Richard K. Bono

GEOMAGNETIC FIELD DESCRIPTION - Statistical field model development - Recognizing coherent signals in highly scattered data - Applying machine learning and novel statistical techniques to geomagnetic problems - Bridging between numerical dynamo simulations and paleomagnetism - Development of the MCADAM model (Monte Carlo Axial Dipole Average Model) MESOZOIC MANTLE DYNAMICS - Timing and emplacement of CAMP volcanics - Post-CAMP volcanism in eastern NA - Kinematics of plate motion following Pangea break-up - Mesozoic controls on CMB heat-flux and influence of dynamo stability PRECAMBRIAN EARTH - Ediacaran paleointensity recorded by Sept Iles Intrusive Series - Archean paleofield recorded by Jack Hills zircons - Magnetotactic bacteria in the Archean - Igneous records of Proterozoic paleofield - Hadean to Paleoarchean stagnant-lid tectonics SINGLE CRYSTAL PALEOMAGNETISM - Isolating single-domain-like magnetite in silicate crystals - Linking magnetic signals with carriers using electron microscopy - Evaluating the limits of current-generation magnetometers - Development of ultra-weak magnetic laboratory standards HIGH RESOLUTION MICROSCOPY - In-depth SEM and TEM studies of magnetic carriers within geologic materials - Magnetic microscopy to analyze magnetic carriers - Focused Ion Beam techniques to characterize magnetic grains in 3D - High resolution CT imaging of fossils - Development and interpretation of three-dimensional data of geologic materials STABILITY OF EARTH'S SPIN AXIS - Oligocene Hawaiian hotspot stability - Ediacaran Sept Iles Intrusive Series paleomagnetism - Evaluating Proterozoic records for possible rapid Earth rotation - Superchrons and secular variation - Late Cretaceous true polar wander and Earth's rotational stability EARLY DYNAMOS - Main and Eagle Station Group pallasite paleomagnetic records - Detecting evidence for dynamos in protoplanetary bodies - Potential record of a paleofield in 4 Vesta - Advancing development of single crystal paleomagnetic techniques - Ediacaran-Cambrian geodynamo renewal and inner core evolution ARCTIC IN A HIGH CO2 WORLD - Active volcanism at high latitudes - Magnetic field within the tangent cylinder - Evolution of polar coastal environments - Climate within the Arctic circle during high atmospheric CO2 DATABASES AND COMMUNITY RESOURCES - Developer and administrator of PINTdb.org, a global repository of paleointensity data - Co-organizer of MagNetZ, an online paleomagnetic seminar series - Creation of paleomagnetic databases for improved field reconstructions - Developing standardized approaches for long-term field characterization

• Mijjum, M., Bristol, K. E., Bono, R. K., Sprain, C. J., Lifton, N., & Tremblay, M. M., 2025. A Model Framework for Scaling Pre-Quaternary Cosmogenic Nuclide Production Rates. Geochemistry, Geophysics, Geosystems 26 (1), e2024GC012020, doi: 10.1029/2024GC012020 • Zhou, T., Ibañez-Mejia, M., Bono, R. K., Cottrell, R. D., Bleeker, W., Kodama, K. P., Huang, W., Blackman, E. G., Nimmo, F., Smirnov, A. V., & Tarduno, J. A., 2024. Magnetization and age of ca. 544 Ma syenite, eastern Canada: Evidence for renewal of the geodynamo. Earth and Planetary Science Letters, doi: 10.1016/j.epsl.2024.118758 • Engbers, Y. A., Thallner, D., Bono, R. K., Sprain, C. J., Murray, M. J., Bristol, K., Handford, B., Torsvik, T., & Biggin, A. J., 2024. A Global Paleosecular Variation Database for the Paleogene: Sta