Studies on rock magnetic and paleointensity of some archaeological artifacts from Tamilnadu,India  

作　　者：Chellachamy MANOHARAN Kasinathan VEERAMUTHU Ramdoss VENKATACHALAPATHY Ramasamy ILANGO 

机构地区：[1]Department of Physics,Annamalai University,Annamalai Nagar 608002,Tamilnadu,India [2]Department of Physics,RKM Vivekananda College,Chennai 600004,Tamilnadu,India

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2008年第7期988-993,共6页浙江大学学报（英文版）A辑（应用物理与工程）

摘　　要：This study investigates the magnetic mineralogy and paleointensity values of a collection of archaeological artifacts(pottery) . The actual magnetic carriers and their domain states present in the archaeological pottery were obtained using the low field susceptibility,thermomagnetic curves and acquisition of isothermal remanence. The magnetic mineralogy of all the samples was dominated by ferrimagnetic mineral(magnetite/magnetite with low titanium content) ,which was suitable for paleointensity measurements. The geomagnetic paleointensity value obtained by subjecting them to modified Thellier and Thellier method,is found to be(48.81±0.15) μT.This study investigates the magnetic mineralogy and paleointensity values of a collection of archaeological artifacts （pottery）. The actual magnetic carriers and their domain states present in the archaeological pottery were obtained using the low field susceptibility, thermomagnetic curves and acquisition of isothermal remanence. The magnetic mineralogy of all the samples was dominated by ferrimagnetic mineral （magnetite/magnetite with low titanium content）, which was suitable for paleointensity measurements. The geomagnetic paleointensity value obtained by subjecting them to modified Thellier and Thellier method, is found to be （48.81±0.15） μT.

关 键 词：Magnetic susceptibility Archaeological pottery PALEOINTENSITY 

分 类 号：O441.2[理学—电磁学]