Based on geological data and physical property data as well as processing of gravity and air-borne magnetic data, the authors, constrained by some geological information, has conducted the gravity and magnetic man-machine forward modeling in the Alongshan area. The purpose of the study is to formulate the models of underground geological bodies. The results obtained clearly show the distribution characteristics of the underground geological bodies. On such a basis, underground lithologic characteristics and structural distribution regularity can be inferred, which can serve as reference materials for regional geological mapping.
［1］ 中国地质科学研究院.中华人民共和国地质图集［M］.北京:地质出版社, 1973.
［2］ Plouff.D.Gravity and magnetic fields of polygonal prisms and application to magnetic terrain corrections［J］.Geophysics, 1976, 41:727-741.
［3］ Talwani M.Computation with the help of a digital computer of magnetic anomalies caused by bodies of arbitrary shape［J］.Geophysics, 1965, l30:797-817.
［4］ 谭海平.二维和三维人机交互模拟方法研究及其应用.长春:吉林大学地球探测与信息技术学院, 1995.
［5］ Talwani M, Worzel J L, Landisman M.Rapid gravity computation for two-dimensional bodies with application to the Mendocino submarine fracture Zone［J］.Journal of geophysical Research, 1959, 64:49-59.
