Gravity And Magnetic Analysis Of Military Geological Survey Of The Coastal Zone In Liaodong Region

In the history of human wars,there are too many successful battles due to flexible combination of geological knowledge and reasonable utilization of geological conditions.Therefore,the battlefield geological environment affects the success or failure of the war to some extent.In order to guarantee the territorial security of our country,it is very necessary to carry out military geological survey.The coastal zone is the gateway of a country,and China has a total length of more than 18,000 kilometers of coastline,so the military geological survey of the coastal zone is the most important part of the military geological survey.At present,the military geological survey of the coastal zone in China has just started and is not mature,so it is necessary to explore the ideas,contents and methods of the survey.The military geological survey of the coastal zone is based on military theory,national defense construction theory and basic geology theory,by means of geological survey,technology and method,to investigate the material composition,internal structure,physical and chemical properties and surface characteristics of crustal lithosphere and earth surface coverings in coastal zones,and the relationship of various geological processes in the history of earth development to the battlefield and its operational activities,in order to obtain the geological information related to military applications,and combined with the obtained information to analyze and evaluate the geological environment of the battlefield.Liaodong region is not only the coastal defense barrier of the capital Beijing,but also the front position of landing and anti-landing operations,and its strategic position is very important.In order to find geological methods for military geological survey,we collect geological and geophysical data in the study area,and adopt several gravity and magnetic data processing and inversion methods for geological interpretation.Finally,we analyze and evaluate the geological environment of the battlefield in the study area.In this paper,according to the collected data,the characteristics of topography and sedimentary basement in the study area are clarified.We use the gravity interface inversion to study the deep crustal structure in the research area.Based on the use of methods of boundary identification,we delineate the tectonic units,deep faults and the range of igneous rocks.The joint inversion results of gravity and magnetic data in profiles verify the delineation of igneous rocks.Finally,according to the results of the treatment and interpretation of gravity and magnetic anomalies,we analyze and evaluate the geological environment of the battlefield in the study area.