北亚克拉通和造山带金属成矿作用及其相关的地球动力学研究  

STUDYING SITUATION AND ADVANCES ABOUT METALLOGENY AND GEODYNAMICS OF THE NORTH ASIAN CRATON AND FRAMING OROGENIC BELTS

作　　者：刘凤山[1] 

机构地区：[1]国土资源部地质调查局

出　　处：《地学前缘》1999年第1期129-137,共9页Earth Science Frontiers

摘　　要：“北亚克拉通和造山带金属成矿作用、石油资源及地球动力学”国际研讨会上各国地质学家发表了各自的北亚地区金属成矿作用、石油资源及地球动力学观点，对早前寒武纪、西伯利亚克拉通、造山带、板内裂谷等成矿作用及其相关的地球动力学等方面进行了广泛、深入的研讨，基本反映了近些年来北亚地区在金属成矿作用及其有关的地球动力学方面研究现状和取得的进展。西伯利亚克拉通和褶皱造山带有明显的区别。前者演化历史可以分为前寒武纪—早中生代增生和中—新生代裂谷作用两个阶段，早前寒武纪成矿作用主要受区域深大断裂多期拉张和挤压、克拉通内古断裂的形成、古断裂中火山岩喷出或花岗岩类侵入等地球动力学控制，中生代金属成矿作用主要受深部地壳动力学过程控制。造山带包括了新元古代、古生代及中生代不同时期的大洋，主要有大洋、岛弧、大陆边缘、汇聚碰撞、碰撞后五大成矿地球动力学环境。On August 25～28, 1998, the international metallogenic conference: “Metallogeny, Fuel Resources, and Geodynamics of the North Asian Craton and Framing Orogenic Belts' has been held in Irkutsk, Russia. Many geologists gave out their viewpoints about metallogeny, fuel resources and geodynamics of the North Asian area, and specially widely discussed on metallogeny and geodynamics of the early Precambrian, the Siberian Craton, orogenic belts, intraplate rifting etc. From this meeting, the author could know the studying situation and advances about metallogeny and geodynamics of the North Asian Craton and framing orogenic belts as below. There are significant differences between the Siberian Craton and its framing orogenic belts. In terms of geodynamics concept of lithosphere plates, the history of the Siberian Craton development is divided into two stages: Precambrian Early Mesozoic accretion and Mesozoic Cenozoic rifting. The Precambrian metallogeny is controlled by three kinds of geodynamics: (1) multiple extension and compression of deep faults and accompanying regional fractures, (2) intracratonic paleorift formation, (3) filling of paleorift with volcanoes and granitoids. Mesozoic metallogeny is controlled by deep crustal geodynamics. These orogenic belts enclose the oceans of different ages, e.g. late Proterozoic, Paleozoic and Mesozoic, and have five large geodynamic environments: ocean, island, continental margin, collision, post collision, and there are different types of metallogeny in five geodynamic environments.

关 键 词：造山带 地球动力学 金属矿床 成矿作用 

分 类 号：P618.205[天文地球—矿床学] P541[天文地球—地质学]