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USING TENDENCY ANALYSIS METHOD TO DEAL WITH GEOCHEMICAL DATA BASED ON THE SURFER SOFTWARE

LI Sui-min1,YAO Shu-zhen2,HAN Yu-chou3(1.Shijiazhuang College of Economy,Shijiazhuang 050031;2.Faculty of Earth Resources,China University of Geosciences,Wuhan 430074;3.Hebei Bureau of Geology and Exploration,Shijiazhuang 050081)  
Element distribution is usually controlled by a series of factors and shown systematic changes on the space in the crust with tendency of regional increase or decrease.One of important task for geochemical exploration is how to find local element concentration region in the space,and it is the key problem how to distinguish anomaly from element background values.Tendency analysis method divides element distribution into ensemble trend and local anomaly,and separates local anomaly from ensemble trend.This paper deals with geochemical data of Ba,Cu and Zn element by using tendency analysis method,illuminates how to draw geochemical element distribution utilizing the Surfer software.Compared with traditional methods,it is concluded that tendency analysis method are more adapted to real geological situation.
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