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华北古大陆与哥伦比亚超大陆
引用本文:陆松年,杨春亮,李怀坤,陈志宏.华北古大陆与哥伦比亚超大陆[J].地学前缘,2002,9(4):225-233.
作者姓名:陆松年  杨春亮  李怀坤  陈志宏
作者单位:天津地质矿产研究所,天津,300170
基金项目:国家自然科学基金重点项目 (4 0 0 3 2 0 10C),中国地质调查综合研究项目 (2 0 0 113 90 0 0 70 )
摘    要:由Rogers和Santosh等 (2 0 0 2 )提出的哥伦比亚超大陆 ,是约从 1.9~ 1.5Ga由Nena ,Ur和Atlantic等 3个大陆块体群 ,通过逐步汇聚而形成的一个超级大陆。它是前罗迪尼亚古 -中元古时期的超大陆。从 1.5Ga开始的裂解作用使哥伦比亚超大陆逐步破裂 ,并在 1.0Ga左右这些破裂的大陆块体又重新汇聚形成罗迪尼亚超大陆。文中除介绍Rogers等提出的哥伦比亚超大陆的概念、组成和古大陆重建图外 ,重点阐述了中国华北古大陆 2 .0~ 1.8Ga期间吕梁—中条造山运动和 1.8~1.6Ga时期大规模裂解事件群的性质、特点和同位素年龄数据。文中提出哥伦比亚超大陆汇聚主要峰期与吕梁—中条造山运动的时限相一致 ,华北古大陆属于哥伦比亚超大陆的组成部分 ,并可能为Nena大陆块体群的一员 ,在造山及裂解事件群的性质、特点和时代等特征上 ,华北与北美、西伯利亚和西北欧有更大的相似性。

关 键 词:华北古大陆  哥伦比亚超大陆  古—中元古代  汇聚与裂解
文章编号:1005-2321(2002)04-0225-09
修稿时间:2002年3月4日

NORTH CHINA CONTINENT AND COLUMBIA SUPERCONTINENT
LU Song-nian,YANG Chun-liang,LI Huai-kun,CHEN Zhi-hong.NORTH CHINA CONTINENT AND COLUMBIA SUPERCONTINENT[J].Earth Science Frontiers,2002,9(4):225-233.
Authors:LU Song-nian  YANG Chun-liang  LI Huai-kun  CHEN Zhi-hong
Abstract:The Columbia Supercontinent proposed by Rogers and Santosh (2002) was composed of the Nena, Ur and Atlantic continents from 1.9 Ga to 1.5 Ga. It is a Pre-Rodinia supercontinent, which was broken-up to fragments at 1.5 Ga and re-assembled to the Rodinia Supercontinent about 1.0 Ga. Besides to introduce the concept, component and configuration of the Columbia Supercontinent, the nature, character and isotopic age of the Luliang-Zhongtiao Orogen between 2.0 Ga and 1.8 Ga and a group of rifting events from 1.8 Ga to 1.6 Ga in the North China Continent are especially described in this paper. The authors point out that the peak time range of the Columbia Supercontinent assembly is just similar to that of the Luliang-Zhongtiao Orogen in the North China Continent, and that the North China belonged to the component of the Columbia Supercontinent and was possible to be a member of the Nena. During the Paleo-Mesoproterozoic period, the geological event of the North China Continent was more similar to that of the North American,Siberia and Northwest Europe in the nature,feature and time range.
Keywords:North China Continent  Columbia Supercontinent  Paleo-Mesoproterozoic  assembly and break-up
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