Modern concepts of the Earth's physical composition, crustal structures, and the internal/external forces acting on them.

242. Historical Geology (3).
Prerequisite: GL 241.

Study of the Earth's evolution, including changes in its crust, surface features, atmosphere, and life forms.

243. Physical Geology lab (1).
Prerequisite: Concurrent enrollment in GL 241 is required.

One two-hour lab per week. Emphasis on rock/mineral identification and the study of landforms through topographic and geologic map interpretation.

244. Historical Geology Lab (1).
Prerequisite: Concurrent enrollment in GL 242 is required.

One two-hour lab per week. Study of Earth history using geologic maps and the fossil record of plant and animal development.

483. Geology Lab Practicum (1).
Prerequisite: Consent of instructor.

Students learn how to use various pieces of equipment and lab demonstration techniques while assisting an instructor to prepare and conduct lab sessions. Pass/fail grade only. May be duplicated for credit for a total of 2 semester hours.