What do the HIRM and S-ratio really measure in environmental magnetism ?

@inproceedings{Liu2007WhatDT,
  title={What do the HIRM and S-ratio really measure in environmental magnetism ?},
  author={Qingsong Liu and Andrew P. Roberts},
  year={2007}
}
[1] The ‘‘hard’’ isothermal remanent magnetization (HIRM) and the S-ratio are widely used in environmental magnetism to quantify the absolute and relative concentrations, respectively, of antiferromagnetic minerals (hematite and goethite) in mineral mixtures. We demonstrate that synthetic Al-substituted hematite and goethite exhibit a wide range of coercivities, which significantly influences the HIRM and S-ratio. These parameters are therefore not necessarily straightforward indicators of the… CONTINUE READING
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