中南大学学报(自然科学版)2012,Vol.43Issue(9):3558-3564,7.
奇异性理论在钦杭成矿带(南段)庞西垌银金矿产资源预测中的应用
Application of singularity theory in prediction of silver and gold mineral deposits in Qinzhou—Hangzhou tectonic joint belt Pangxidong Area, Guangdong, China
摘要
Abstract
Taking Pangxidong silver gold mine prediction as an example, the application of singularity theory in mineral deposits prediction was studied. Based on the fact that the geochemical is abnormal and the threshold selection is difficult, singularity analysis method was used to map geochemicai singular value. In order to understand the variation of shallow and deep mineralization types in Pangxidong area, S-A generalized self-similar method was used to decompose complex anomalies, and combines with the spatial principal component analysis method to delineate complex anomalies of trace elements such as Ag, Au, Cu, Pb and Zn. Tte results show that the singularity analysis method not only emphasizes the data on the statistical characteristics, but also pays attention to the feature in the spatial domain, identifies and delineates anomalies from a variety perspective of geochemical data sets. The anomaly extracted by S-A method agrees with the known ore deposits which are mainly in Tangpeng area. There are a few known ore deposits in Shijiao area where the anomalies are weak. The anomaly of the area by S-A method shows that there may be concealed deposits, which can be investigated by further work.关键词
奇异性/地球化学异常/矿产资源预测/钦州湾—杭州湾成矿带(南段)/庞西垌Key words
singularity/geochemical anomaly/mineral resources prediction/Qinzhou-Hangzhou Tectonic Joint Belt/Pangxidong分类
天文与地球科学引用本文复制引用
张焱,周永章..奇异性理论在钦杭成矿带(南段)庞西垌银金矿产资源预测中的应用[J].中南大学学报(自然科学版),2012,43(9):3558-3564,7.基金项目
国家青年科学基金资助项目(41004051) (41004051)
全国矿产资源潜力评价项目([2007]038-01-18) ([2007]038-01-18)
广东庞西垌地区矿产远景调查项目(1212010071012) (1212010071012)