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fossils

geologic time scale

TermDefinition
fossils remains or traces of organisms preserved from the geologic past
geologic time scale the division of earth's history into blocks of time
glaciation covered with or affected by a glacier
igneous rock rock formed by the crystallization of molten magma
paleontologist scientist who studies fossils and the history of life
phanerozoic eon part of geologic time that is represented by rocks containing abundant (lots of various) fossil evidence
precambrian eon all geologic time prior to the Phanerozoic eon
radiometric dating a complex procedure of calculating the absolute age of rocks
relative dating a form of dating by placing rocks in their proper sequence
sedimentary rock rock type that most fossils are found in
index fossil fossil remains of an organism that lived for a short time in many places, used to identify the rock or rock layer in which it was found
Created by: kcurtin
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