| 中国南方砂页岩铜矿床地球化学和成矿动力学研究 | |
| Alternative Title | Geochemistry and Ore-forming Dynamics of Sandshale Copper Deosits in South China |
| 谭凯旋 | |
| 1994 | |
| Degree Grantor | 中国科学院地球化学研究所 |
| Place of Conferral | 中国科学院地球化学研究所 |
| Degree Name | 博士 |
| Degree Discipline | 地球化学(geochemistry) |
| Keyword | 反应动力学 生长动力学 混沌吸引子 聚流成矿 流动－－反应耦合和反馈 分形分维 砂页岩铜矿 |
| Abstract | 本文对我国南方的主要砂页岩铜矿床的地质地球化学特征、铜矿物溶解、生长和成矿作用的非线性动力学进行了深入的研究。实验获得了辉铜矿、黄铜矿和斑铜矿的溶解速率常数和反应活化能，发现了铜矿物溶解作用的混沌动力学特征。砂页岩铜矿床的形成是由于含铜热液在孔隙砂岩中发生的流体流动－－溶解和沉淀反应的非线性藕合和反馈而产生的“聚流成矿作用”。流动－－反应反馈引起了成矿反应前锋形态不稳定性并控制了矿体的形态、规划与空间分布，运用计算机模拟分析了各种动力学影响因素。 |
| Other Abstract | The paper studies the geological and geochemical characteristics and nontinear dynamics of dissolution and growth of copper mineral and ore-forming of mainly sandshale copper deposits in South China. Rate constants and reactive activation energy of dissolution of chalcocite, chalcopyrite and bornite are obtained by experiment. The chaotic dynamic characters of dissolution of copper minerals are found. The formation of sandshale copper deposits is due to a flow-focusing ore-forming processes driven by nonlinear coupled and feedback of dissolution-precipitation reaction and flow of Cu-bearing thermal solutions in porous ssandshales. Nonlinear coupled of fluid flow and chemical reaction brought and controlled the form, size and space distribution of ore bodies. Dynamic factors of influence on ore-forming processes are analysed by means of computer numerical simulations. |
| Pages | 195 |
| Language | 中文 |
| Document Type | 学位论文 |
| Identifier | http://ir.gyig.ac.cn/handle/352002/3944 |
| Collection | 研究生_研究生_学位论文 |
| Recommended Citation GB/T 7714 | 谭凯旋. 中国南方砂页岩铜矿床地球化学和成矿动力学研究[D]. 中国科学院地球化学研究所. 中国科学院地球化学研究所,1994. |
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