|
|
|
| SOME PROBLEMS CONCERNING THE MEASUREMENT OF THE MAGNETIC PROPERTIES OF ROCK SPECIMENS WITH PROTON MAGNETOMETER |
| FAN Jin-sheng, ZHANG Yun-ming, GUO Wen-bo, WANG Xiao-yan |
| Geophysical and Geochemical Exploration Corporation, Northwest Bureau of Geological Exploration for Nonferrous Metals, Xi'an 710068, China |
|
|
|
|
Abstract Determination and calculation of magnetic parameters of rocks and minerals are faced with some problems such as ambiguous location determination, incorrect units of T0, ID confusion of specimen surface and negative magnetic susceptibility. On the basis of previous studies and starting with determination of Gauss position using mechanical magnetometer and formula derivation, this paper first analyzed the difference in principles between proton-type magnetometer and mechanical magnetometer, and then clearly explained Gauss first position, Gauss second position, the number of specimens surface, the order determination and unit of geomagnetic field. The cause of negative magnetic values were also analyzed and the measures for improvement were put forward. The results obtained can be of some help to the determination and calculation of magnetic parameters of rocks and minerals.
|
|
Received: 06 September 2011
Published: 10 April 2012
|
|
|
|
|
|
|
|
|
