| 岳石.粤西河台金矿床构造控矿规律研究[J].地质找矿论丛,1989,(4):22-34 |
| 粤西河台金矿床构造控矿规律研究 |
| STUDY ON THE STRUCTURAL CONTROLS OF GOLD MINERALIZATIONS IN HETAI REGION, WESTERN GUANGDONG |
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| DOI：10.6053/j.issn.1001-1412.1989.4. 003 |
| 中文关键词: 韧性变形 肘状构造 糜棱岩 构造 成矿模式 成矿期 |
| 英文关键词: |
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| 中文摘要: |
| 本文是在全面调查了粤西河台金矿区内构造特征与成矿特征之后,对该区构造发育规律及控矿规律所做的系统总结.文中对矿区存在的一个重要构造型式——拐肘构造及其对金矿的控制作用作了论述,对成矿的物质来源、成矿期次与构造演化的关系进行了讨论,提出了三期成矿的观点和构造矿源带的概念,总结了该区的构造成矿模式. |
| 英文摘要: |
| Hetai gold ore deposits are located on the side of Wuchuan-Sihui Structural Zones with ductile shearing, ductile compression and brittle faulting and in the intensely deformed part of a S-shaped Structure developed in western Guangdong. Hetai gold ore deposits are controled by mylonite belts which develop with a new structure pattern called Hetai Elbow-like Structure, a ductile contortion structure. Structures in Hetai region include Latitudinal Structural System and Cathysian Structural System, which are dominated by ductile deformations; Elbow-like Structure with ductile deformation too, and Neocathysian Structural System with brittle faulting. Three period of structural deformations control the three stages of mineralizations. The first stage of gold mineralization is widely developed and has constituted a gold ore resource belt for further gold mineralizations. The second stage of gold mineraliztion lead gold mobilized and migrated the gold to the mylonite belts. The third stage of gold mineralization has concentrated the gold further and formed the gold ore bodies with higher gold content in faults. It is attributed to the tectonic movements that lead to the raise of the metallogenetic material from a deeper level of the crust to the upper, the migration and accumulation of the metallogenetic material for several times, and finally the formation of the gold ore deposits. A tectonic and mineralization model has been set up in this paper. |
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