A yearlong survey, in sequence, of fundamental papers in the geosciences. Topics in 505 (Spring) include the origin and interior of the Earth, plate tectonics, geodynamics, the history of life on Earth, the composition of the Earth, its oceans and atmospheres, past climate. Topics in 506 (Fall) include present and future climate, biogeochemical processes in the ocean, geochemical cycles, orogenies, thermochronology, rock fracture and seismicity. A core course for all beginning graduate students in the geosciences.

This seminar provides an overview of the rapidly developing field of geobiology, which aims at investigating how life influences and is influenced by Earth processes. Students are expected to present and lead article discussions, construct, peer and panel review NSF-style graduate student fellowship research proposals in the second half of the course. Prerequisites: General chemistry, General Biology, Environmental Microbiology or by instructor permission.

Microbes were the first life forms on Earth and are the most abundant life forms today. Their metabolisms underpin the cycling of carbon, nitrogen, and other important elements through Earth systems. This course will cover the fundamentals of microbial physiology and ecology and examine how microbial activities have shaped modern and ancient environments, with the goal of illustrating the profound influence of microbial life on our planet for over 3 billion years.