Hal Noltimier, with undergraduate majors and graduate students, studies several types of geophysical problems: basement structure and topography using gravity and geomagnetic survey data, heat flow of Late Tertiary and Quaternary igneous complexes, and paleogeographic reconstruction using paleomagnetism with geochronology and distinctive mineralization as guides and controls. Support has been provided nationally and internationally by several energy companies, Fulbright-Hayes, and the Swedish Natural Sciences Research Council. Current studies involve students and the Shell Undergraduate University Research Experience (SURE).