摘要
在浅覆盖区,常规填图方法填制的地质图,由于信息量少导致整体质量不高。利用勘查技术方法来提高覆盖区地质填图的效率、质量和地质研究水平,具有重要的现实意义。航磁方法是其中的一种重要方法,但航磁测量获取的数据是磁异常迭加的综合反应,而区域地质填图仅描述地表附近的地质情况,直接利用航磁数据辅助地质填图是不合理的。因此,基于插值切割、数理统计和灰色关联度分析等方法,提出了一种剔除深部影响,利用浅层岩石磁性分布规律和磁性差异来识别浅覆盖区地质体的新思路。经选用黑龙江省塔河地区数据进行验证,识别效果明显。
In shallow coverage areas, the geologic map plotted with the conventional method has a characteristic that the credibility is low, the information is lacking and the overall quality is poor. So that using exploration techniques to enhance the efficiency, quality and level of geological research of the geologic mapping in coverage areas is of great realistic significance. Although the aeromagnetic method is one of the important methods, the aeromagnetic survey data describe the superposition of the magnetic anomalies over the courie surface, while the regional geologic mapping only describes the surface geologic information. So that it is obviously unreasonable to use the aeromagnetic survey data to aid geologic mapping directly. In this paper, a new method that identifying geologic body in shallow coverage areas with rock magnetic distribution is studied based on interpolating cut method, mathematical statistics and gray relationship analysis. The efficiency of recognition is verified with the data of Tahe of area.
出处
《物探化探计算技术》
CAS
CSCD
2008年第2期125-127,共3页
Computing Techniques For Geophysical and Geochemical Exploration
基金
国土资源大调查项目(2002010002106
200320120005)
十一五国家科技支撑计划项目(2006BAB01A02)
关键词
浅覆盖区
航磁数据
地质填图
插值切割法
塔河
shallow coverage areas
aeromagnetic data
geologic mapping
interpolating cut method
gray relationship analysis
Tahe
