27.4 Flashcards

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1
Q

Absolute Dating

A

The process of determining an age on a specified chronology in archaeology and geology.

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2
Q

Relative dating

A

Puts geologic events in chronological order without requiring that a specific numerical age be assigned to each event.

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3
Q

Uniformitarianism

A

The idea that Earth has always changed in uniform ways and that the present is the key to the past.

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4
Q

Principles of superposition

A

The oldest pancake is at the bottom, the newest pancake is at the top.

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5
Q

Unconformity

A

Time during which no sediments were preserved in a region.

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6
Q

Fossil

A

The preserved remains of plants and animals whose bodies were buried in sediments, such as sand and mud, under ancient seas, lakes and rivers.

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