New Understanding of Structures in the Jingtieshan Iron-Ore Deposit, Gansu Province
详细信息
- 责任者：Guo Shaofeng (Laboratory of Metallogeny and Mineral Assessment ; MLR ; Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Liu Xinyu
- 刊名：Geology and Prospecting
- 出版年：2013
- 卷期：49(1)
- 关键词：铁矿 ; iron ores ; 甘肃 ; Gansu Province
- 页码：p.123-129
- 图表：illus., 22 refs.
- 分类号：1001
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
The Jingtieshan iron-ore mine in Gansu Province, which holds 400 million tons of iron ores at present, is an important iron and steel base in northwestern China. It also attracts much attention for its medium-sized copper deposit. Previous mining exploration considered that it was controlled by syncline structures, and there are no other iron-ore bodies at depth. Based on this view, the deep and peripheral prospecting almost stopped since the 1990s expect some limited productive exploration work, and the orebodies III, IV, VI and VII were closed successively. This study analyzes the ore-controlling features of the Heigou ore district and the relationship between joints and phyllitic cleavage. The results show that the Jingtieshan deposit is not a syncline structure. The ore bodies are controlled by faults as represented by the Heigou mining area. The deep and peripheral regions have a great prospecting potential in the Jingtieshan mining area.
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