Peter Olds Current CoursesChem 1A – General Chemistry 1st semesterChem 1B – General Chemistry 2nd semesterPast CoursesGeology 10 – Introductory Geology Chemistry and Geology Faculty Member Research InterestsWhy did the dinosaurs go extinct?What are the effects of asteroid and comet impacts on Earth?Can impact cratering result in ophiolite obduction?K-Pg Boundary Chromites: What can their chemistry tell us and where did they originate?Plate Tectonics – How do plate boundaries form and evolve?