Full text loading...
-
The Use of 3D Approach for EMS-IP Technology Data Processing in Search of Kimberlite Pipes
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface Geoscience 2016 - First Conference on Geophysics for Mineral Exploration and Mining, Sep 2016, Volume 2016, p.1 - 5
Abstract
During the search of kimberlite pipes at the Anabar Shield (Yakutia, Russia) a three-dimensional (3D) inversion of nonstationary electromagnetic fields was used. Registration and processing of data were performed by an electromagnetic sounding and induced polarization (EMS-IP) technology, which is based on the calculation of normalized transient processes from 10 mcs to 125 ms. It is shown that 3D modeling together with EMS-IP technology may be used to separate such objects as diatreme (characterized by increased polarizability and deep lower boundary) from magnetic anomalies coincident with conduction abnormalities, but not related with non-indigenous objects such karst cavities, sulfides in sediments, etc. The methodological works were carried out in the search of kimberlite pipes in the kimberlite fields of Kuonapskaya group and Kelimyar area (Olenek area) in Bulun district of Anabar Shield (Yakutia, Russia).