[PDF]    http://dx.doi.org/10.3952/lithjphys.49409

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 49, 479–485 (2009)

R. Venkatachalapathya, A. Loganathanb, N. Basavaiahc, and C. Manoharand
aC. A. S. in Marine Biology, Annamalai University, Parangipettai 608 502, India
E-mail: venkatr5@rediffmail.com
bFaculty of Engineering and Technology, Annamalai University, Annamalainagar 608 002, India
cIndian Institute of Geomagnetism, New Panvel, Navi Mumbai 410 218, India
dDepartment of Physics, Annamalai University, Annamalainagar 608 002, India

Received 23 August 2009; revised 21 November 2009; accepted 18 December 2009

This study investigates the magnetic mineralogy of a collection of archaeological potteries. Actual magnetic carriers and the domain states of the constituent magnetic fine particles have been obtained from the acquisition of isothermal remanence and low field susceptibility measurements. The magnetic mineralogy of all samples has been dominated by ferrimagnetic mineral (magnetite/magnetite with low titanium content) which is suitable for paleointensity measurement in determining the intensity of the ancient geomagnetic field.
Keywords: rock and mineral magnetism, archaeological pottery
PACS: 91.25.F-

R. Venkatachalapathya, A. Loganathanb, N. Basavaiahc, C. Manoharand
aAnamalai universiteto Jūrų biologijos aukštesniųjų studijų centras, Parangipettai, Indija
bAnamalai universiteto Inžinerijos ir technologijos fakultetas, Annamalainagar, Indija
cIndijos geomagnetizmo institutas, New Panvel, Navi Mumbai, Indija
dAnamalai universiteto Fizikos katedra, Annamalainagar, Indija

Magnetinės mineralogijos metodais tirtas archeologinių lipdinių šukių rinkinys. Išmatavus izoterminį nuovargį ir jutą silpname lauke, nustatyti tikrieji magnetizmo šaltiniai ir smulkių sudėtinių magnetinių dalelių domeninės būsenos. Visų bandinių magnetinėje mineralinėje sudėtyje dominavo ferimagnetinis mineralas (magnetitas ar magnetitas su nedidele titano priemaiša), tinkamas paleointensyvumui matuoti nustatant senovės geomagnetinio lauko intensyvumą.

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