Graham discusses Patagonian geological expedition

A crew of 13 geology students, professors and alumni, including Professor Steven Graham, traveled recently to Chile to study 100-million-year-old rocks found in Torres del Paine National Park near the southernmost tip of South America. There, in the shadow of a stunning mountain range -- armed with compasses, hammers, hand lenses and measuring staffs -- they learned more about the geology of similar rocks buried off the coast of West Africa and their vast petroleum potential.

Video: Betsy Mason and Jack Hubbard

• In journey to Chile, group discovers clues to African oil exploration
  
  
• Stanford Project on Deep-Water Depositional Systems
  
  
• Patagonia: Life at the end of the Earth (PBS)