GEOS 102
An Unfinished Planet Spring 2020
Division III

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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 accrete and separate. 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.
The Class: Type: lecture, three hours per week; 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#: 3594
Grading: yes pass/fail option, yes fifth course option
Requirements/Evaluation: evaluation will be based on two hour-tests, weekly lab work, and a scheduled final exam
Prerequisites: none
Enrollment Preferences: first-year and sophomore students
Distributions: Division III
Attributes: ENVI Natural World Electives
EXPE Experiential Education Courses
GEOS Group C Electives - Solid Earth

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