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science 3-3

QuestionAnswer
principle of superposition states that in undisturbed layers of rock, the oldest rocks are on the bottom and the rocks become younger towards the top
relative age somethings age in comparision to the ages of other things
how do geolostics determine the relative age geologists determine the relative age of rocks and other structures be examining their places in a sequence
unconformities gaps in a rock sequence
how do unconformites develop unconformites develop when agents of erotion remove rock layers by washing or scraping them away ex:running water or glaciers
3 steps of angular unconformity 1 layers of sedimentary rock are tilted and uplifted 2 exposed rock erodes 3 sedimentary layers are deposited on top
3 steps of disconformity 1 Sedimentary rock is exposed 2 exposed rock erodes 3 sedimentary layers are deposited on top
3 steps ofnonconformity metamorphic or igneous rocks are uplifted 2 exposed rock erodes 3 sedimentary layers are deposited on top
Created by: kmm0602
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