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ESPS vocab

TermDefinition
Cratering form a crater in (the ground or a planet).
Crater a large, bowl-shaped cavity in the ground or on the surface of a planet or the moon, typically one caused by an explosion or the impact of a meteorite or other celestial body.
Ejecta material that is forced or thrown out, especially as a result of volcanic eruption, meteoritic impact, or stellar explosion.
Ray each of the lines in which light (and heat) may seem to stream from the sun or any luminous body, or pass through a small opening
Meteoroids a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
meteorites a meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground. More than 90 percent of meteorites are of rock, while the remainder consist wholly or partly of iron and nickel.
Meteor a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.
Comet a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.
Asteroid a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles (1,000 km) across (Ceres) to dust particles, are found (as the asteroid belt ) especially between the orbits of Mars and Jupiter,
Geologic Time scale a system of chronological dating that relates geological strata (stratigraphy) to time, and is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history.
Stratigraphy the branch of geology concerned with the order and relative position of strata and their relationship to the geological time scale.
Strata a layer or a series of layers of rock in the ground.
Radiometric Dating adioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.
Relative Age the science of determining the relative order of past events (i.e., the age of an object in comparison to another), without necessarily determining their absolute age, (i.e. estimated age).
Absolute Dating Absolute dating is the process of determining an age on a specified chronology in archaeology and geology.
Radiometric Dating Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.
Carbon dating Carbon dating is a variety of radioactive dating which is applicable only to matter which was once living and presumed to be in equilibrium with the atmosphere, taking in carbon dioxide from the air for photosynthesis
Lithosphere the rigid outer part of the earth, consisting of the crust and upper mantle.
Asthenosphere the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
Nonconformity failure or refusal to conform to a prevailing rule or practice.
Created by: Shamal