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Dynamic Earth

Sienna Mifsud


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5.of igneous rock that has solidified beneath the earth's surface
7.liquid rock on Earth's crust
10.igneous rock produced by eruption and solidified on or near the earth's surface
13.a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
14.shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity
15.a fine-grained metamorphic rock that can be split into thin layers
16.condition in which the earth's surface is worn away by the action of water and wind
17.molten rock generated within the earth
19.a measuring instrument for detecting and measuring the intensity and direction and duration of movements of the ground (as an earthquake)
21.# an objective measure of the strength of an earthquake. It measures the degree of magnitude.
23.a hard crystalline metamorphic rock that takes a high polish
24.Outer layer of Earth composed of tectonic plates.
32.the gradual movement and formation of continents (as described by plate tectonics)
33.igneous- very light gray to a medium gray- contains a large number of gas bubbles each surrounded by a thin layer of volcanic glass- looks something like a sponge- very light weight- most pieces will float in water- flow lines or bands may show
34.a bend in rock that forms where part of the earth's crust is compressed.
35.plutonic igneous rock having visibly crystalline texture
36.the middle layer of the earth and is found just below the crust
37.forms when sand, mud, and pebbles at the bottom of rivers and oceans pile up and cement together
38.the point inside the Earth where an earthquake begins
1.the commonest type of solidified lava
2.ard metamorphic rock consisting essentially of interlocking quartz crystals
3.fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
4.A location on the surface of the Earth directly above the point(focus) where an earthquake occurs.
6.Circular currents in the mantle caused by the magma being heated by the core off the Earth.
8.a mountain that forms when magma reaches the surface
9.a composite rock made up of particles of varying size
11.an upward bend or fold in a rock layer
12.a sedimentary rock formed by the deposition of successive layers of clay
18.Rocks formed when other rocks are put under extreme heat and pressure
20.a hypothetical continent that (according to plate tectonic theory) broke up later into India and Australia and Africa and South America and Antarctica
22.Sections of the Earth's crust that move due to convection currents.
25.a downward bend or fold in a rock layer
26.rock that solidified from magma
27.(geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other
28.a sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.)
29.the process that crumbles, cracks, and breaks rocks (slow change by wind and water)
30.Liquid layer below the mantle. It is probaly made of melted iron.
31.solid, dense center of the Earth

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