Using Preisach Theory to Evaluate Chemical Remanent Magnetization and Its Behavior During Thellier‐Thellier‐Coe Paleointensity Experiments
نویسندگان
چکیده
The behavior of grain-growth chemical remanent magnetizations (gCRM) are investigated for different coercivity and magnetostatic-interaction-field distributions acquisition conditions using a thermally activated Preisach model assemblages interacting single-domain grains. A new growth-rate dependent equation was derived, from which it found that gCRM intensity is over 10% more sensitive to growth rate than previously modeled. We compare the results thermoremanences (TRM). gCRMs two times changes in distribution, whereas TRMs four magnetostatic interactions. Thellier-Thellier-Coe paleointensity protocol simulated space, were produce concave-up Arai plots with pTRM checks plot left positive partial-TRM tail increase This often leads failure selection criteria, but high-temperature segments can pass criteria weakly gCRMs; these estimates underestimate field by up 66%.
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ژورنال
عنوان ژورنال: Journal Of Geophysical Research: Solid Earth
سال: 2023
ISSN: ['2169-9356', '2169-9313']
DOI: https://doi.org/10.1029/2022jb025858