27.4 Flashcards
1
Q
Absolute Dating
A
The process of determining an age on a specified chronology in archaeology and geology.
2
Q
Relative dating
A
Puts geologic events in chronological order without requiring that a specific numerical age be assigned to each event.
3
Q
Uniformitarianism
A
The idea that Earth has always changed in uniform ways and that the present is the key to the past.
4
Q
Principles of superposition
A
The oldest pancake is at the bottom, the newest pancake is at the top.
5
Q
Unconformity
A
Time during which no sediments were preserved in a region.
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.
