Three-dimensional Geological Structure Characteristics Of Longchang-Qingchengzi-Liujiahe Area,Eastern Liaoning

With the deepening of geological survey and mineral geological survey,near-surface resources have been fully explored and developed,and underground deep resources have great potential,the use of advanced and effective means and three-dimensional geological modeling technology,so that the depth of a certain depth of the ground(3 ~ 5km in shallow)within the main geological structure and material composition of transparency.Understanding the three-dimensional geological features can deepen the understanding of underground geological structure,material composition and metallogenic regularity,and provide reference for deeper geological information.Based on the 1: 50000 regional geological data,1: 100,000 gravity data and 1: 100,000 aeromagnetic data in Liaodong area,this paper has carried out Longchang-Qing Chengzi-Liujiahe area of the deep geological structure of the study,for geological survey and mineral resources evaluation to provide more useful information,and made some new understanding and achievements:(1)Based on the study of regional geology and geophysics,combined with the measured high-precision gravity and magnetic profile data and MT profile data,the three-dimensional geological conditions of Longchang-Qingchengzi-Liujiahe area were revealed,and the sub-geological modeling method was used to establish The study of the basic control of the three-dimensional model.(2)The basement of the Liaoji rift has undergone a complicated evolutionary process.The structure and composition of the basement have been subjected to the strong transformation of the later tectonic action.The magmatic invasion of the Indosinian-Yanshanian period has largely changed the Liao The original internal structure of the rift,resulting in the Liaohe group was fragmented in the Liaoji tectonic belt.(3)Based on the results of gravity and magnetic inversion and gravity anomaly map,the deep extension of concealed rock mass in Qingchengzi area is predicted,which provides a scientific basis for deep prospecting in Qingchengzi area.(4)The influence of the fold structure and the fault structure on the internal structure of the Lian Shan Guan area was studied by the magneto-magnetic anomaly map and the gravity and magnetic inversion results of the Yanshan Guan rock mass line.(5)The three-dimensional geological model of the study area is established to realize the three-dimensional display of three-dimensional geological features.