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古地磁学是借助于仪器测量岩石的天然剩余磁化强度和方向,来研究地质年代(或人类文明史期)的地球磁场的方向、强度及其演化规律的一门科学。由于它能定量地获得不同的地质年代的古地磁极位置与标本形成时期采样地点的古纬度所以古地磁学的研究成果在地层学、构造地质学、古地理学、古气候学、矿床学及第四纪地质学等方面解决某些问题发挥了积极的作用。
Paleomagnetism is a science that studies the direction, intensity and evolution of the Earth’s magnetic field in geological age (or human civilization) by means of measuring the natural residual magnetization and direction of rock. Because of its ability to quantitatively obtain paleomagnetic poles in different geological ages and paleosols at sampling sites during the formation of specimens, the achievements in paleomagnetism have been widely used in many fields such as stratigraphy, structural geology, palaeogeography, paleoclimate, mineralogy and Quaternary geology and other aspects of solving certain problems played a positive role.