A Study on the Relationship of Original Soil and Mother
西秦岭金矿化带中土壤与岩石实验室光谱相关性研究

In this paper, We mainly present the method of exploring gold deposits covered by original soils from weathered rocks by means of analyzing and studying the laboratory spectrum's relationship of both original soil and its weathering mother_rock. In western Qinling Mountains, there are several large scale gold deposits in metallographic provinces. In the past, remote sensing technology was used to investigate this area, however, gold deposits exploration still have not been broken out. As bed_rocks are covered by vegetation and soils, it is very difficult to efficiently apply remote sensing technology. During our study of remote sensing information characteristics on the earth, we found that most bed_rocks are fortunately covered by original soils in gold metallographic provinces. Therefore, we hope that gold deposits covered by original soils can be directly determined by using the spectrum features of the soils overlain the bed_rocks. The analyzed relevant samples were collected from several typical known gold mining areas, Pearson's correlation analysis was adopted in order to study the linear correlation between soils and their corresponding rocks, at the same time, the obtained correlation coefficients were tested by means of Two_tailed method. To single layer samples (original soil directly covers bed_rock), their correlation coefficients are in high positive relationship, the average number is about 0 942. To multi_layer samples (more than one soil layer cover the bed_rock), the correlation coefficients are lower, however, there are still 0 763 in positive correlation. According to our results, we can conclude that there is a high positive relationship to the spectrum of both original soil and its weathering mother_rock. It is possible for us to extract gold deposits information from covering original soil's spectrum and provide a new method for gold deposits exploration.