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Hannah's review

study guide for final

QuestionAnswer
distinctive fossil used to compare the relative ages of fossils Index fossil
The ____________ is an ideal sequence all known of rock formations and fossils. Geologic column
a principle that states that geologic processes that occured in the past can be explained by current geologic processes uniformitarianism
a principle that states that geologic change happens suddenly catastrophsm
the man who wrote the Theory of the Earth and came up with the idea of uniformitarianism James Hutton
the man who reintroduced uniformitarianism and wrote the Principles of Geology Charles Lyell
the scientific study of fossils paleontology
any method of determining whether an event or object is older or younger than other events or objects relative dating
a principle that states that younger rocks lie above older rocks if the layers have not been disturbed superposition
a break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time uncomformity
the most common type of uncomformity; found where part of a sequence of parallel rock layers is missing discomformity
found where horizontal sedimentary rocks lie on top of an eroded surface of older intrusive igneous or metamorphic rock noncomformity
found between horizontal layers of sedimentary rock and layers of rock that have been tilted or folded angular uncomformity
any method of measuring the exact age of an event or object in years absolute dating
an atom that has the same number of protons but a different number of neutrons isotope
Created by: hannah23
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