Investigation of the magnetic characteristic of amorphous Fe40Ni40B20 and Fe6Co70Ni13Si7B4 foils by a magnetooptical method
Magnetic parameters, the local anisotropy field Hk, the effective field hl related to the correlation radius, and the coercive force Hc, are determined for free and contact surfaces by investigating the magnetization curves of amorphous Fe40Ni40B20 and Fe6Co70Ni13Si7B4 foils by a highly-sensitive method of measuring the magnetooptical phase.
With study on field geology,geochemistry and geomathematics for the Zhuanmiao borate deposit,it is concluded that the borate mineralization within the studied area underwent two epochs,i.e.sedimentation and metamorphic migmatizaiton,implying its sedimentary-metamorphic type of deposit. The ore bodies in general dip to west. The NNE-orientated faults in the ore field are reverse occurrence with dip angles less than 40°. Consequently,three large-sized concealed deposits were discovered within the lower walls of the faults,marking a breakthrough in the exploration for borate deposits in the area.