| 11. | Above subduction zones, volcanoes exist in long chains called volcanic arcs.
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| 12. | The active volcanic arc creating supervolcano that today become Lake Toba in Sumatra.
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| 13. | The latter group is in one volcanic arc together with the Philippines volcanoes.
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| 14. | Some sediments were deposited near the Casma Volcanic Arc in an anoxic pockets.
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| 15. | Within this volcanic arc, volcanic activity provided pyroclastic ash fall deposits to the area.
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| 16. | El Chich�n is part of a geologic zone known as the Chiapanecan Volcanic Arc.
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| 17. | The field is located behind the main volcanic arc of the Central Volcanic Zone.
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| 18. | During the Pliocene the SVZ south of 38�S consisted of a broad volcanic arc.
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| 19. | It is tectonically influenced by the Arabian Plate Taftan form the Sultan volcanic arc.
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| 20. | The forearc lies between the trench and the volcanic arc.
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