格里戈良分带指数法的改良

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The Improved Gregorian’s Zoning Index Calculating Method

WANG Jian-xin¹，ZANG Xing-yun^1,2，GUO Xiu-feng^1,3，XIE Hai-dong¹，ZHAO Li-gang¹，SUN Yong-jie²

1.College of Earth Sciences, Jilin University,Changchun 130026,China;2.Institute of Geologic Investigation of Jilin Province, Changchun 130026, China;3.Department of Geology, Northwest University，Xi’an 710069, China

Received:2007-01-16 Revised:1900-01-01 Online:2007-09-26 Published:2007-09-26
Contact: WANG Jian-xin

Abstract

Abstract: The text takes the calculation of elemental vertical zoning of ZK001 in Yantonglazi Cu-Au deposit as an example, puts forward two improved aspects of calculating the Gregorian’s zoning index: in preparing the original data, normalization method of cluster analysis is used to get data format of \[0,1\] for deceasing calculation and for avoiding some manmade error; in calculating the variation degree, the reciprocal of the variation degree from traditional Gregorian’s zoning index method is used to represent the variation degree. This improvement can solve the problem that sometimes calculation cannot be carried out when some zoning index are zero. The calculation result by the method present here seems to match the geology in study area better than that by traditional Gregorian’s zoning index calculation method.

Key words: Gregorian’s method, zoning sequence, zoning index, variation degree

CLC Number:

P618.2

WANG Jian-xin，ZANG Xing-yun，GUO Xiu-feng，XIE Hai-dong，ZHAO Li-gang，SUN Yong-jie. The Improved Gregorian’s Zoning Index Calculating Method[J].J4, 2007, 37(5): 884-0888.

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The Improved Gregorian’s Zoning Index Calculating Method

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