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Science Voc. set 5

QuestionAnswer
Abduction The lifting of landforms due to plate or fault line movement.
Asthenosphere The soft layer of the Earth's mantle made up of semisolid rock.
Cambrian boundry The geologic point at which variety of life vastly increased about 550 million years ago.
Continental drift The process by which the continents split apart from a single landmass and moved across the globe.
Continental Drift The theory that explains how the continents were once together,Pangea, and then have steadily drifted apart. First proposed by Alfred Wegener.
Convergent boundary The location where two tectonic plates of the Earth push together.
Divergent boundary The location where two tectonic plates pull apart.
Earthquake The shaking of the Earth's surface that occurs when energy stored as pressure in rocks is released quickly.
Fault A break or crack in Eath's surface along which movement occurs.
Geologic Time Scale The timeline that organizes Earth's history over the last 4.6 billion years.
Glacier A moving mass of ice or snow on land.
Hydrothermal vents Cracks in ocean crust that release mineral-rich water that has been heated by the Earth's interior. (Also known as black smokers)
K/T layer The geologic rock layer that formed between the Cretaceous and Tertiary periods. This layer marks the extinction of the most dionsaurs.
Landform A particular land formation such as a mountain, mesa, plateau...
Lithosphere The uppermost layer of Earth,made of crust and mantle.
Plate tetonics The theory stating that the Earth is broken into giant chunks of land or ocean floor hat can slowly move. Plate tectonics causes continental drift.
Subduction The proess in which one tectonic plate is pushed under another.
Tectonic plates Giant chunks of land or ocean floor that provide the hard surface of the planet. These plates collide and move. The results are mountain building, volcanoes,tsunamis, river bed formation
Unconformity Typically relating to Geology. This means that there ia a mixture of material in the rock.
Created by: brooklin14
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