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浙江中生代陆内造山的基本特点和几次重要地质事件
引用本文:包超民,兰翔.浙江中生代陆内造山的基本特点和几次重要地质事件[J].浙江国土资源,1997(2).
作者姓名:包超民  兰翔
作者单位:浙江省区域地质调查大队!萧山,311201(包超民),浙江大学地球科学系!杭州,310027(兰翔)
摘    要:浙江中生代地壳具有厚度大,比较成熟的特点。在占太平洋板块对欧亚大陆板块的碰撞等作用下,先后经历了聚敛、剪切(先强烈左旋后右旋)和引张机制,发生了强烈的陆内造山作用。可以分辨出的构造事件,分别称之为印支运动(195Ma前)、兰江运动(155Ma~150Ma前)、闽浙运动(125Ma~120Ma前)、丽水运动(110Ma~105Ma前)和狭义的燕山运动(70Ma前)。总体特点:首先是构造强度愈晚愈弱;其次是均伴有构造格架的变迁,即变格运动。每次构造事件在浙江和华南均保存有构造不整合面,其间的地层亦自称体系。

关 键 词:印支运动  兰江运动  闽浙运动  丽水运动  燕山运动  陆内造山  变格运动

THE BASIC FEATURES OF MESOZOIC INTRACONTINENTAL OROPENIC MOVEMENT AND TTS MAIN GEOLOGICAL EVENTS IN ZHEJIANG PROVINCE
Authors:Bao Chaomin
Abstract:The Mesozoic crust of Zhejiang Province is characterized by its big thickness and maturity.By the collision between thew paleo-Pacific plate and the Eurasian continental plate, it experi enced convergence, shearing (first strongly levorotated and then dextroratated) and extension,and strong intracontinental orogenic movement wsa caused. Distingwishable tectonic events in cluded Indosinian movement (195Ma), Lanjiang movement (155~ 150Ma), Mingzhe movement (125 ~ 120Mao, Lishui Movement (110 ~ 105Ma) and Yanshanian movement (70Ma ). The gen eral features included: (1) the tectonic strength became weaker when the time was later; (2) the tectonic framework was deformed. Each tectonic event left tectonic unconformable planes in Zhe jiang Province and Southern China, and the strata of this peried were self-systematized.
Keywords:Indosinian movement  Lanjiang movement  Mingzhe Movement  Lishui Movement  Yanshanian movement  intracontinental orogenic movement  framework deformation
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