期刊
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
卷 6, 期 -, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2004GC000840
关键词
angular dependence; IZZI; paleointensity; partial thermoremanence (pTRM); pTRM tail; geomagnetism and paleomagnetism : paleointensity; geomagnetism and paleomagnetism : rock and mineral magnetism; geomagnetism and paleomagnetism : instruments and techniques
A new paleointensity determination protocol (the IZZI method) was recently proposed. The IZZI technique combines the Aitken (in-field, zero-field; IZ) and Coe (zero-field, in-field; ZI) methods. The IZZI protocol of paleointensity method was experimentally tested, showing a strong angular dependence resulting from the undemagnetized portions of partial thermoremanent magnetization (pTRM) tails. The IZZI method is better than the conventional techniques (Aitken, Coe, and Thellier) in three respects: (1) it can easily detect the angular dependence; (2) it provides a quantitative estimate for the consistency of the outcome between IZ and ZI step; and (3) it is quicker because the extra pTRM tail check step is unnecessary.
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