Our faculty and staff engage in research projects aimed at processes of continental deformation, fault growth, normal faulting, the origin of sedimentary layering patterns, Neoproterozoic Earth history, and orbital forcing of the Earth's climate and its geological consequences. Current research is interdisciplinary and field-based, making connections between sedimentary and structural geology, seismology, volcanology, paleomagnetism, Tertiary and Quaternary stratigraphy, isotope geochronology and numerical modeling. Our approach to science is eclectic, with a focus on fundamental problems in crustal geology and tectonics. We collaborate actively with colleagues in geophysics, tectonophysics, isotope geochemistry, geochronology and paleoclimatology, and with paleontologists at the American Museum of Natural History. Opportunities are available for Columbia students to learn about and to undertake projects and excursions that are organized reguarly for both undergraduate and graduate students.