| 11. | "' Punchbowl Crater "'( 546 ft ) is an extinct volcanic tuff cone located in Honolulu, Hawaii.
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| 12. | Twenty six ( 26 ) of these are tuff cones, five are cinder cones and four are maars.
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| 13. | A low tuff cone with an explosion crater about 150m wide, it is now covered by industrial development.
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| 14. | The North and South "'Menan Buttes "'in southeastern Idaho are two of the world's largest volcanic tuff cones.
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| 15. | The peak is actually a tuff cone, formed of the ash left over from a long-ago volcanic explosion.
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| 16. | In contrast to tuff cones, the crater of a tuff ring generally has been excavated below the existing ground surface.
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| 17. | Through these eruptions, Seongsan Ilchulbong Tuff Cone shows a perfect cross section from the intracrater strata to the marginal strata.
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| 18. | The cone is typical of tuff cones, which form during eruptions in the presence of standing water or abundant groundwater.
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| 19. | Eroded Crater is breached at both west and east ends and its tuff cone partly eroded by the adjacent Puhinui Stream.
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| 20. | Brown Bluff is subdivided into four stages : pillow volcano, tuff cone, slope failure, and hyaloclastite delta and into five structural units.
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