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Geology

Stack #191879

QuestionAnswer
Geology the study of the Earth and its land
Sedimentary A type of rock that is composed of tiny parts cemented together.
Igneous Magma that has cooled down into rock.
Metamorphic Rock that has been subjected to high heat and temperature.
Erosion the process by which wind, water, ice and gravity remove and transport material from one place to another.
Deposition When material is added to a landform or mass.
Subsidence the sinking of the Earth's crust to lower regions.
Chemical Weathering Weathering caused by chemical reactions in the rock like acid rain or reacting with other chemicals.
Pangaea The supercontinent that existed 245 million years ago.
plate tectonics The theory that the lithosphere is divided into tectonic plates that move around on top of the asthenosphere.
Alfred Wegner Scientist that proposed the continental drift theory
continental drift The theory that continents can drift apart from one another and have done so in the past.
sea floor spreading The process in which new oceanic lithosphere forms at mid-ocean ridges create additional land.
convergent boundary When two tectonic plates collide. The crust can either be pushed upward or pulled under the other plate.
divergent boundary When two tectonic plates separate. New ocean floor forms here. Mid-ocean ridges are common at this boundary.
transform boundary When two tectonic plates slide by each other horizontally. An example of this is a fault. When the plates slide it can cause an earthquake.
topographic map A type of map that shows elevation through contour lines.
Physical weathering Weathering caused by wind, water or ice.
Created by: chanteb
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