|– Marine and planetary geophysical imaging at nested resolutions and ground truth through drilling, coring, logging, and sampling.|
– Tectonic processes, tectonic-climate interactions, and geohazards of convergent margins and transitional tectonic environments.
– Role of catastrophism in the geologic record including impact cratering, hurricanes, and tectonic events.
– Planetary habitability, impact ...
|Dr. Helper is a field geologist, a generalist whose interests span igneous and metamorphic petrology, structural geology, tectonics, mineralogy and planetary field geology. His current research explores geochemical and isotopic similarities of Proterozoic and Archean crust in East Antarctica and the southwestern U.S., the Precambrian geology of Texas, and ...|
|Vertebrate paleontology, evolution and development of the vertebrate skeleton, phylogenetic systematics, the early history of mammals and their extinct relatives among Synapsida, the history of birds and their extinct relatives among Dinosauria, the history of other amniotes, high-resolution X-ray computed tomography, CT scanner, DigiMorph, informatics|