Relative Dating - Determining whether an object, or event, is older or younger than other objects, or events., Law of Superposition - Principle that states that younger rocks lie above older rocks if the layers have not been disturbed, Tilting of Rock - When Earth's forces move rock layers up or down evenly, Folding of Rock - The bending of rocks that can happen when rock layers are squeezed together, Fault - A break or crack in Earth's crust where rocks have moved, Intrusion - Igneous rock that forms when magma is injected into rock and then cools and becomes hard, Unconformity - A break in the geologic record that is made when rock layers are eroded or when sediment is not deposited for a long period of time.is made when rock layers are eroded or sediment is not deposited for a long, Law of Crosscutting - States that a fault or a body of rock, such as an intrusion, must be younger than any feature or layer of rock that the fault or rock body cuts through., Fossils - Traces or remains of an organism that lived long ago, most commonly preserved in sedimentary rock, Geologic Column - An ordered arrangement of rock layers that is based on the relative ages of the rocks, with the oldest rocks at the bottom of the column, Index Fossil - any animal or plant preserved in the rock record of the Earth that is easily recognizable, abundant, and have a wide geographic distribution and a short-range through time., Uniformitarianism - States the geologic processes that happened in the past can be explained by current geologic processes, Catastrophism - the theory that the Earth has largely been shaped by sudden, short-lived, violent events, possibly worldwide in scope.,

Relative Dating

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