| 41. | The stratovolcano has a volume of and comprises several volcanic vents, some of which were formally more than in elevation.
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| 42. | Microbes have been found at the bottom of the ocean around volcanic vents, in polar ice and in boiling pools.
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| 43. | However, existence of volcanic bombs at the Plinian tephra deposits indicates the volcanic vent of its origin is located nearby.
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| 44. | The vent is best described as a diatreme, defined as a volcanic vent blasted through solid rock by exploding gases.
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| 45. | It consists of subvolcanic intrusions of a partly preserved volcanic vent and felsic volcanic rocks that were erupted from the vent.
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| 46. | Reporters with special passes traveled a southern road covered in volcanic ash to within a mile of the spewing volcanic vents.
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| 47. | Prune Hill is an extinct volcanic vent and is part of the Boring Lava Field of northwest Oregon and southwest Washington.
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| 48. | Its highest point is Chance Peak, elevation 3, 000 feet ( 914 meters ), which spouted a volcanic vent this week.
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| 49. | However, some contributions from volcanic plumes are required as the highest observed densities have been seen near volcanic vents . ).
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| 50. | Its massive level rock columns were constructed inside the main volcanic vent of a stratovolcano that has since been reduced by erosion.
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