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Lesson 9: Analyzing the Fossil Record (Earth's Dynamic Systems)
Vocabulary for Smithsonian STC-MS Earth's Dynamic Systems Unit
Terms in this set (16)
A measurement or description of the number of different living organisms in an environment.
Vibrations within Earth caused by the sudden release of energy, usually as a result of the movement of rocks along a fault.
The process of systematically removing earth in order to find or isolate buried remains.
Preserved remains of an organism, usually from prehistoric times.
A data set providing information on the total number of fossils that have been collected over time.
A system of chronological events in Earth's history.
Crater formed when meteoroids, asteroids, or comets smashed into the surface of a planet or moon.
A widely distributed fossil that existed in a narrow range of time and is used by scientists to identify geological periods.
Law of Superposition
A basic law of geology that states undisturbed rock strata are deposited chronologically. The youngest layer is on top and each layer beneath it is older.
An extinction of a large number of species within a relatively short period of geological time.
Rock formed from other rock that has been exposed over a long time to heat and pressure and has changed into different rock.
The study of fossils from early geologic time periods.
Rock that forms over time as sediments become compacted and cemented together.
Multiple layers of material.
A series of sea waves caused by undersea events, such as an earthquake beneath the ocean floor, that rise to great heights as they near a shore.
A landform, usually cone-shaped, produced by a collection of erupted material around a vent, or opening on the surface of Earth and through which gas and erupted material pass.
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