摘要
将起伏地形上测量的重力异常和磁异常,延拓至平均水平面;对平面上的场进行不同深度层源的切割分离;再将各层的场向下延拓至相应的深度,并反演出该深度层的密度和磁化强度结构。以此得到的密度和磁化强度,反映该深度层密度和磁性的近似分布,称为视密度和视磁性反演。本方法反演速度很快,在主频1.73 GHz的微机上,完成71×81数据点反演的计算时间为10s。这里以新疆色尔特能地区的实例说明这种方法的反演效果。
So called the inversion of apparent density and apparent susceptibility is an inversion technique, in which gravity and magnetic fields measured on an undulated terrain are first reduced to a mean horizontal plane by continuation; the potential fields so obtained on the plane are then separated by a cutting method into several parts corresponding to strata of different depth; by the way of downward continuation, a part of the fields are reduced to a plane corresponding to its depth; inversion is finally con...
出处
《物探化探计算技术》
CAS
CSCD
2007年第S1期12-16,15,共6页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
重力异常
磁力异常
三维反演
视密度成像
视磁性成像
快速反演
gravity anomaly
magnetic anomaly
3D inversion
apparent density imaging
apparent susceptibility imaging
fast inversion
