Paleomagnetism, Tectonics, Paleogeography, Paleosecular Variation, Rock Magnetism, Magnetic Anisotropy, Geochronology
Currently, my principal objective is to construct a reliable global tectonic model with continuously closing plate polygons for the Phanerozoic. Such a quantitative model will be a highly useful input to any simulation in which paleogeography is a variable (e.g. geodynamics, paleoclimate), and it can serve as a base-layer upon which to build more complex regional models. In support of this primary objective, one of my secondary goals is to augment the existing global paleomagnetic database, with a specific aim to ameliorate critically-data-deficient (spatially and/or temporally) intervals. Similarly, older paleomagnetic datasets will be re-evaluated. A more independent secondary objective is to better define any time-dependent statistical properties of the paleomagnetic field, as can be quantified by paleosecular variation studies.
Mathew Domeier grew up in the eastern U.S., on a Triassic rift that signified the end of the last supercontinent (Pangea). On the western horizon he could see the denudated mountains that denoted its assembly. Perhaps then, he was predisposed to tectonics and paleogeography. Mathew discovered that during his early undergraduate years (at Slippery Rock University), when his first geology field trip quickly dispatched any inclination he may have thought he had for anything else. A formative summer internship in Alaska (NSF REU) sealed his fate, and applied a fine tuning to his Earth-science interests; he left a paleomagnetist. Domeier subsequently (and unsurprisingly) gravitated to the lab of Rob Van der Voo (University of Michigan) for his graduate studies. His dissertation was focused on resolving a long-standing discrepancy between the conventional (Wegenerian) paleogeographic reconstruction of Pangea and the paleomagnetic data for the late Paleozoic-early Mesozoic. Previous solutions had invoked either dramatically different paleogeographic models or non-dipole paleomagnetic fields, both of which introduce crippling problems. Through the collection of new paleomagnetic data, the retroactive correction of biased pre-existing data, and the utilization of updated Euler parameters, Mathew was able to demonstrate that the conventional model of Pangea and the paleomagnetic data (assuming a dipole) could be reconciled.