APPLICATION OF VARIATION FUNCTION IN MANJIAZHAI Sn-Zn POLYMETALLIC DEPOSIT, YUNNAN PROVINCE
JIA Feng-qin1, YAN Yong-feng1, QIN De-xian1, LI Shi-lei2
1. Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunmmg 650093, China; 2. Sichuan Chuanwei Group Co. Ltd., Chengdu 610100, China
Abstract：Variation function, which is the core and a basic tool of geostatistics, can describe not only the spatial structure change, but also the randomicity change of the regional variable. Moreover its calculation is the foundation of many other calculations of geostatistics. Based on the study of geological characteristics of Sn-Zn ore in Manjiazhai deposit with variogram theory, the grades of Sn and Zn are simulated and structurally analyzed by variation function, which may offer a scientific support for reserves calculation and exploration.
2007, Vol. 16 
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