Constructing a Geologic Cross Section - Wells G & H Superfund Site, Woburn, MA
E. Scott Bair (Ohio State University) and Terry Lahm (Capital University)Summary
This activity leads students through the process of creating geologic cross sections based on data obtained from well logs. Students are asked to determine the elevation of each lithology, interpolate how the lithologies behave between the well sites, and construct a finished cross section. There is also a question set for students to complete following the exercise.Learning Goals
Context for Use
This activity was developed for an introductory level, mock-trial class centered around the Woburn, MA pollution trial. It is also appropriate for an introductory level structural geology or groundwater hydrology class.Teaching Notes and Tips
Teaching Materials
- Cross Section Introduction and Activity Sheet (Microsoft Word 1.4MB Jun22 06)
- Cross Section Well Logs File (Excel 56kB Jun22 06)
- Cross Section Chart (Excel 26kB Jun22 06)
- Cross Section Questions Sheet (Microsoft Word 25kB Jun22 06)
Assessment
Students hand in the cross section they develop as well as the question set. The instructor may want to grade the cross section more qualitatively than the questions (credit for "reasonable effort" or "on the right track.")
References and Resources
Chute, N.E. (1959) . Glacial geology of the Mystic Lakes-Fresh Pond area, Massachusetts. U. S. Geological Survey Bulletin 8755-531X; B 1061-F, 187-216.