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Relative Dating

TermDefinition
fault a break in Earth's crust
extrusion a hardened layer of lava on Earth's surface
unconformity the surface where new rock layers meet a much older rock surface beneath them
relative age the age of rocks compared with the age of other rocks
law of superposition the way to determine relative ages of rock
instrusion a hardened layer of magma beneath Earth's surface
absolute age the number of years since a rock has formed
index fossil fossils used to help geologists match rock layers
Created by: ahabtem1
Popular Earth Science sets

 

 



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