Analysis of isothermal remanent magnetization acquisition curves using the expectation-maximization algorithm

Details Analysis of isothermal remanent magnetization acquisition curves using the expectation-maximization algorithm Analysis of isothermal remanent magnetization acquisition curves using the expectation-maximization algorithm

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002geoji.148...58h&link_type=abstract

Geophysical Journal International, Volume 148, Issue 1, pp. 58-64.

Astronomy and Astrophysics

Astronomy

30

Coercivity, Irm Acquisition, Remanent Magnetization, Rock Magnetism

Scientific paper

The acquisition of isothermal remanent magnetization (IRM) curves through the application of stepwise-increasing uniaxial fields to a rock-magnetic sample provides an important non-destructive tool for the investigation of coercivity spectra (Dunlop & Özdemir 1997). We show that, through the use of an automated procedure based on the expectation-maximization algorithm (Dempster et al . 1977), both saturated and non-saturated IRM acquisition curves can be effectively modelled into their individual coercivity contributions.

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