| 31. | The Yellowstone Plateau volcanic field is composed of four adjacent calderas.
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| 32. | In the centre is an active volcano with two nested calderas.
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| 33. | At the end of the eruption, a wide caldera formed.
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| 34. | The highlands are named for the many craters and calderas present.
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| 35. | Like many of the Gal�pagos volcanos, Marchena has a caldera.
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| 36. | The caldera itself is approximately deep, wide, and across.
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| 37. | The Rabaul caldera is located on the tip of this peninsula.
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| 38. | The slopes of the caldera feature a network of erosional valleys.
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| 39. | The innermost caldera is thought to date from the Late Pleistocene.
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| 40. | Mocho is an andesitic-dacitic volcano placed above the caldera.
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