| 41. | In the late Miocene-Pliocene a phase of strong ignimbrite volcanism occurred.
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| 42. | Examples of pyroclastic rocks are tuff and ignimbrite.
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| 43. | This consists of up to of ignimbrite, representing another series of pyroclastic flows.
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| 44. | The Chaxas ignimbrite erupted 1.09 ?0.56 million years ago.
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| 45. | Explosively erupted pyroclastic material is called tephra and includes tuff, agglomerate and ignimbrite.
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| 46. | Brisbane tuff is a form of welded ignimbrite.
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| 47. | Its deposit, the Verde Ignimbrite, is pumice rich and green in colour.
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| 48. | The Carachi Ignimbrite overlies the Barranca Blanca ignimbrite.
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| 49. | The Carachi Ignimbrite overlies the Barranca Blanca ignimbrite.
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| 50. | Another eastern collapse was generated by the Tara Ignimbrite eruption, with dimensions of.
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