| 陈正乐,杨风.阿尔金地区构造应力场及其对金属矿产分布的控制作用[J].地质与勘探,2002,(5):18-23 |
| 阿尔金地区构造应力场及其对金属矿产分布的控制作用 |
| STUDY ON THE STECTONICS TRESS FIELD OF IN THE ALTYN TAGH AREA AND ITS CONTROLLING TO THE DISTRIBUTION OF METAL DEPOSITS |
| 修订日期：2001-10-31 |
| DOI： |
| 中文关键词: 阿尔金地区 构造应力场 控制作用 金属矿产 分布规律 有限元法 |
| 英文关键词: Altyn Tagh, tectonic stress field, metal deposits |
| 基金项目:国家重点基础研究 (2 0 0 1CB40 980 8)，国家“九五”攻关 3 0 5项目 (96-915 -0 6-0 1B)，国家大地调项目 (K1.1.2 .3 )联合资助。 |
| 陈正乐 杨风 |
| [1]中国地质科学院地质力学研究所，北京100081 [2]新疆地质调查院，乌鲁木齐810001 |
| 摘要点击次数: 2175 |
| 全文下载次数: 1363 |
| 中文摘要: |
| 构造应力场研究可以为区域矿产预测提供依据。主要根据节理、擦痕的测试分析，结合区域构造解析，确定阿尔金山东西向拉配泉－－红柳沟构造带经历了三期不同方向的应力作用：印支期以前的南北向挤压作用，印支－燕山期的北西－南东向的挤压和中生代晚期－新生代北东东－南南西向的挤压；并利用有限元数值模拟前两期构造应力场的演变过程，进而讨论了区域构造应力场对内生金属矿产分布规律的控制作用指出了区域寻找大型内生金属矿产的有利地段。 |
| 英文摘要: |
| Studies on the tectonic stress field can provide necessary evidence for prospecting of regional deposits. This contribution mainly present analyses data from conjugate joints developed in granites, striation lineations, and regional structural interpretation to document the evolution history of regional tectonic stress field and its controlling to the distribution of metal deposits. The result showed that the EW-trending Hongliugou-Lapeiquan structural belt has experienced three stages of deformation: Pre-Indo sinian NS-trending, Indo Sinian to Yanshanian NW-SE-trending and Late Mesozoic to Cenozoic NEE-trending compression deformation. Finite mathematical modeling experiment was applied to reconstruct the evolution history of the regional stress field. Furthermore, the controlling of the tectonic stress field to the distribution of inner-metal deposits in this area was discussed. Accordingly, the authors suggested that regional favorable ore-forming areas were located in conjunction areas of the north Altyn Tagh fault with its lower-grade faults. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
