覆盖区区域地质调查(1:50 000)思路、原则与方法

随着生态文明建设成为新时期国家目标，区域地质调查必须为我国能源资源安全保障和国土空间规划与生态文明建设服务.目前，我国区域地质调查工作已经向覆盖区为主的平原、盆地、草原、荒漠等地区拓展，但现行的地质填图技术方法体系，难以满足现今覆盖区地质填图工作的需要，亟待探索形成新的地质填图技术方法体系，扩大地质调查成果的服务领域.中国地质调查局于2014年设立了“特殊地质地貌区填图试点”项目，探索总结覆盖区区域地质填图技术方法.经过努力，形成了以“覆盖区区域地质调查技术要求（1:50 000）”为核心的覆盖区填图技术方法体系.试点项目初步确立了中国东部晚新生代以来构造-沉积演化的基本格架，揭示了晚更新世以来中国中东部沉积过程与生态环境演化及人类文明发展的制约关系.该方法体系的建立，对引领我国区域地质调查服务国家生态文明建设和生态环境保护具有重要意义.新的填图方法体系明确提出聚焦国家生态文明建设与生态环境保护，以地球系统科学为覆盖区区域地质调查的理论基础，实行需求驱动、问题导向、目标考核，努力解决调查区重大基础地质问题、重大资源与生态环境问题.调查的技术路线是地表地质调查与多种现代地球探测技术、信息技术等高度融合，并强调预研究与设计阶段的重要性.同时规定不平均使用工作量，取消填图主要实物工作量的量化指标规定；创新成果表达方式，明确地质填图服务多种社会需求，倡导填图首席科学家负责制，建立区调填图诚信体系. 

Thoughts,Principles and Methods of Regional Geological Survey in Covered Area (1:50 000)

As the construction of ecological civilization has become the national goal,the regional geological survey must serve the security of energy and resources,the planning of land space,and the construction of ecological civilization. Presently,the regional geological survey has expanded to covered areas in China,such as plain,basin,grassland,desert,and so on. However,the current geological mapping technology and method system cannot meet the needs of the current work. It is urgent to explore new patterns and mapping technology and method systems and expand the service field of achievement. In 2014, China Geological Survey set up the "special geological and geomorphic area mapping pilot project",which explored and summarized the technology and method system of regional geological mapping in the covered area. Now,the mapping technology and method system of covered area with "technical method guide for regional geological survey in covered area (1:50 000)" as the core has formed. The framework of tectonic sedimentary evolution in eastern China since the Late Cenozoic has been preliminarily established,which reveals the constraints of the sedimentary process,the ecological environment evolution and the development of human civilization in eastern China since the Late Pleistocene. This technological system will be significant to lead the regional geological survey in the covered area,serve the national ecological civilization construction and ecological environment protection. The new mapping method system clearly puts forward to focus on national ecological civilization construction and ecological environment protection,take the earth system science as the theoretical basis of regional geological survey in the covered area,implement demand driven,problem-oriented and target assessment,and strive to solve the major basic geological issues,major resources and ecological environment issues in the survey area. The technical route is high integration of surface geological survey with various modern detection technologies and information technologies,and the importance of pre-research and design stage is emphasized. At the same time,it is necessary to stipulate the uneven workload,cancel the quantitative indicators of the main mapping work,innovate the expression of achievements,make clear that geological mapping serves a variety of social needs,advocate the chief mapping scientist responsibility system,and establish a regional survey mapping integrity system.