建立东北地区1:250万地质图数据库几点新突破  

Some new breakthroughs in establishing database of geological map of 1∶2 500 000 of Northeast China

作　　者：张艳玲[1] 石玉丽[1] 王凯红[1] 李海玉[1] 胡红霞[1] 

机构地区：[1]吉林省区域地质矿产调查所,吉林长春130022

出　　处：《吉林地质》2004年第4期144-149,共6页Jilin Geology

摘　　要：在地质内容方面:按照第三届全国地层会议通过的《中国地质年代表》,对东北地区年代地层、岩石地层进行了归纳和总结,订正了地层序列。以年代加岩性表示岩浆岩,并表示了具有特殊意义的晶洞花岗岩体和蓝闪片岩带。在编图方法上:以中华人民共和国1∶50万数字地质图数据库的资料为基础,充分利用GIS技术,建立了东北地区1∶250万地质图空间数据库和属性数据库,使编图、成图、建库全程计算机化。From the geological contents, according to 《Geologic Time Scale of China》adopted by the third national stratigraphic conference, we made chronostratigraphic classification, lithostratigraphic classification of Notheast China, and emended its stratigraphic sequence. We showed magmatic rock by geologic time and lithologic characters, and showed special miarolites and glaucophane-schist belt. From the methods of compiling map, in the working, on the basis of the geological map database of 1∶500 000 of PRC, fully utilized the technology of GIS, established the space database and attribute database of 1∶2 500 000 geological map of Northeast China, and made a whole computerized processing of compiling map, accomplishing map and establishing database.

关 键 词：地质图 编图 花岗岩体 地层序列 年代地层 岩石地层 地质年代表 东北地区 中国 新突破 

分 类 号：P534[天文地球—古生物学与地层学] P208[天文地球—地质学]