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science

TermDefinition
fossil The trace or remains of an organism that lived long ago, most commonly found in sedimentary rock.
trace fossil A fossilized structure, such as a footprint or a coprolite, that formed in sedimentary rock by animal activity on or within soft sediment.
Uniformitarianism A principle that geological processes that occurred in the past can be explained by current geological processes.
climate The weather conditions in an area over a long period of time.
ice core A long cylinder of ice obtained from drilling thorough ice caps; used to study past climates
relative dating Any method of determining whether an event or object is older or younger than other events or objects.
superposition A principle that states that younger rocks lie above older rocks if the layers ave not been disturbed.
Unconformity A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time.
Created by: unicornlover5454
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