Summary
I'm an STFC funded PhD Student in the Natural Magnetism Group. I look at how rocks record the magnetic field.
The magnetic field intensity (palaeointensity) recorded by rocks and meteorites provides invaluable information about the Earth’s geomagnetic field and magnetic fields in the Solar System. Palaeointensities are used in investigating a range of geological questions including when the Earth’s inner core nucleated or how the early Solar System evolved.
My research is focused on modelling how rocks record the magnetic field during the growth or alteration of magnetic minerals, this is termed chemical remanent magnetization (CRM) acquisition.
Currently, we can only determine palaeointensities recorded by rocks that acquired their magnetization during cooling, e.g., when a lava flow cools. By modelling CRM acquisition we are aiming to improve our ability to predict palaeointensities recorded when magnetic minerals grow or alter and acquire CRMs.
Teaching assistant
EART50002: High Temperature Geochemistry
EART60001b: 3rd Year Independent Project: Geophysics
EART60003: Climate
EART50004 Applied Geophysics
EART50006: Field Geophysics (Cyprus field trip)
Biography
2019 – Present – PhD student, Imperial College London
2015-2019 – MSci Geophysics, Imperial College London
Publications
Journals
Di Chiara A, Muxworthy AR, Trindade RIF, et al., 2023, Mesoproterozoic geomagnetic field strength from Nova Guarita mafic dykes (Amazon Craton), Studia Geophysica Et Geodaetica: a Journal of Geophysics, Geodesy, Meteorology and Climatology, ISSN:0039-3169
Baker EB, Muxworthy A, 2023, Using Preisach theory to evaluate chemical remanent magnetization and its behavior during Thellier-Thellier-Coe paleointensity experiments, Journal of Geophysical Research: Solid Earth, ISSN:2169-9356
Wei F, Prytulak J, Baker EB, et al., 2022, Identifying Tethys oceanic fingerprint in post-collisional potassium-rich lavas in Tibet using thallium isotopes, Chemical Geology, Vol:607, ISSN:0009-2541
Muxworthy A, Baker E, 2021, ThellierCoolPy: A cooling-rate correction tool for paleointensity data, G3: Geochemistry, Geophysics, Geosystems: an Electronic Journal of the Earth Sciences, Vol:22, ISSN:1525-2027, Pages:1-8