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Discovering Plate Boundaries A data rich exercise in which students discover plate tectonic boundary processes Dale S. Sawyer Rice University What will the students learn/discover? Where are the Earth’s tectonic plates and their boundaries? What happens at plate boundaries? How do earth scientists classify plate boundaries? Dale S. Sawyer Rice University Seismology Map – Earthquake Locations and Depths Dale S. Sawyer Rice University Volcanology Map – Recent Volcanic Activity Dale S. Sawyer Rice University Geochronology Map – Seafloor Age Dale S. Sawyer Rice University Geography Map – Topography and Bathymetry Dale S. Sawyer Rice University Overview of Day 1 Assemble in specialty groups Become familiar with map and to observe how the data behaves on or near plate boundaries OBSERVE rather than INTERPRET Descriptions should include words like wide or narrow, straight or curved, symmetric or not symmetric, deep or shallow, ridge or valley, active or inactive. Look at the whole world Develop a classification scheme for up to 5 boundary types using the data. The boundary types are to be called Type 1, Type 2, and etc. Write a description of each boundary type on the back of the plate boundary map Assign a pencil color to each boundary type Color the boundary with that color If the boundary is not symmetric in the data, invent a way to show that on the map Dale S. Sawyer Rice University Seismology Data Map Student Annotated Map Student Written Description Dale S. Sawyer Rice University Seismology Map Example Dale S. Sawyer Rice University Seismology Map Legend Example Dale S. Sawyer Rice University Volcanology Map Example Dale S. Sawyer Rice University Volcanology Map Legend Example Dale S. Sawyer Rice University Geochronology Map Example Dale S. Sawyer Rice University Geochronology Map Legend Example Dale S. Sawyer Rice University Geography Map Example Dale S. Sawyer Rice University Geography Map Legend Example Dale S. Sawyer Rice University Overview of Day 2 Assemble in new plate groups Each new group will consist of at least 4 students, each an expert in one specialty The group will visit each data map for a briefing by the expert on that map. Every student presents, every student is an expert! Each group is given a new plate boundary map Each plate group now focuses on the boundaries of the plates Classify those boundaries using up to 5 new boundary types The new Boundary type descriptions will now be based on all 4 data types Each group will prepare for one spokesperson to present their work to the class Each plates group spokesperson presents their work to the class Note which boundaries are new and which are omitted based on the data Dale S. Sawyer Rice University Day 3 Wrap up the exercise with a presentation on plate boundary processes Introduce divergent, convergent, and transform plate boundary types Dale S. Sawyer Rice University Day 3 Introduce correct terminology and description of the processes at plate boundaries Refer to classification descriptions that were presented/discovered by students Dale S. Sawyer Rice University