Characteristics of Gold Grade Distribution in Maquan Gold Deposit, Gansu Province
详细信息
- 责任者：Ji Zhengke (No. 213 Team ; Gansu Provincial Bureau of Nuclear Geology ; Tianshui 741020 ; China) ; Jiang Qiming
- 刊名：Gansu Geology
- 出版年：2009
- 卷期：18(2)
- 关键词：金矿 ; gold ores ; 矿石品位 ; ore grade ; 甘肃 ; Gansu Province
- 页码：p.30-34, 71
- 图表：1 illus., 7 tables, 6 refs.
- 分类号：1001
- issnNo：ISSN1004-4116
- isbnNo：CN 62-1191/P
摘要
The study to the data of ore grades distribution of main ore body (No.3 and No.4 ore zone) and adjacent ore zone show that the ore quality of No. 4 ore zone is better than the ore of No. 3 ore zone because it has higher gold grade, lower content of waste rock, more quantity of ore easier for mineral dressing than No.3 ore zone, the gold grade of adjacent ore zone are lower than the grade of main ore body. Probability cure of grades in main ore zone of deposit
is basically accord with lognormal distribution. The deposit is homogeneous grade type. It is suggested that marginal grade of oxidized ore should be determined as 0.5×10-6, primary ore as 0.5×10-6, the extra high grade as 29.0×10-6.