【作者】 魏青云； 李东节；

【Author】 Q.Y.wei D.J.Li (Institute of Geophysics,Chinese Academy of Sciences)

【机构】 中国科学院地球物理研究所；

【摘要】 在磁场中被夯击的粘土,无论是湿土或干粉,所获得的剩磁方向都与作用磁场的方向平行,而与夯击方向无关.在作用场强度小于80μT的范围内,这种剩磁的强度与作用场强度为线性比例关系,之后,随作用场强的增大而呈阶梯式增长.在作用场强超过200μT时磁化强度的增长速度约为弱场时的三倍,直至2000μT尚未达到饱和.更多还原

【Abstract】 The direction ofremanent magnetization acquired by a clay,either wet or dry,tamped in a magnetic field,is parallel to the field direction regardless of tamping direction.The intensity of this remanent magnetization is linearly proportional to the strength of the applied field up to about 80μT and then it increases with field strength in an unusual stepwise fashion.For fields stronger than 200μT the rate of rise is about three times greater than that in weaker fields and there is no saturation until 2000μT.更多还原