| 江西冷水坑银-铅-锌矿田地质特征及构造控岩控矿作用 |
| |
| 关键词: |
| 基金项目: |
|
| 摘要点击次数: 3351 |
| 全文下载次数: 2748 |
| 摘要: |
| GEOLOGICAL CHARACTERISTICS AND ROLE OF STRUCTURAL CONTROL OF ROCKS AND ORES IN THE LENGSHUIKENG Ag-Pb-Zn ORE FIELD,JIANGXI |
| The Ag-Pb-Zn deposits of Lengshuikeng ore field belong to the postma-gmatic high-and middle-temperature hydrothermal deposits relating to the porphyry. On the basis of the Cathaysiau system, the Hushi-Lingxi fault (called F, in the fieid) which formed in the early stage of the Neocathys-ian system is the important passageways controlling the magma and mineralization. The Yinluling granite-porphyry as the major minerogenic mother rock occurred in the structural fracture zone between faults F1 and F2. (Fig. 2)The ore deposits and ore bodies are mainly controlled by fractures in the ore field. The trend of migration of the main metallogenetic elements near faults of metallizing phase in the ore field was that ore-forming elements moved to the centre of the faults, and contents of elements decreased gradully away from the centre. Additionally, comparision variation chart of conents of the metallogenic elements with that of joint densities displays that they are synchronous, suggesting the mineralization is closely related with the development degree of the joints(Fig. 5,6).Statistics of the ore vein occurrences in the different levels in Yinluling deposit shows the NE-trending veins with NW-dip are dominant, and another set of SE-dipping conjugated veins are also developed. These two sets of veins make up the"X-type"structure in vertical section. |
| LIU Xun,SHEN Shi-liang.1991.GEOLOGICAL CHARACTERISTICS AND ROLE OF STRUCTURAL CONTROL OF ROCKS AND ORES IN THE LENGSHUIKENG Ag-Pb-Zn ORE FIELD,JIANGXI[J].Acta Geoscientica Sinica,12(3):1-18. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
|