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ACROSS
1. Finest pyroclast
4. Ratio of circumference to diameter
6. Toxic component of LAZE
7. Lethal lake
12. Typical methodology
14. Isle ___ Wight
17. Earth's satellite to Pliny
18. Most deadly volcanic phenomena
21. Eruption ruckus?
23. Help for poor student of volcanology
24. Middle tier of joints
in a lava flow
25. 2.54 cm, or Highland loch
27. "____ and behold!"
28. Unkindest ____ of all
29. Occurs at an oceanic trench
30. Part of Freud's psyche
34. "Negatory"
35. Volcanic glass
36. Opening at volcano
summit
37. Hydrovolcanic vent
39. LXXVII before Pliny's Vesuvius
40. Fate of an object in a highly viscous medium
44. River, in Sonora
47. Volcanic rock of an intermediate
composition
49. "____ pig's eye!"
50. Volcanic mudflow
52. Ore analysis
55. SiO2
56. Molten rock is transported
through this
shallow conduit
58. Direction of an eruptive column
59. Intermediate-sized tephra fragments
60. Mg2(Si2O6) (abbr.)
61. _______ ardente
62. Molten rock on the Earth's surface
64. Hawaiian Goddess of
Fire
65. Molten rock beneath the Earth's surface
66. Airborne pyroclastic material |
DOWN
2. Mt. St.
Helens is one
3. 55 down, in Sonora
5. "Not one _____."
8. (Mg,Fe)2SiO4 (abbr.)
9. Component of volcanic
gas
10. Basaltic
lava flow with smooth upper surface
11. Pyroclastic fragments that accumulate as
liquid
droplets
12. Vent
composed mostly of basaltic tephra
13. Mexican
volcano born in a cornfield
15. Typical feature of an Hawaiian eruption
16. Pyroclastic
fragment
larger 59 across -- link
19. "Say it ain't ___ , Joe!"
20. An ill one awaited the villagers of Pompeii
22. Mt.
Pelee
is located here
26. Site of the on-going
Hawaiian eruption
that began in 1983
31. Generated
in the aftermath of a Plinian eruption
32. Relative distance travelled by a low-viscosity lava flow
33. A pyroclastic flow up close
38. The lithosphere _______ above a convecting asthenosphere
40. Silicon (abbr.)
41. 1-800-CAL-LA___
42. 26 down is located on this shield volcano
43. Created when a volcano
collapses into its own magma chamber
45. "______ of the Earth"?
46. A low-viscosity, mafic magma
48. Surface
collapse structure above 56 across
51. Subdued
hill surrounded by recent lava
53. Mauna
Loa is
one
54. "As the lahar approached, we _____ for cover"
55. Radiating ball of energy at the center of our solar system
57. Scale
of Explosivity
(abbr.)
63. Rugged
basaltic lava flow |
