摘要
在控制成矿过程的多种参数中 ,构造动力转换可能起着根本的作用 ,以胶东金矿床为主要实例 ,结合国内外有关问题 ,分别论述构造动力体制转换对其它成矿参数转换的制约、多重尺度的构造动力转换、构造动力体制转换所诱发的突发地质事件及伴随的成矿作用 ;详细列举剪切带构造中的临界转换现象 ,重点论述了整体构造背景下的局部转换 (例如 ,总体挤压背景下的局部拉张、总体拉张盆地中的局部封闭 )是一种常见的矿源 运输 汇聚结构。在构造动力体制转换带动下 。
In the process of mineralization, transition of tectonic and dynamic regime may play a fundamental role, controlling the critical transition and forms of mineralization parameters. Taking gold deposits in Jiaodong as an example, combined with related problems both in China and abroad,this paper illustrates multi-dimension transition of tectonic and dynamic regime and its induced accidental geological process and associated mineralization, describes in detail the critical transition phenomena in the shear-belt structure, and points emphatically out that the local transition under the overall structural setting (e.g. local extension under the overall compressional setting and local trap under the full-apart basin) is a common ore source-transportation-concentration structure. Driven by transition of tectonic and dynamic regime, the induced transition of multi-parameters serves as one of the mechanisms for forming large-size deposits.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2002年第2期97-102,共6页
Acta Geoscientica Sinica
基金
国土资源部地质调查项目 (K1.4 1 5 )
国家地质调查局项目 ( 2 0 0 110 2 0 0 0 6 9)
中国地质科学院地质调查项目 (DKD2 10 10 2 8)联合资助
关键词
构造动力体制
成矿作用
构造物理化学参量
临界转换
联动转换
成矿作用
tectonic and dynamic regime mineralization tectonic physicochemical parameter critical transition induced transition
