地质力学学报2016，Vol.22Issue(4)：868-881,14.
河流沉积分析在浅覆盖第四纪填图中的应用——以内蒙古河套地区1∶50000填图试点为例
APPLICATION OF FLUVIAL DEPOSITIONAL SYSTEM ANALYSIS DURING THE QUATERNARY GEOLOGICAL SURVEY IN THE SHALLOW COVERED AREA: A CASE STUDY OF 1∶50000 GEOLOGICAL MAPPING IN THE HETAO REGION OF INNER MONGOLIA
摘要
Abstract
With the conduction of the national large-scale (1 ∶ 50000) geological survey in special geological and geomorphic areas,traditional Quaternary mapping methods could not meet the needs of modern geological mapping in the coverage areas.Therefore,"What can we do" and " How can we do" become the key issues for the geological workers during the Quaternary geological mapping.In order to test even find some new geological mapping methods,we select typical coverage areaHetao plain as our study area.Under the guidance of theories in fluvial sedimentlogy,combined with drilling column,we build the fluvial sedimentary system since the Holocene.Regard these subfacies as the sedimentary frame for the geological sketch frame,we recognize fluvial subfacies,embankments subfacies,and flood plain subfacies.The principle of step by step approximation was applied to determine the geological boundary.Besides that,three periods of fluvial deposits and corresponding sedimentary systems were recognized.Therefore,the problem of lacking geological units during the Quaternary geological survey in covered area might be solved,and a set of feasible scheme could be provided.关键词
覆盖区/填图方法/河流系统/沉积相分析/河套平原Key words
shallow covered area/mapping methods/fluvial system/sedimentary facies analyzation/Hetao plain分类
天文与地球科学引用本文复制引用
刘晓彤,张绪教,叶培盛,贾丽云,蔡茂堂,何泽新,李成路,吴泽群,周青硕..河流沉积分析在浅覆盖第四纪填图中的应用——以内蒙古河套地区1∶50000填图试点为例[J].地质力学学报,2016,22(4):868-881,14.基金项目
中国地质调查局地质调查项目“特殊地质地貌区填图试点”(DD20160060) （DD20160060）
中国地质调查局项目“内蒙古1∶5万呼勒斯太苏木(K48E017024)等四幅填图试点”(12120114042101) （K48E017024）
