Fluids double-fracturing genetic mechanism and mineralization of gold-copper of the breccia pipe at Qibaoshan in Shandong Province
文献类型：期刊论文
| 作者 | Xu, XW; Cai, XP; Qin, DJ; Wang, J; Liang, GH; Zhang, XY; Liu, LJ |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2000-04-01 |
| 卷号 | 43期号:2页码:113-121 |
| 关键词 | breccia pipe double-fracturing of fluids genetic mechanism mineralization of gold-copper deposit Qibaoshan |
| ISSN号 | 1006-9313 |
| 文献子类 | Article |
| 英文摘要 | After studying the characteristics and special texture of the fluidogenous tectonics, mineral assemblage in the cemented vein between breccia and their special distribution, and stress analyzing the joint structures in and around the breccia pipe, it is found that the observed phenomena are caused by a new tectonic dynamic mechanics of fluid-double-fracturing caused by temperature and pressure of fluids and pulsating expansion. Under the actions of thermal stress and the pressure of fluids, thermal cracks and joints that developed along parts of the thermal cracks formed systematically in the rocks. Under these conditions, up-arching fracture zones that pulsatively expanded upward and cylindrical pressing breccia body were formed. Rocks at the peak of the pyramidal fractures zone break down instantly. Where the difference between pressure of fluids and the overburden pressure exceeded greatly the competence of the rocks, fluid junctions occurred and the velocity of the fluid flow increased as a result. Explosive body expanded upward in the shape of an inverse cone, cone-like explosive breccia body and cover-like shattering breccia body located on the upper part of the breccia pipe were ultimately formed. Gold-rich fluids were enriched and mineralized near the boiling surface in the lower part of the inverse cone-like explosive breccia body where temperature and pressure decreased rapidly, while copper-rich fluids were enriched and mineralized in the junction area where temperature and pressure were relatively high. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000085845700001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/76069]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Xu, XW |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Qibaoshan Gold Corp, Wuliang 262321, Shangdong Prov, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, XW,Cai, XP,Qin, DJ,et al. Fluids double-fracturing genetic mechanism and mineralization of gold-copper of the breccia pipe at Qibaoshan in Shandong Province[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2000,43(2):113-121. |
| APA | Xu, XW.,Cai, XP.,Qin, DJ.,Wang, J.,Liang, GH.,...&Liu, LJ.(2000).Fluids double-fracturing genetic mechanism and mineralization of gold-copper of the breccia pipe at Qibaoshan in Shandong Province.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,43(2),113-121. |
| MLA | Xu, XW,et al."Fluids double-fracturing genetic mechanism and mineralization of gold-copper of the breccia pipe at Qibaoshan in Shandong Province".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 43.2(2000):113-121. |
入库方式： OAI收割
来源：地质与地球物理研究所
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