1. Contemporaneous volcanic activity is represented by basic to intermediate lava and tuff.

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3. In its major eruption 1.14 million years ago, the Valles Caldera volcano spewed out over 300 cubic kilometers of ash, mostly as the Bandelier tuff (tuff being a rock composed of volcanic ash)

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5. Bandelier TUFF - VALLES CALDERA

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7. This kind of rock is called tuff.

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10. The acidic tuff section owns gold element with average content of

11. - ACID VOLCANIC ROCKS

12. Ancient volcanic valleys form two harbors, where islands are the remnants of volcanic activity.

13. The islands are volcanic.

14. None the less, quickly he came back tuff in 2001 with courage and determination.

15. They can “create” volcanic eruptions and examine the effects of volcanic dust on weather.

16. After the volcanic eruption stopped.

17. Many oceanic islands are volcanic.

18. Lateral correlation within the formation is possible using airphotos and recognizable tuff units.

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20. Where the flowing ashes are overlain by airborne ash, an ignimbrite or tuff is formed.

21. A systematic discussion of stratabound feature of tuff - type gold deposits, southwest Guizhou is conducted.

22. In this paper, advances in volcanology are reviewed from the following aspects: volcanic geology and dynamics, statistical study, volcanic hazard and volcanic impact on global climate.

23. It's alluvial, sedimentary, volcanic soil.

24. After the first volcanic eruption.

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26. You can almost feel Bob in Tuff Gong's mixture of business smarts with almost religious principles.

27. According to Dixie Kong's Photo Album, Bristles are categorized under the "Terrorfirma Tuff Guys" …

28. This information is passed between meteorological agencies, volcanic observatories and airline companies through Volcanic Ash Advisory Centers (VAAC).

29. The term may also be applied to angular volcanic rocks from a volcanic vent (vent Breccia).

30. Major biotic crises- - volcanic, glacial, oceanic.

31. The Aeolian Islands provide an outstanding record of volcanic island-building and destruction, and ongoing volcanic phenomena.

32. It's neither magmatic or volcanic in origin, and again, over 700 kilometers away from the nearest volcanic center.

33. A piece of black, volcanic glass.

34. The rock is volcanic in origin.

35. Template for advisory message for volcanic ash

36. Volcanic activity is highly episodic in nature.

37. Pumice is produced in volcanic eruptions.

38. These chemicals have leached down from volcanic catchment areas or have entered the lakes through subterranean volcanic activity.

39. Volcanic activity formed seamount and sea bill.

40. Andesite is the volcanic equivalent of diorite.

41. The central area is volcanic in origin.

42. Rich mineral resources, granite, tuff, 15 kinds of marble, and other non - metallic mineral and metal mining.

43. Andesite flow breccia, Andesite flows, and minor tuff beds; includes some basalt flows and flow breccia

44. The two early Carboniferous fragments are composed of Basalt and ash-black, fuchsia radiolaria silicalite, siliceous mudstone, tuff.

45. 10 Pulverized particulate matter ejected by volcanic eruption.

46. Based on volcanic rocks and relaxing oils.

47. The ridge consists entirely of volcanic rock.

48. Coronation is level Extra-1 of Volcanic Cavern

49. The finest fragments make volcanic ash and dust.

50. There have been several volcanic eruptions this year.

51. The trees were blasted by the volcanic eruption.

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53. Cainozoic Volcanic Rocks in Hobart Author Sutherland F.L

54. Filter material based on rock, including volcanic rock

55. The city was entombed in volcanic lava. Sentencedict.com

56. Andesite is volcanic rock named after the Andes Mountains

57. How can such a tiny moon be so volcanic?

58. Volcanic ash fall is physically, socially, and economically disruptive.

59. Two other Calderas are also postulated.-after Authors AB - Precambrian igneous rocks in the St Francois Mountains of SE Missouri consist of silicic volcanic rocks, mostly ash flow tuff, which crop out mostly in the W and SW part of the region, and epizonal granitic plutons which are mostly exposed in …

60. Extensive metamorphic-metasomatic alteration suggests that Commerce Mountain was a volcanic center, possibly associated with the eruption of the Crowsnest Formation volcanic rocks.

61. There are five major types of volcanic activity.

62. Fresh volcanic rocks are poor conductors of electricity.

63. Stratospheric Aerosols, mainly sulphate particles resulting from volcanic eruptions,

64. Marine transport can also be impacted by volcanic ash.

65. While forests were being buried there was volcanic activity.

66. The French Revolution was a volcanic upheavalin European history.

67. The Machadodorp tuff and agglomerate, which is higher-lying than the Ongeluck lave, is known only from the Eastern Transvaal.

68. The Altiplano-Puna Volcanic Complex of the Central Andes

69. Volcano Discovery provides the latest volcanic activity of Sinabung:

70. Over 200 people have been killed by volcanic eruptions.

71. A Caldera is a volcanic feature formed by the collapse of a volcano into itself, making it a large, special form of volcanic crater

72. Was an early industry innovator of the patented Tuff-Tie™ Borate Pre-Treated Crosstie. Tuff-Tie™ is a two-step treatment using Borate Disodium Octaborate Tetrahydrate (DOT) wood preservative that is designed to be utilized with other oil-borne preservative methods.

73. Andesite is the most common volcanic rock after basalt

74. Chapter 3 Volcanic eruptions are difficult things to classify.

75. With the recent volcanic activity starting in 2004, the glacier lobes were pushed aside and upward by the growth of new volcanic domes.

76. Ignimbrite is a volcanic rock typically of rhyolitic composition.

77. A Volcanic Ash Advisory Center (VAAC) is a group of experts responsible for coordinating and disseminating information on atmospheric volcanic ash clouds that may endanger aviation.

78. Petrologically the volcanic Kaiserstuhl is an alkali-carbonate rock formation.

79. It is also found around some types of volcanic vents.

80. What does Amygdaloid mean? A volcanic rock containing many amygdules