摘要
简要介绍了边界单元法的计算原理,以直立圆柱、圆台、蘑菇状模型模拟不同形态的金伯利岩体,用边界单元法对上述模型的中梯装置ρ_3异常进行了正演计算。着重对正演计算结果进行分析,总结出不同条件下ρ_3曲线的性态特征,所得规律有利于进一步改善中梯装置电阻率法在勘查金伯利岩中的应用效果。
This paper presents the calculation principle of boundary element method and the modeling of different forms of kimberlite bodies after vertical cylinder, truncated cone and mushroom-shaped models, and demonstrates the direct calcultion of ρ, anomaly with boundary element method. This paper makes a special effort to analyse the direct calculation results and summarises morphological characteristics of ρ, curves under different conditions. This study will improve the effectiveness of resistivity method with the central gradient device in prospecting kimberlite.
出处
《地质科技情报》
CAS
CSCD
北大核心
1993年第A06期31-39,共9页
Geological Science and Technology Information
关键词
金伯利岩
中梯装置
岩体
边界远
kimberlite, boundary element method, model, central gradientdevice, resistivity method, apparent resistivity
