造山带区1/25万区域地质调查方法  

Method of 1∶250 000 Regional Geological Surveying in Orogenic Belts

作　　者：张智勇[1] 张克信[1] 于庆文[2] 龚全胜[3] 梁云海 严城民 

机构地区：[1]中国地质大学地球科学学院,湖北武汉430074 [2]中国地质调查局,北京100035 [3]甘肃地质调查院,甘肃兰州730050 [4]新疆地质调查院,新疆乌鲁木齐830000 [5]云南地质调查院,云南玉溪653100

出　　处：《地球科学（中国地质大学学报）》2002年第4期377-385,共9页Earth Science-Journal of China University of Geosciences

基　　金：中地质调查局"中国西部不同类型造山带及非史密斯地层区域 1/ 2 5万区域地质填图方法研究" .

摘　　要：提出我国造山带 1/ 2 5万填图要以活动论和探索大陆动力学为学术指导思想 ,采用多学科相结合的地质填图调查方法 ,以构造为纲 ,研究总结出造山带大地构造演化各阶段中主要构造单元各岩类区 (沉积岩区、岩浆岩区、变质岩区、混杂岩区 )岩石建造组合及序列 .旨在重点表现造山带的结构、形成、演化及其大地构造基本特点 ,尤其侧重其造山过程和现今造山带的三维结构 .通过填图实践和造山带填图方法研究 ,提出针对造山带区不同岩类区特点应采用不同的地质填图调查方法 ,并分别总结了造山带非史密斯地层、造山带沉积盆地、造山带蛇绿岩、造山带中酸性侵入岩、造山带变质岩、造山带三维结构与大地构造演化模式等造山带区典型岩类区和造山带结构地质填图的若干理论与方法 .其目的是为我国正在大规模开展的“新一轮国土资源大调查”青藏高原空白区 1/ 2 5万区域地质调查 ,提供一套可供借鉴的系统的造山带区地质填图新理论、新方法 ,提高新一轮国土资源大调查造山带区基础地质调查研究程度 .The paper suggests that the geological mapping of 1∶250 000 in orogenic area should take the energical theory and continental dynamics as its academic guide idea and the tectonic as the main line with the geological mapping method which combines multi subjects. It concludes the rock construction and sequence (sedimentary rock province, magmatic rock province, metamorphic rock province, malange province) in the main tectonic units among different tectonic evolution stages in orogenic belts, paying attention to the structure, formation, evolution and basic tectonic characteristics of orogenic belts, especially to the three dimensional structure in orogenic process and orogenic belts nowadays. From the practice and method studies of geological mapping in seven mapping areas of orogenic belts in west China arranged by Geological Survey Bureau of China during 'Ninth Five Year plan', we suggest that we should use different geological methods in different rock provinces and summarize some theories and methods about typical rock provinces and textural geological mapping in orogenic belts respectively, such as non Smith stratigraphy, depositional basins, intrusive igneous rocks, metamorphic rocks, three dimensional structure and tectonic evolutional model of orogenic belts. The main aim of this paper is to provide some new systematic theories and methods about 1∶250 000 regional geological mapping in blank region of Qinghai Tibet plateau among 'new cycle general survey of land and resources' developed on large scale in China and improve the study of basic geological survey in new cycle general survey of land and resources.

关 键 词：区域地质调查方法 造山带 三维结构 理论方法 地质填图 

分 类 号：P622.1[天文地球—地质矿产勘探] P623.1[天文地球—地质学]