Plate Boundaries What kinds are where?

Scientific Specialty Groups “jigsaw”

Count Off! 1, 2, 3, 4 Re-start at 1 for each table

Scientific Specialty Groups 1.Seismology 2.Volcanology 3.Geography (elevation/depth) 4.Geochronology (rock ages)

Specialty Group Tasks 1.Look for patterns in the data.  distribution of event sites  directions of trends, locations of extremes 2.Work as a group. 3.Let everyone talk about what they see. 4.Look at the whole earth.

Plate Boundary Patterns 1.Focus on plate boundaries.  What patterns occur at boundaries?  Are there different types of features?  Are features symmetric or asymmetric? 2.Classify the plate boundaries.  Base only on your group’s data.  Limit to 4–5 types.  Classify, don’t explain! (law, not theory)

Map the Boundaries 1.Assign a color to each category. 2.Devise notation to indicate asymmetries. 3.Everyone color one map sheet.  Write down legend.  Write down descriptions of boundary types. 4.Practice verbal explanation/presentation.

Plate Groups your “regular” groups

Each Specialty Explain your boundary classification.  Identify characteristics of each class.  Show data maps if useful.

Whole Plate Group 1.Compare classification schemes.  Boundaries consistently classed together?  Disagreements between classifications? 2.Devise comprehensive classification.  Accommodate all data.  Define types.  Assign colors to types.  Indicate asymmetries.

Plan Presentations 1.Boundary type characteristics 2.Boundaries of assigned plate(s)

Whole Class agree if it’s the last thing we do

Each Group Present 1.Proposed classification scheme 2.Boundaries of assigned plate(s)

Class Negotiation 1.Classification scheme  boundary type characteristics  classify all boundaries 2.Notation convention  color for each type  indicators of asymmetry

Mark Second Map 1.Use color scheme 2.Write type definitions 3.Draw legend