GEOS 102
An Unfinished Planet Spring 2023
Division III
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Class Details

The Earth is a work-in-progress, an evolving planet whose vital signs–as expressed by earthquakes, volcanic eruptions, and shifting plates–are still strong. In a geological time frame, nothing on Earth is permanent: ocean basins open and close, mountains rise and fall, continental masses collide and pull apart. There is a message here for all of us who live, for an infinitesimally brief time, on the moving surface of the globe. This course uses the plate tectonics model–one of the fundamental scientific accomplishments of the past century–to interpret the processes and products of a changing Earth. The emphasis will be on mountain systems (on land and beneath the oceans) as expressions of plate interactions. Specific topics include the rocks and structures of modern and ancient mountain belts, the patterns of global seismicity and volcanism, the nature of the Earth’s interior, the changing configurations of continents and ocean basins through time, and, in some detail, the formation of the Appalachian Mountain system and the geological assembly of New England. Readings will be from a physical geology textbook, a primary source supplement, selected writings of John McPhee, and references about the geology of the Northeast. This course is in the Solid Earth group for the Geosciences major.
The Class: Format: lecture/laboratory; lecture three hours per week and lab (several involving field work) two hours per week; one required all-day field trip on the last Monday of the semester to the Connecticut Valley and the highlands of western Massachusetts
Limit: 40
Expected: 40
Class#: 3332
Grading: yes pass/fail option, no fifth course option
Requirements/Evaluation: three hour-tests and weekly lab work
Prerequisites: none
Enrollment Preferences: first year and second year students, Geosciences majors
Distributions: Division III
Attributes: ENVI Natural World Electives
EXPE Experiential Education Courses
GEOS Group C Electives - Solid Earth

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