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DISTRIBUTION CHARACTERS OF COPPER AND NICKEL RESERVE-GRADE IN CHINA

ZHOU Jing-ying,SUN Yan-mian(Beijing Institute of Geology for Mineral Resource,Beijing 100012)  
On the base of all the copper and nickel reserves and grades data up to the end of 2002,it is point out that ore types should be regarded as statistic unit of reserve and grade for the first time.Distribution characters of copper and nickel reserve-grade in China are discussed.
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