Relative dating determining the sequence of geologic events

-Similarity of rock type- 2 rocks similar from different places, may be the same.-Position in a sequence of rock- more than 1 layer is similar in rocks from different places.Relative dating is a dating method that used to determine determine the relative ages of geologic strata, artifacts, historical events, etc.This technique does not give specific ages to items.Geologists have divided the Earth's history into Eras -- broad spans based on the general character of life that existed during these times -- and Periods -- shorter spans based partly on evidence of major disturbances of the Earth's crust.The "relative" positions of layers and fossils to assign estimated dates to strata.

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Make your own flashcards that can be shared with others.After the uplift of the land, the forces of erosion attacked the highlands and the eroded rock debris was transported and redeposited in the lowlands.During the same interval of time in another part of the world, the land surface subsided and was covered by the seas.Uniformitarian geologists began using the principles of stratigraphy to assign dates to the layers of the geological column fossils back in the late 1700s.Relative dating uses a combination of fossil studies and structural interpretation to draw conclusions about the geological history of an area.

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