The examples in abroad and home indicate that the viscous remanent magnetization is a convenient tool for orientation determination of drilled cores . it can be used on samples for which the geological age is not known . the only information required is well position , the direction and magnitude of well deviation and the " right way up " for the core sample 結(jié)合國內(nèi)外的研究實(shí)例和自己的研究實(shí)例,對利用粘滯剩磁確定巖心方向進(jìn)行了較深入的研究,進(jìn)一步證明了粘滯剩磁巖心定向是一種不用考慮復(fù)雜的地殼運(yùn)動(dòng)和地質(zhì)年代,只需要井位的井斜數(shù)據(jù)和取心方向標(biāo)記的簡單、方便值得推崇的方法。
Viscous remanent magnetization (Abbreviated VRM), also known as viscous magnetization, is remanence that is acquired by ferromagnetic materials by sitting in a magnetic field for some time. The natural remanent magnetization of an igneous rock can be altered by this process.