Reading assignment Flashcards
1
Q
the idea that Earth’s surface and landscape can largely be explained by sudden, short lived, and violent events
A
Catastrophism
2
Q
Person who proposed catastorphism
A
Georges Cuvier
3
Q
Catastrophism is based on
A
- Paleontological evidence in paris basin
- fossil record
4
Q
The idea that Earth has always changed in uniform ways and that the present is the key to the past
A
Uniformitarianism
5
Q
Proposed uniformitarianism
A
James Hutton along with Charles Lyell
6
Q
the “calendar” for events in Earth history
A
Geologic time scale
7
Q
Eon division of geologic time scale
A
- Hadean
- Archean
- Proterozoic
- Phanerozoic
8
Q
5 groups in geologic time scale
A
- Eons
- Eras
- Periods
- Epochs
- Ages
9
Q
calculates an age in years for geologic materials
A
Radiometric dating
10
Q
How does radiometric dating works
A
- by measuring the presence of a short-life radioactive element
11
Q
example of radioactive element used in radiometric dating
A
- carbon-14,
- or a long-life radioactive element plus its decay product,
- e.g., potassium-14/argon-40
12
Q
Who carried out radiometric dating
A
Ernest Rutherford in 1905
