考古标本岩石磁性的初步研究  

PRELIMINARY ROCK MAGNETIC STUDY OFARCHAEOMAGNETIC SAMPLES

作　　者：黄晓葛[1] 

机构地区：[1]中国科学院地球物理研究所,北京100101

出　　处：《地球物理学报》1999年第5期660-668,共9页Chinese Journal of Geophysics

摘　　要：讨论了考古标本中所含矿物的磁学性质与古代地球磁场强度测定数据可靠性之间的关系，进行了岩石磁学实验，包括高温、低温磁化率测定、居里温度测定、磁滞回线各参数的测定等．结果表明，文中所用各类标本（陶片、砖、烧土等）的主要载磁矿物为磁铁矿，采用这些标本用Ｔｈｅｌｌｉｅｒ方法进行逐步热退磁实验所测定的古强度数据较为可靠．Author telated the mineral magnetic properties of some archeological samples tothe quality of the paleointensity data that they produce. Therefore, the dineral magneticproperties of the samples (potsherds, bricks, baked clays ets.) were investigated usingseveral techniques, including suscephbility variations from low temperature (about- 2000 ) tO room temperature, Curie temperature, hysteresis measurements and so on.The results show: the magnetite was identified as the predominant camer ofmagnehzation in the samples; those samples can produce high-quality paleointensitydata obtained by Thellier method of stepwise thermal demagnehzation.

关 键 词：磁化率 居里温度 古地磁数据 磁滞回收 岩石磁性 

分 类 号：P318.4[天文地球—固体地球物理学]