Plate tectonics: Plate Tectonics: Figure 9 (b) Map showing locations of active, sub-aerial volcanoes. Enlarged versions of Figures 9a and b are in the Appendix. ((a) BGS; (b) adapted from Johnson, 1993)

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Figure 9 (b) Map showing locations of active, sub-aerial volcanoes. Enlarged versions of Figures 9a and b are in the Appendix. ((a) BGS; (b) adapted from Johnson, 1993)

3.1 Assumptions

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