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fossils706 2b

facts about fossils

QuestionAnswer
relative age something is its age in comparison to the ages of other things
unconformities gaps in rock sequences
absolute age age in years od rock or other object
radioactive decay process in which some isotopes break down into other isotopes and particles
half life time it takes for half the atoms of an isotopes to decay
radiometric dating calculate the absolute age of rock by measuring the ratio of parent isotope to daughter product in a mineral and knowing a half life of a parent
uniformitarianism priciple stating that earths processes occuring today are similar to those that occured in the past
Created by: Aku&Azka
Popular Earth Science sets

 

 



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