%0 Journal Article
%T The Recognition and Extraction of Geochemical Composite Anomalies: A Case Study of Pangxidong Area<br>广东庞西垌地区地球化学组合异常识别与提取
%A 张焱
%A 周永章
%A 王正海
%A 黄锐
%A 吕文超
%A 王林峰
%A 梁锦
%A 曾长育
%J 地球学报
%D 2011
%I 
%X In order to study the spatial combination distribution of geochemical elements, the authors used factor-kriging method to construct a combinational model for identifying combinations of geochemical anomalies, and employed fractal filtering technique to strengthen weak anomalies and separate anomaly and background. The composite anomaly model was combined with fractal filtering techniques for processing and analyzing geochemical data obtained from 1:50000 stream sediment geochemical survey at Pangxidong in the southern segment of Qinzhou-Hangzhou juncture zone, with the purpose of looking for ore-related anomalies and finding unknown deposits. The results show that composite anomalies from combinational variables are consistent with known mineralization of the study area. Although the composite anomalies can not fully reflect local anomalies, high anomaly areas can indicate direction for exploring unknown deposits and, on such a basis, anomaly and background separated from composite anomalies by using fractal filtering technique can provide guidance for further work.
%K geochemical composite anomaly
%K factor-kriging model
%K fractal filtering techniques
%K Pangxidong
%K stream sediments<br>地球化学组合异常
%K 因子泛克里格
%K 分形滤波技术
%K 庞西垌
%K 水系沉积物
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=1DF69A47DE80569EC8F859DF61571180&aid=0708514DFA112793352C933A65436C22&yid=9377ED8094509821&vid=9971A5E270697F23&iid=94C357A881DFC066&sid=FF58680609C9D068&eid=DFBC046213B3DD86&journal_id=1006-3021&journal_name=地球学报&referenced_num=1&reference_num=43