Active Tectonics Field Trip
George Davis, University of Arizona
This activity was selected for the On the Cutting Edge Reviewed Teaching Collection
This activity has received positive reviews in a peer review process involving five review categories. The five categories included in the process are
- Scientific Accuracy
- Alignment of Learning Goals, Activities, and Assessments
- Pedagogic Effectiveness
- Robustness (usability and dependability of all components)
- Completeness of the ActivitySheet web page
For more information about the peer review process itself, please see https://serc.carleton.edu/teachearth/activity_review.html.
- First Publication: June 1, 2012
- Reviewed: January 17, 2015 -- Reviewed by the On the Cutting Edge Activity Review Process
Summary
By far most field trips in structural geology and regional tectonics do NOT take place in large urban centers with a trip focus on mitigation of hazards. What is described here is an example of the instructional and learning opportunities associated with active tectonic examination of large population centers.
ACTIVE TECTONICS, HAZARDS, ACTIVE TECTONICS AND SOCIETY, URBAN GEOLOGY, EARTHQUAKES
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Audience
Active tectonics course for seniors and graduate students
Skills and concepts that students must have mastered
Expect that the students will need a comprehensive background in core courses in geology and geophysics. Students who benefit most are ones experienced and/or skilled in integrating across fields and drawing on varieties of data sets crossing structural geology, regional tectonics, earthquake seismology, paleoseismology, geodesy.
How the activity is situated in the course
Culminating project, fed by more than a half-semester of grinding on the literature pertinent to the region/city being visited.
Goals
Content/concepts goals for this activity
Active tectonics, kinematic analysis, hazards analysis, earthquake geology
Higher order thinking skills goals for this activity
Tectonic synthesis. Integration across geology, geodesy, earthquake seismology.
Other skills goals for this activity
Though not a skill goal, the experience opens the eyes of students who are looking for career applications outside of academia, oil/gas, and the minerals industries.
Description and Teaching Materials
Structural geology field trip activities, in my general
experience, tend to be out in the middle of nowhere. Thus it was quite a change when Susan Beck
and I decided to lead an active tectonics course field trip to Los
Angeles. Our class consisted of ~20
seniors and graduate students, as well as a visiting professor of political
science. The goal was to gain a
first-hand grasp of the many dimensions of active tectonics research and
applications. Our list of activities,
below, gives a sense for the range of experiences. An important dimension of this activity was
preparing, through reading and presentation of germane literature. The strength of the trip importantly related
to observing connections among fields, offices, professions, careers:
university faculty, insurance company management, high department, emergency
services at county level, consulting geologists, USGS geologists, etc.
Day 1: Overview of the tectonics of the Los Angeles Basin,
followed by tour of paleoseismology sites and discussion of research results at
those sites. Our guide was Jim Dolan,
USC.
Day 2: Visit to the Southern California Earthquake Center
(SCEC), with presentations by Jill Andrews (on knowledge transfer), Kurt
Abdouch (earthquake education goals), and then a focus on the Master Model
approach to seismotectonic analysis in the LA Basin.
Day 3: Site-specific
visits to examine landslide mitigation, and role of consultants in evaluating
seismic hazards in developments. Our
host was Bruce Clark, Leighton and Associates.
Day 4: Plate tectonic
animations of Pacific/North American plate motions. Tanya Atwater. Folding, faulting, liquifaction, and
paleoseismology, Santa Barbara. Ed
Keller and Larry Gurollo.
Day 5: Ventura anticline and related active tectonic
phenomena. Our guide was Art Sylvester.
Day 6: Wrigthwood paleoseismology site, and Pallett Creek site,
San Andreas fault. Tom Fumal, USGS.
Day 7: San Bernardino County Emergency Services Center. Denise Benson,
Wes Reeder, Valerie Pilmer.
Teaching Notes and Tips
Success depends upon the instructor investing time/energy well in advance in directly contacting colleagues who are willing, if not eager, to serve as guides/hosts for the various components of the trip. This recruitment works best when the goals and dimensions of the proposed trip are clear and comprehensive, and innovative.
Assessment
Ideal if students present their own researched knowledge on the trip itself, commonly in the presence of local experts. Keeping a portfolio of activities and observations becomes a tangible output. The portfolio begins with the reading and note-taking preparation.
References and Resources