晚新生代地质填图理论与方法的新探索  

An exploration to the theory and methodology of Late Cenozoic geological mapping

作　　者：赵希涛[1] 胡道功[2] 吴中海[2] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]中国地质科学院地质力学研究所,北京100081

出　　处：《地质通报》2009年第10期1419-1429,共11页Geological Bulletin of China

基　　金：中国地质调查局<开展现代地质填图新技术新方法的研究与示范>项目(编号:1212010711510)资助

摘　　要：在评述中国现有地质填图(主要是中比例尺地质图)的历史、现状和问题的基础上,根据晚新生代地层的特点,以及笔者长期从事地貌、第四纪地质研究工作与填图实践积累的经验,以青藏高原及其邻区为例,提出了提高中国大比例尺地质图填图水平和加快填图工作进度的几点建议。认为认识晚新生代地层的基本特征是提高地质填图水平的基础;解译地形图和遥感图是确定晚新生代地层成因类型与分布范围的重要手段;要重视相对高度在划分晚新生代地层中的重要作用,建立填图单位的地层层序系统;强调同位素年龄测定与地层顺序判定之间的辩证关系:皇冠与皇冠上的宝石;加强青藏高原隆升、环境变迁研究与晚新生代地质填图的联系方能使二者相辅相成、相得益彰。In this paper we first reviewed the history, present situation, and problems of China′s geological mapping （mainly medium-scale geological mapping） and then on the basis of characteristics of Late Cenozoic strata and our experience long accumulated in the study of geomorphology and Quaternary geology and in the mapping practice, we proposed several suggestions on enhancing the quality of and quickening the pace of large-scale geological mapping which is being and will be performed in the Qinghai-Tibet Plateau and its adjacent areas. We believe that recognition of the basic characteristics of Late Cenozoic strata is a base of enhancing the mapping quality; interpretation of topographic maps and remote sensing images are important means to determine the genetic type and distribution of Late Cenozoic strata. In order to establish the sequence of mapping units, attention should be paid to the important role that relative height plays in dividing of Late Cenozoic strata. Moreover, the dialectical relation between the isotopic dating and the stratigraphic sequence identifying should be stressed： it is like the relation between the imperial crown and jewels on it. We believe that only by strengthening the communication between the study of Qinghai-Tibet Plateau uplifting and Late Cenozoic strata mapping could make their mutual support and improvement possible.

关 键 词：晚新生代地层 填图理论 填图方法 

分 类 号：P534.6[天文地球—古生物学与地层学] P623[天文地球—地质学]