Click to enlarge"Converging and Diverging Plate Boundaries"

12" x 1.75"

Center of sea-glass is surrounded by an area of chattered porcelain clay that was glazed with rock slurry from the Kane Fracture Zone, and area of the Mid-Atlantic Ridge. outside of that is fine-grained sediment from the Costa Rican accretionary prism, an area of subducting plates under immense pressure from friction.

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