摘要
对自然电位勘探中的直立脉状矿体进行了概率成像研究。首先把剖面上偶极层的线分布产生的场看作是偶极层的边缘——旋度源的点分布产生的场;然后给出旋度源的扫描函数,用概率成像方法对旋度源进行成像。这种方法不是直接对矿体成像,而是对矿体的边缘成像,可通过更加准确的矿体的边缘分布判断矿体的分布。最后通过几个理论算例和1个实际勘探算例,证明这种改进是可行的。
Probability tomography about vertical vein orebody is studied. Firstly, SP supposed to be generated by point curl source which is the border of dipole layer rather than the line dipole layer in section view. then, curl source＇s scanning function is given, and image is retrieved by probability tomography approach. Image concerns with the border of vein orebody but not the orebody itself, so orebody can be deduced by accurater distributing of border. Finally, this mend is proved practicable by several theoretic models and one practical model.
出处
《物探与化探》
CAS
CSCD
2007年第4期344-346,350,共4页
Geophysical and Geochemical Exploration
关键词
概率成像
旋度源
互相关积分
自然电场
probability tomography
curl source
cross-orrelation integral
natural electric field
