| 动力系统转换与金成矿作用 |
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| 引用本文：.2001.Dynamic System Transformation and Gold Ore-forming Process[J].Mineral Deposits,20(1):71~77 |
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| 基金项目:教育都“高等学校骨干教师资助计划项目”、国家攀登计划项目（95-预-25）、国土资源部“百名跨世纪科技人才培养计划”基金(9808)和国家重点基础研究发展规划项目(G1999043206) |
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| 中文摘要:动力系统转换与成矿是成矿作用动力学深层次的探索，它是在单一动力系统基础上进行系统与系统间成矿作用的研究。经对华北地台北缘夹皮沟金矿带的研究，认为它们主要分布在多性质动力系统之间，即海底扩张-大陆张裂之间、古陆隆起-边缘滑脱之间、韧-脆性剪切之间和高序次一低序次之间的转换和过渡地带，各过渡地带的构造转换机制分别经历过分支拉压双生性、蠕变重熔活化性、对剪渗透萃取性和弯曲脉动贯人性四个阶段。对各阶段不同动力系统间的转换成矿机制的研究将加深对金矿床成因和成矿背景的认识，通过各自动力系统的鉴别，可将成矿预测集中转向于不同动力系统间的转换地段。 |
| 中文关键词:动力系统转换, 金成矿作用, 构造环境, 过渡构造转换机制 |
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| Dynamic System Transformation and Gold Ore-forming Process |
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| Abstract:Dynamic system transformation and ore-forming process constitute deep-level researches in metallogenic dynamics, being a metallogenic study between different systems on the basis of a single dynamic system. A study of the Jiapigou gold deposit indicates that gold deposits on the northern margin in the North Chimplatform are mainly distributed in the transformation areas between seafloor spreading and continental tensior fracture, between ancient continental uplift and edge delamination, between ductile shear and brittle shear am between high order and low order. Tectonic transformation mechanism of every transformation area underwen four stages, namely ① twinning of branch tension-compress, tension-tension, and compress-compress; ② wriggling, melting and mobilization; ③ opposing shearing, osmosis and drawing; ④ bending and pulsiry injection. A study on transforming metallogenic mechanism of different dynamic systems at different stages wil broaden our knowledge on geneses and metallogenic settings of gold deposits. According to differences between dynamic systems, the metallogenic prognosis can be turned mainly to the transformation area between differen dynamic systems. |
| keywords:dynamic system transformation, gold ore-forming process, tectonic setting, transition, tectonic transformation mechanism |
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