Information Extraction And Fusion Of Remote Sensing Image In Gully Area Of ​​Qinghai Province

Paper combines " East Kunlun eastern Gouli gold metallogenic district-Multiple mineralization information fusion and efficient exploration demonstration study " to research topics. By studying the regional geology and mineralization conditions of Gouli area, combined Remote sensing deposit geology, establish a technology solutions that remote sensing geological prospecting information extraction centric. Integrated use of different resolution remote sensing image combined with field geology and geochemical survey results, exploration and determination the function between ore-controlling factors and Deposit value, according to the some extent inherent statistical relationship between ore-controlling factors and ore prospecting indicators with the amount of resources, select the model unit, statistical analysis using regression analysis, establish the functional relationship of integrated value-the amount of information-the amount of resources between ore-controlling factors and prospecting indicators, then quantitative estimates the amount of resources in the study area, can also be further economic evaluation. The main results are as follows:1. The study on the regional metallogenic background shows that the Gouli gold metallogenic district, with complex tectonic features, intensive magmatism, mostly metamorphism and deformation, has the geological conditions for the formation of superlarge gold deposits. The Kunlun orogenic movement and the medium-acid magma in Indosinian played an important role in ore controlling factors of regional gold deposits.2. This paper analyzes the distribution of each typical deposits in Gouli gold clusters. The area is located near the eastern EW of east Kunlun tectonic belt and between the Kunzhong and Kunnan rupture. Guoluolongwa gold deposit is located in northern ductile shear zone. At the same time, it is the part of the overlap between Guoluolongwa EW axial lens and its north side a small thing in the axial direction of the lens body. The ore body of Asiha-Annage gold deposit produces in the granodiorite-diorite tectonic fracture zones. And it takes control of Kunzhong fault and NNE and NNW-NW fault belt in mine.3. The paper has performed analysis of the linear ring structure interpretation and tonal anomaly on the different resolution images of Quickbird, ASTER, and ETM in the whole study area and the peripheral region, analysis of the image features of the several typical gold deposits in the region, and identify favorable mineralization line-ring structure; after the tone of the results compared with the abnormal area exploration analysis found that the higher the degree of matching.4. On the basis of remote sensing images of different resolutions’s the wire loop structure interpretation of Gouli gold metallogenic district, Consider that qualitative analysis of remote sensing to determine the distribution of some control deposit toward the dominant factor, quantitative analysis of remote sensing lineaments can determine the spatial position of a number of quantitative ore Characteristics.Thus deepen the mine and ore-controlling factors metallogenic understanding of the law.