EOS 425

Aqueous Chemistry in the Earth and Ocean

Units: 1.5

Hours: 3-3

What controls the concentrations of aqueous species in the hydrosphere? Principles of chemical equilibrium and kinetics are applied to the major aspects of the global hydrochemical cycle. Investigates reactions and sources and sinks of elements in oxic and anoxic aquatic systems such as rainwater, rivers, lakes, groundwater, estuaries, and oceans; also the application of natural and anthropogenic tracers to geochemical problems within aquatic systems.


  • Normally offered in alternate years. Students are advised to consult with the department to determine when this is offered.


  • EOS 240; and
  • one of EOS 335, EOS 430, 1.5 units of 300- or 400-level CHEM course; or
  • permission of the school.

Undergraduate course in Earth and Ocean Sciences offered by the School of Earth and Ocean Sciences in the Faculty of Science.

Fall 2017 Spring 2018 Summer 2018

Note that not all courses are offered in every term. If a course is not offered, the schedule page will alert you that "No classes were found that meet your search criteria."