摘要
天津1:50000黄庄公社幅(J50E004015)地质图在充分收集利用已有地质资料的基础上,根据行业规范要求,采用数字填图系统进行地质填图及数据库建设。数据库包含基本要素、综合要素、对象要素和独立要素等4个数据集,共计23种数据类型,数据量为43.8 MB,其中地质体面实体数据96个、地质(界)线数据320条、摄像(照片)数据85个、同位素测年数据9个、钻孔数据10个,沉积(火山)岩石地层单位数据13个。地质图总结了浅表沉积物地貌成因类型及其垂向地质结构、上新世晚期以来的地层结构特征及岩相古地理演化、基岩地质构造、环境工程地质问题,同时探索了沿海低平原覆盖区地质调查工作方法和地质图的创新图面表达方式,为覆盖区区域地质调查起到了示范作用。本数据库可以为地质环境保护,自然资源管理,水文、工程、环境地质调查提供详实的基础地质资料,能够支撑国家重要经济区可持续发展、重大工程建设与地质环境保障、城市规划和生态环境保护。
1:50000 geologic map of the Huangzhuang map-sheet(J50E004015),Tianjin was mapped by employing the Digital Geological Survey System(DGSS),and consequently a database was built by fully collecting and making use of existing geological data,as well as following industrial specifications.The database includes four datasets,i.e.a basic element,comprehensive element,object element and independent element,in total 23 different categories of data types,accumulating to a data size of 43.8 MB.Among them,there are 96 geological entities,320 geological(boundaries)lines and 85 videos(photos),as well as nine samples of isotope dating,10 boreholes and 13 sedimentary(volcanic)lithostratigraphic units.In the geologic map,the genetic type of the superficial deposit landform and its vertical geological structure,stratigraphic structure feature and lithofacies palaeogeographic evolution since the Late Pliocene,as well as the bedrock geological structure,and environmental engineering geological problems were all summarized;the methodology for the geological survey and innovative map presentation of the geologic map in the low coastal plain coverage area was explored simultaneously,which all play an exemplary role for regional geological survey in the coverage area.The database can provide detailed and basic geological data for geological environmental protection,natural resource management,in addition to hydrological,engineering and environmental geological surveying,thus supporting a sustainable development of an important national economic zone,major engineering construction,geological and ecological environmental protection,and urban planning.
作者
黄猛
陈星
王莉
马青云
HUANG Meng;CHEN Xing;WANG Li;MA Qingyun(Tianjin Institute of Geological Survey,Tianjin 300191,China)
出处
《中国地质》
CAS
CSCD
北大核心
2020年第S01期99-129,共31页
Geology in China
基金
中国地质调查局地质调查项目“燕山-太行成矿带丰宁和天镇地区地质矿产调查”(项目编号:DD20160042)资助
关键词
天津
黄庄公社幅
1
数据库
低平原覆盖区
第四纪
地质调查工程
Tianjin
Huangzhuang Map Sheet
1
database
low plain coverage
Quaternary
geological survey engineering
