Cutting Edge > Courses > Geomorphology > Teaching Activities > Evidence for Active Tectonics in local watersheds-Fluvial geomorph

Evidence for Active Tectonics in local watersheds-Fluvial geomorph

Cathy Connor
,
University Alaska Southeast
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This activity has benefited from input from faculty educators beyond the author through a review and suggestion process.

This review took place as a part of a faculty professional development workshop where groups of faculty reviewed each others' activities and offered feedback and ideas for improvements. To learn more about the process On the Cutting Edge uses for activity review, see http://serc.carleton.edu/NAGTWorkshops/review.html.


This page first made public: Jul 10, 2008

Summary

In this lab, student analyze imagery from fieldtrip sites to identify fluvial geomorphic and tectonic processes.

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Context

Audience

Upper division dedicated geomorphology course

Skills and concepts that students must have mastered

know how to
-interpret images to identify faults
-make map measurements to calculate mountain sinuosity and stream gradients and lengths
-identify watershed boundaries from maps

How the activity is situated in the course

Stand alone exercise about mid-way through course

Goals

Content/concepts goals for this activity

Interpretation of imagery taken from field trip sites visited the week previously by students

Higher order thinking skills goals for this activity

Identification through field observation and map/image in lab measurements of processes that create landforms occuring over long time-scales

Other skills goals for this activity

Students generally work in groups and bounce hypotheses off one another. Group discussions foster rejection of ill-formed ideas and focus and hone better hypotheses about how land-forming processes are working locally.

Description of the activity/assignment

Students have read pertinent chapters in text, read synergistic journal papers, and done homework assignments to prepare for a fieldtrip to areas featured in lab. Having visited and viewed areas of interest they are asked to analyze pertinent images for landform quantitative parameters.
Designed for a geomorphology course

Determining whether students have met the goals

Assess student responses to lab questions relative to what is known in published literature.

More information about assessment tools and techniques.

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Other Materials

Supporting references/URLs

Geologic Map of Southeastern Alaska
1992 Gehrels and Berg USGS

Alaska Atlas of Panoramic Aerial Images
Images of Southeast Alaska - William Bowen

Geomorphic Indices Chapter: in Active Tectonics: Earthquakes, Uplift and Landscapes
Edward Keller and Nicholas Pinter. Prentice Hall, NJ ISBN 0-02-363261-5 PBK

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