north-west and North-South Fair to the linear structure cloth.4),Take full advantage of the spatial analysis software MapGis function, different data formats superimposed mineralization, mineralization reflects the intuitive benefit of information superimposed on the size and extent of the study area in combination with mineral geological data, the use of ore-controlling geological conditions of portfolio theory analog theory and similar study area delineated in the four favorable ore-forming region.