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Mount Saint Helens

John Bucsanyi

Bits of information on Mount Saint Helens and Plate Tectonics

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7.refers to heat sources within the planet
10.is a roughly circular mound-shaped protrusion resulting from the slow eruption of felsic lava (usually rhyolite and/or dacite) from a volcano
13.one of the school colors
14.School mascot
15.Creator of this Crossword
16.is the extended perimeter of each continent and associated coastal plain
17.are natural conduits through which lava travels beneath the surface of a lava flow, expelled by a volcano during an eruption.
19.so named for their broad, shield-like profiles, are formed by the eruption of low-viscosity lavas that can flow a great distance from a vent, but not generally explode catastrophically
22.is an area of frequent earthquakes and volcanic eruptions encircling the basin of the Pacific Ocean
23.Teacher of Sixth Grade Science Class
24.is the study of volcanoes, lava, magma, and related geological phenomena
28.are waves that travel through the Earth, most often as the result of a tectonic earthquake, sometimes from an explosion.
30.School Principle
33.occur when rising magma makes contact with ground or surface water
36.is molten rock that sometimes forms beneath the surface of the Earth
37.is an opening, or rupture, in a planet's surface or crust, which allows hot, molten rock, ash, and gases to escape from below the surface
39.bits of pulverized rock and glass created by volcanic eruptions
43.What volcanoes sprew
45.refers to the movement of the Earth's continents relative to each other
46.is the outermost solid shell of a planet
47.is a depressed block of land bordered by parallel faults
49.is another Greek term from Seism - "the shakes" and Graphos - "I draw
51.is the popular term for a large volcano that usually has a large caldera and can potentially produce devastation on an enormous, sometimes continental, scale.
52.is an igneous, volcanic rock with a high iron content
55.is the result of a sudden release of energy in the Earth's crust that creates seismic waves
56.is a series of waves created when a body of water, such as an ocean, is rapidly displaced.
57.is a textural term for a volcanic rock that is a solidified frothy lava
58.is an earthquake that occurs after a previous earthquake
59.The month we are in
1.is an active volcano in the Hawaiʻian Islands
2.is a broad, low relief crater that is caused by a phreatic eruption or explosion caused by groundwater contact with hot lava or magma
3.is a theory of geology that has been developed to explain the observed evidence for large scale motions of the Earth's lithosphere.
4.occur where two plates slide towards each other commonly forming either a subduction zone (if one plate moves underneath the other) or a continental collision (if the two plates contain continental crust).
5.is an underwater mountain range, formed by plate tectonics
6.Color of a school bus
8.occur where plates slide or, perhaps more accurately, grind past each other along transform faults
9.Holiday on March 23, 2008
11.result from eruptions that erupt mostly small pieces of scoria and pyroclastics (both resemble cinders, hence the name of this volcano type) that build up around the vent.
12.The month John was born in
13.interior of the Earth
18.is a volcanic feature formed by the collapse of land following a volcanic eruption.
20.occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge
21.two plates move apart from each other and the space that this creates is filled with new crustal material sourced from molten magma that forms below
25.is a conspicuous landform and feature of many volcanoes
26.The city the school is located
27.is a volcano which is not currently active
29.is a large underground pool of molten rock lying under the surface of the earth's crust
31.is the point on the Earth's surface that is directly above the hypocenter or focus, the point where an earthquake or other underground explosion originates.
32.is a chain of volcanic islands or mountains formed by plate tectonics as an oceanic tectonic plate subducts under another tectonic plate and produces magma.
34.scale, assigns a single number to quantify the amount of seismic energy released by an earthquake
35.are tall conical mountains composed of lava flows and other ejecta in alternate layers, the strata that give rise to the name.
38.The state Mount Saint Helens is located
40.The mountain range Mount St. Helens is located in
41.is the solid outermost shell of a rocky planet
42.is a planar rock fracture, which shows evidence of relative movement
44.is a lake that forms in a volcanic crater, caldera, or maar
48.built by slow eruptions of highly viscous lavas
50.s an igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture
53.What vocanoes do
54.is air-fall material produced by a volcanic eruption regardless of composition or fragment size

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