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Term

uniformitarianism
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fossil
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unit 4.1&4.2

TermDefinition
uniformitarianism a priciables that geologic processes that occured in the past can be explained by current geologic processes
fossil the trace or remains of an organism that lived long time ago, most commonly preserved in sedimentary rock
trace fossil a fossilized structure, such as a footprint or coprolite that formed in sedimentary rock by an anmial on or within soft
climate the weather condidtions in an area over a long period of time
ice core a long cylinder of ice obtained from drilling through ice caps por ice sheets: used to study past climate
bands layers in ice cores
relitive dating any method or detemining wheather an event or object is older tor younger that other object
superposition a princible that states that younger rcoks lieabove older rocks if layers have not been disterbed
unconformity a break in the geologic record created when rock layers are eroded o when sediment is not deposeted for e period of time
geologic column an ordered arrangment of rock layers that is based on the relative ages of the rocks adn which the oldest rocks are at the bottom
Created by: sv.18300
 

 



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