• 责任者：Ma Baojun (College of Resources ; Shijiazhuang University of Economics ; Shijiazhuang 050031 ; China) ; Niu Shuyin
• 刊名：Geotectonica et Metallogenia
• 出版年：2012
• 卷期：36(4)
• 关键词：金矿 ; gold ores ; 构造应力场 ; tectonic stress field ; 内蒙古 ; Inner Mongolia
• 页码：p.530-540
• 图表：5 illus., 1 table, 29 refs.
• 分类号：1001
• issnNo：ISSN1001-1552
• isbnNo：CN44-1595/P

In order to study the characteristics of ore-controlling structures and the evolution processes of tectonic stress field in the Hadamengou area,the regional joints,combined with deposit geological features and regional tectonic evolution were investigated. The results show that the ore formation was directly related to the potassic alteration in the foreland structure zone, which connected underlying pluton in the core part of the complex fold with the shallow joints,and acted as the major channel of fluid migration. The evolution processes of the tectonic stress field can be divided into four periods. The first period occurred in the Wulashan movement of Late Archean. The second period occurred in Late Paleozoic. The third period deformation was the main ore-forming period took place in the middle to late Yanshanian. The fourth period post-mineralization deformation occurred during and after the Late Yanshanian.The nearly upright σ₁ caused the tectonic uplift and resulted in the exposure and denudation of the mining area.