For students entering Wellesley in Fall of 2007 and later: A major in geosciences includes eight geosciences courses (a minimum of 8 units of course work), at least six of which must be taken at Wellesley. Entry into the major may be through GEOS 101 or GEOS 102. Four 200-level courses are required, normally to include GEOS 200, GEOS 203 and GEOS 206. Three 300-level courses are required, one of which must be GEOS 304 and one of which may be GEOS 350, GEOS 360 or GEOS 370.

For students entering before the fall of 2007, entry into the major may be through [GEOS 100], GEOS 101, GEOS 102, ES [100] or ES 101. Four 200-level courses are required, two of which must come from the group of GEOS 200, 201 and 203. Three 300-level course are also required, one of which may be GEOS 350/360/370.

For both groups of entering students, four complementary courses from mathematics, biological sciences, chemistry, physics, astronomy, or computer science are also required, and two of theses must come from the same discipline. The department also recommends that students majoring in geosciences take a geology field course, either the MIT 12.114-12.115 sequence offered in alternate years by MIT or a summer geology field course offered by another institution.

Graduate Studies: Students considering graduate school are urged to take two semesters of mathematics, two of chemistry and two of physics. Students will choose an appropriate set of complementary courses with the guidance of a departmental advisor.

A minor in geosciences consists of five courses, including GEOS 101 or GEOS 102 and at least one course at the 300-level.