地质与资源2011，Vol.20Issue(2)：101-106,6.
辽宁板块构造特征及大地构造单元划分
CHARACTERISTICS OF PLATE TECTONICS AND DIVISION OF GEOTECTONIC UNITS IN IJAONING REGION
赵光慧 1关玉波 1赵建军1
作者信息
- 1. 辽宁省矿产勘查院,辽宁,沈阳,110031
- 折叠
摘要
Abstract
Based on the theory of plate tectonics and the results of the 1:50000 regional geological survey in recent years and related achievements, the crustal evolution and development of Liaoning region are analyzed. It is suggested that the crustal development in the region should be divided into Early Precambrian continental accretion tectonic system and Mesoproterozoic plate tectonic system. Because of the discovery of the Mesoarchean-Paleoproterozoic greenstone terrane and Paleoproterozoic rift, the Early Precambrian era can be regarded as primitive plate period; while the Mesoproterozoic to Paleozoic as ancient plate period; and since Mesozoic, modern plate. On this basis, the tectonic units of Liaoning region are divided. The Grade I unit is Tarim-North China plate. Grade Ⅱ involves Tianshan-Chifeng continental margin active belt and North China landmass. The Grade III units include Jianping-Xifeng Variscan continental margin orogeny, HebeiLiaoning massif, Tieling-Qingyuan micro-massif, Liaoning-Jilin massif and Lower Liaohe-Liaodong Bay Cenozoic rift.There are 16 tectonic units of Grade Ⅳ. The characteristics of the 5 units of Grade Ⅲ are described in this paper to clarify the crustal evolution in the region.关键词
板块构造/构造单元/地体构造拼接带/辽宁省Key words
plate tectonics/ geotectonic unit/ continental accretion/ orogeny/ rift/ landmass/ massif/ Liaoning分类
天文与地球科学引用本文复制引用
赵光慧,关玉波,赵建军..辽宁板块构造特征及大地构造单元划分[J].地质与资源,2011,20(2):101-106,6.
