| 论造山带的内部结构 |
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| 引用本文： | 高坪仙.论造山带的内部结构[J].地质调查与研究,1999(3). |
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| 作者姓名： | 高坪仙 |
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| 作者单位： | 天津地质矿产研究所!天津，3000170 |
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| 摘 要： | 造山带研究的主要内容包括空间、时间、结构和组成。地质学家对各具特色的造山带提出了不同的构造变形组合型式和它们内部构造单元划分方案。大地构造相在一定程度上揭示了造山带形成演化的规律。通过对研究程度较高的一些典型造山带构造单元的分析，以及对其岩性、内部构造、边界关系和演化历史的标志识别，可以判断造山作用发生的时间、强度和期次。
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| 关 键 词： | 造山带 大地构造相 构造单元 造山带结构 |
OROGENIC BELT FRAMEWORK (CONSTRUCTION) |
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| Gao Pingxian.OROGENIC BELT FRAMEWORK (CONSTRUCTION)[J].Geological Survey and Research,1999(3). |
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| Authors: | Gao Pingxian |
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| Abstract: | The evolution of orogenic belts is the main part of the global continentallithosphere growth. The orogenic belts formed in the convergent margin of plates, usuallyconstituted by several tectonic facies. They are intensely deformed structural zones. Tectonicfacies may represent formation and evolution of orogenic belts, identify the varied tectonicframework of orogenic belts and clarify the tectonic elements developed in different periods as wellas the relationship between the superficial and deep seated structures.A complicated, grand scale orogenic belt can be devided into some relatively steadyintermediate massives, massives or micromassives and relatively active tectonic zones or suturalzones. For example, North Qinling orogenic belt along southern margin of North China Cratonrnainly consists of back-arc basin assemblages, island arc complex, and Masoprototerozoicophiolite relics (1 000 Ma). The southern side of North China Craton is reworked and truncatedby fouth Qinling-Dabie Phanerozoic orogenic belt.Orogenic belts develope fold-thrust zones and foreland basins, and tectionic melange stracturalunits. According to movement law, orogenic belts in the different times and areas apper thestructural units of similar formation environmnt, deformation types and similar tectonicfunction. Studying the diffrerent types of the structural units of orOgenic belts, their lithologiccharacters, interior structures, boundary conditions and evolution marks may determine the timeof the oregenies, strength and phases, in order to analyse their geodynamical process. |
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| Keywords: | orogenic belt orogenic belt framework tectonic facies structural unit |
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