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The effect of hydrostatic pressure up to 1.61 GPa on the Morin transition of hematite-bearing rocks: Implications for planetary crustal magnetization

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dc.contributor.author Bezaeva N.
dc.contributor.author Demory F.
dc.contributor.author Rochette P.
dc.contributor.author Sadykov R.
dc.contributor.author Gattacceca J.
dc.contributor.author Gabriel T.
dc.contributor.author Quesnel Y.
dc.date.accessioned 2018-09-18T20:28:15Z
dc.date.available 2018-09-18T20:28:15Z
dc.date.issued 2015
dc.identifier.issn 0094-8276
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/140228
dc.description.abstract © 2015. American Geophysical Union. All Rights Reserved. We present new experimental data on the dependence of the Morin transition temperature (TM) on hydrostatic pressure up to 1.61 GPa, obtained on a well-characterized multidomain hematite-bearing sample from a banded iron formation. We used a nonmagnetic high-pressure cell for pressure application and a Superconducting Quantum Interference Device magnetometer to measure the isothermal remanent magnetization (IRM) under pressure on warming from 243 K to room temperature (T0). IRM imparted at T0 under pressure in 270 mT magnetic field (IRM270mT) is not recovered after a cooling-warming cycle. Memory effect under pressure was quantified as IRM recovery decrease of 10%/GPa. TM, determined on warming, reaches T0 under hydrostatic pressure 1.38-1.61 GPa. The pressure dependence of TM up to 1.61 GPa is positive and essentially linear with a slope dTM/dP = (25 ± 2) K/GPa. This estimate is more precise than previous ones and allows quantifying the effect of a pressure wave on the upper crust magnetization, with special emphasis on Mars.
dc.relation.ispartofseries Geophysical Research Letters
dc.subject hematite-bearing rock
dc.subject hydrostatic pressure
dc.subject Martian magnetic anomalies
dc.subject Morin transition
dc.title The effect of hydrostatic pressure up to 1.61 GPa on the Morin transition of hematite-bearing rocks: Implications for planetary crustal magnetization
dc.type Article
dc.relation.ispartofseries-issue 23
dc.relation.ispartofseries-volume 42
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 10188
dc.source.id SCOPUS00948276-2015-42-23-SID84953635024


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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