THE APPLICATION OF TREND SURFACE ANALYSIS TO DELINEATING GEOCHEMICAL ANOMALIES IN LONGGUAN AREA AND ITS EFFECT
LI Bin1, LI Sui-min2, HAN Teng-fei1, HAN Yu-chou3
1. Hebei Institute of Geological Survey, Shijiazhuang 050081, China;
2. College of Resources, Shijiazhuang University of Economics, Shijiazhuang 050031, China;
3. Hebei Bureau of Geology and Mineral Resources, Shijiazhuang 050081, China
Abstract With 1∶200 000 stream sediment survey data of Longguan area in Hebei Province as an example and by using trend surface analysis, the authors employed different orders of polynomial to fit the overall distribution trend of geochemical elements, recognized local anomalies and drew the anomaly distribution map. Based on a comparison with the traditional average method, this paper evaluated the application results of the trend surface method for Pb, Zn, Ag, Au and Cu, thus providing reference for geochemical work in similar areas.
Received: 13 January 2011
Published: 10 April 2012
