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dc.contributor.authorRoberts, APen
dc.contributor.authorHu, Pen
dc.contributor.authorHarrison, Richarden
dc.contributor.authorHeslop, Den
dc.contributor.authorMuxworthy, ARen
dc.contributor.authorOda, Hen
dc.contributor.authorSato, Ten
dc.contributor.authorTauxe, Len
dc.contributor.authorZhao, Xen
dc.date.accessioned2019-04-16T23:30:22Z
dc.date.available2019-04-16T23:30:22Z
dc.date.issued2019-06-01en
dc.identifier.issn2169-9313
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/291710
dc.description.abstractThe Day diagram is used extensively in rock magnetism for domain state diagnosis. It has been shown recently to be fundamentally ambiguous for ten sets of reasons. This ambiguity highlights the urgency for adopting suitable alternative approaches to identify the domain state of magnetic mineral components in rock magnetic studies. We evaluate ten potential alternative approaches here and conclude that four have value for identifying data trends, but, like the Day diagram, they are affected by use of bulk parameters that compromise domain state diagnosis in complex samples. Three approaches based on remanence curve and hysteresis loop unmixing, when “supervised” by independent data to avoid non-uniqueness of solutions provide valuable component-specific information that can be linked by inference to domain state. Three further approaches based on first-order reversal curve (FORC) diagrams provide direct domain state diagnosis with varying effectiveness. Environmentally important high coercivity hematite and goethite are represented with variable effectiveness in the evaluated candidate approaches. These minerals occur predominantly in non-interacting single domain particle assemblages in paleomagnetic contexts, so domain state diagnosis is more critical for ferrimagnetic minerals. Treating the high-coercivity component separately following normal rock magnetic procedures allows focus on the more vexing problem of diagnosing domain state in ferrimagnetic mineral assemblages. We suggest a move away from non-diagnostic methods based on bulk parameters and adoption of approaches that provide unambiguous component-specific domain state identification, among which various FORC-based approaches provide diagnostic information.
dc.description.sponsorshipEuropean Research Council (ERC) Australian Research Council (ARC)
dc.publisherWiley-Blackwell
dc.rightsAll rights reserved
dc.rights.uri
dc.titleDomain State Diagnosis in Rock Magnetism: Evaluation of Potential Alternatives to the Day Diagramen
dc.typeArticle
prism.endingPage5314
prism.issueIdentifier6en
prism.publicationDate2019en
prism.publicationNameJournal of Geophysical Research: Solid Earthen
prism.startingPage5286
prism.volume124en
dc.identifier.doi10.17863/CAM.38870
dcterms.dateAccepted2019-04-09en
rioxxterms.versionofrecord10.1029/2018JB017049en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-06-01en
dc.contributor.orcidRoberts, AP [0000-0003-0566-8117]
dc.contributor.orcidHu, P [0000-0003-2066-6355]
dc.contributor.orcidHarrison, Richard [0000-0003-3469-762X]
dc.contributor.orcidHeslop, D [0000-0001-8245-0555]
dc.contributor.orcidMuxworthy, AR [0000-0002-3070-4477]
dc.contributor.orcidOda, H [0000-0001-7142-9208]
dc.contributor.orcidTauxe, L [0000-0002-4837-8200]
dc.contributor.orcidZhao, X [0000-0002-1168-3439]
dc.identifier.eissn2169-9356
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Research Council (320750)
cam.orpheus.successThu Jan 30 10:46:23 GMT 2020 - Embargo updated*
rioxxterms.freetoread.startdate2019-12-01


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