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Chapter 10 stack
Term | Definition |
---|---|
Fossils | The preserved remains of an organism |
Catastrophism | The idea that thing and organisms will change because quick and violent event. |
uniformitarianism | This states that this same geologic process of today is similar to those in the past |
carbon fossil | The fossilized carbon outline of an organism |
mold | The impression of an organism on a rock |
cast | A fossil copy of an organism made with the with the mold of an organism filled with sediment. |
trace fossil | The preserved evidence of an action of an organism |
paleontologist | A person who studies fossil and the environments they live in |
Relative age | The age of a rock by referencing others |
Superstition | The principal in undistributed rock layers the oldest rock are on the bottom unless disturbed . |
Inclusions | when a rock contains pieces of other rock |
Unconformity | A surface where rock eroded away producing a gap in the rock record |
correlation | connecting rock layers by stepping on there formations |
absolute age | The numerical age in years of a rock or object. |
isotopes | atoms of the same element that have different numbers of neutrons |
Radioactive decay | The process in witch an unstable element changes to a stable element . |
half-life | required for half of isotopes decay in to daughter isotopes |