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  • CONFERENCE PAPER
    Shah J, Muxworthy AR, Almeida T, Kovacs A, Russell SS, Genge M, Dunin-Borkowski REet al.,

    Electron Holography of Chondrule Dusty Olivine (poster)

    , Meteorites and Solar System formation workshop
  • JOURNAL ARTICLE
    Berndt T, Muxworthy AR, 2017,

    Dating Icelandic glacial floods using a new viscous remanent magnetization protocol

    , GEOLOGY, Vol: 45, Pages: 339-342, ISSN: 0091-7613
  • JOURNAL ARTICLE
    Berndt T, Ramalho RS, Valdez-Grijalva MA, Muxworthy ARet al., 2017,

    Paleomagnetic field reconstruction from mixtures of titanomagnetites

    , Earth and Planetary Science Letters, Vol: 465, Pages: 70-81, ISSN: 0012-821X

    Stepwise thermal demagnetization and alternating field (AF) demagnetization are commonly used in paleomagnetic studies to isolate remanent magnetic components of different origins. The magnetically hardest, i.e. highest unblocking temperature/peak field component is often interpreted as the primary magnetization and magnetically softer components as subsequent remagnetizations due to geological events posterior to the formation of the rock, such as reheating or formation of new magnetic minerals. The correct interpretation of the sequence of the geological events such as tectonic rotations from paleomagnetic data often relies on correctly attributing the observed magnetic directions to the remanence carriers and acquisition mechanisms. Using a numerical model to simulate remanence acquisition and stepwise thermal and AF demagnetization experiments, we show that the presence of mixtures of different magnetic minerals, such as magnetite and titanomagnetites of varying titanium-content can have very significant effects on Zijderveld plots. In thermal demagnetization experiments a spurious third component at intermediate temperatures or a continuous curvature may arise from an overlap of the primary remanence with a subsequent thermal or viscous remagnetization carried by small-grained iron-rich magnetite and large-grained titanium-rich titanomagnetite. AF demagnetization plots of magnetic mixtures are even more complex: primary and secondary remanences carried by different minerals may appear as either three or four components in Zijderveld plots. During alternating field demagnetization the highest coercivity component is not necessarily equivalent to the primary remanence and does not necessarily correspond to the highest temperature component in an analogous thermal demagnetization experiment, i.e., the primary remanence direction cannot be recovered. The effects are shown to be due to the different responsiveness of magnetite and titanomagnetites towards viscous or

  • BOOK CHAPTER
    Maidment S, Balikova D, Muxworthy AR, 2017,

    Magnetostratigraphy of the Morrison Formation, Utah

    , Terrestrial Depositional Systems Deciphering Complexities Through Multiple Stratigraphic Methods, Editors: Zeigler, Parker, Publisher: Elsevier, ISBN: 9780128032435

    Terrestrial Depositional Systems: Deciphering Complexities through Multiple Stratigraphic Methods is the first collection of contributed articles that not only introduces young geoscientists to biostratigraphy, chemostratigraphy, ...

  • CONFERENCE PAPER
    Abubakar R, Muxworthy AR, Sephton M, Fraser A, Watson J, Southern P, Heslop D, Paterson Get al., 2016,

    Mapping Petroleum Migration Pathways in Wessex Basin Using Magnetics and Seismic Mapping (poster)

    , Magnetic Interactions 2016
  • CONFERENCE PAPER
    Almeida T, Muxworthy AR, Kasama T, Williams W, Damsgaard C, Frandsen C, Pennycook T, Dunin-Borkowski Ret al., 2016,

    Effect of maghemization on the magnetic properties of non-stoichiometric pseudo-single-domain magnetite particles (poster)

    , Magnetic Interactions 2016
  • JOURNAL ARTICLE
    Almeida TP, Muxworthy AR, Kovacs A, Williams W, Brown PD, Dunin-Borkowski REet al., 2016,

    Direct visualization of the thermomagnetic behavior of pseudo-single-domain magnetite particles

    , SCIENCE ADVANCES, Vol: 2, ISSN: 2375-2548
  • JOURNAL ARTICLE
    Almeida TP, Muxworthy AR, Kovacs A, Williams W, Nagy L, Conbhui PO, Frandsen C, Supakulopas R, Dunin-Borkowski REet al., 2016,

    Direct observation of the thermal demagnetization of magnetic vortex structures in nonideal magnetite recorders

    , GEOPHYSICAL RESEARCH LETTERS, Vol: 43, Pages: 8426-8434, ISSN: 0094-8276
  • CONFERENCE PAPER
    Almeida TP, Muxworthy AR, Williams W, Kovacs A, Dunin-Borkowski Ret al., 2016,

    Direct visualization of CRM and TRM of pseudo-single-domain magnetite particles (invited)

    , Magnetic Interaction 2016
  • CONFERENCE PAPER
    Badejo, Muxworthy AR, Fraser A, 2016,

    Application of magnetic techniques to lateral hydrocarbon migration - Lower Tertiary reservoir systems, UK North Sea (poster)

    , Magnetic Interactions 2016
  • CONFERENCE PAPER
    Berndt T, Muxworthy AR, 2016,

    Magnetic dating of storm floods, jökulhlaups and tsunamis

    , EGU 2016
  • CONFERENCE PAPER
    Berndt T, Muxworthy AR, 2016,

    Viscous Remanent Magnetization Dating of Floods

    , Beijing Earth and Planetary Interior Symposium
  • JOURNAL ARTICLE
    Berndt T, Muxworthy AR, Fabian K, 2016,

    Does size matter? Statistical limits of paleomagnetic field reconstruction from small rock specimens

    , JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, Vol: 121, Pages: 15-26, ISSN: 2169-9313
  • CONFERENCE PAPER
    Di Chiara A, Muxworthy AR, Trindade R, 2016,

    Paleointensity of Proterozoic magmatic rocks from South America (poster)

    , EGU 2016
  • JOURNAL ARTICLE
    Dossing A, Muxworthy AR, Supakulopas R, Riishuus MS, Mac Niocaill Cet al., 2016,

    High northern geomagnetic field behavior and new constraints on the Gilsa event: Paleomagnetic and Ar-40/Ar-39 results of similar to 0.5-3.1 Ma basalts from Jokuldalur, Iceland

    , EARTH AND PLANETARY SCIENCE LETTERS, Vol: 456, Pages: 98-111, ISSN: 0012-821X

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