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Meteorology

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TermDefinition
Amber hard translucent fossilized resin produced by extinct coniferous trees of the Tertiary period, typically yellowish in color.
Fossil the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
Cast an object made by shaping molten metal or similar material in a mold
Index Fossil a fossil that is useful for dating and correlating the strata in which it is found.
Mold a hollow container used to give shape to molten or hot liquid material (such as wax or metal) when it cools and hardens.
Permineralization a process of fossilization in which mineral deposits form internal casts of organisms
Trace fossil a fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself.
Cross-cutting Relationships an igneous intrusion is always younger than the rock it cuts across
Geologic time a system of chronological measurement that relates stratigraphy to time,
Lateral Continuity states that layers of sediment initially extend laterally in all directions; in other words, they are laterally continuous
Original horizontality states that layers of sediment are originally deposited horizontally under the action of gravity
Relative Age common practice for dating rocks and strata
Half-life the time taken for the radioactivity of a specified isotope to fall to half its original value
Ice core is a core sample that is typically removed from an ice sheet
Isotope each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei,
Radiometric dating a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.
Differentiation the action or process of differentiating.
Outgassing release or give off as a gas or vapor.
Supercontinent each of several large landmasses thought to have divided to form the present continents in the geological past.
Pangaea a hypothetical supercontinent that included all current land masses
Orogeny a process in which a section of the earth's crust is folded and deformed by lateral compression to form a mountain range.
Evolution the gradual development of something, especially from a simple to a more complex form.
Natural Selection the process whereby organisms better adapted to their environment tend to survive and produce more offspring
Created by: 3082501
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