TESTING THE INDEPENDENCE LAW OF PARTIAL ARMS: IMPLICATIONS FOR PALEOINTENSITY DETERMINATION
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dc.contributor.author | Yu Y. | |
dc.contributor.author | Dunlop D.J. | |
dc.contributor.author | Ozdemir O. | |
dc.date.accessioned | 2021-12-23T04:03:27Z | |
dc.date.available | 2021-12-23T04:03:27Z | |
dc.date.issued | 2003 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=1456760 | |
dc.identifier.citation | Earth and Planetary Science Letters, 2003, 208, 1-2, 27-39 | |
dc.identifier.issn | 0012-821X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/33756 | |
dc.description.abstract | The independence of partial anhysteretic remanent magnetizations (pARMs) was tested by alternating field demagnetizing orthogonal pARMs whose blocking field intervals do not overlap with each other. Experimentally the two pARMs demagnetized independently for single-domain grains but for multidomain and pseudo-single-domain grains, a superimposed remanence significantly affected the demagnetization of the pre-existing remanence. Experimentally and in numerical simulations, when a total anhysteretic remanent magnetization (simulating primary remanence in a field Ha) was orthogonally overprinted by pARM (simulating remagnetization in Hb), estimation of the intensity of Hb was relatively successful but the intensity of Ha was always underestimated. Conversely, the direction of Ha was preserved but the direction of Hb was spurious. These striking results are caused by the violation of the pARM independence law, implying that the conventional sample rejection criteria in pseudo-Thellier paleointensity determination require modification. | |
dc.subject | PARTIAL ANHYSTERETIC REMANENCE | |
dc.subject | INDEPENDENCE LAW | |
dc.subject | PSEUDO-THELLIER ANALYSIS | |
dc.subject | PALEOINTENSITY | |
dc.title | TESTING THE INDEPENDENCE LAW OF PARTIAL ARMS: IMPLICATIONS FOR PALEOINTENSITY DETERMINATION | |
dc.type | Статья |
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