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1. Absolute plate motions can be derived for recent movements via: 2. Lord Kelvi

ID: 291719 • Letter: 1

Question

1. Absolute plate motions can be derived for recent movements via: 2. Lord Kelvin predicted the age of the Earth based on heat flow. A factor that caused his age to be too young is and one that caused it to be too old is 3. Two methods that use reactors in geochronology are fission track and 4. The point at which remnant magnetization disappears as temperature increase is the temperature. 5. The most damaging seismic waves to buildings are 6. A wave that passes through the mantle as an S-wave, through the outer core as a P-wave, and back through the mantle as an S-wave is labelled and . Two approaches to seismic profiling are surveys 8. The theory used to explain the origin and general character of earthquake sources

Explanation / Answer

1.Reference frame

2. Radioactivity and convection

3. Nuclear Reactor.

4. Curie temperature.

5. Surface Waves: Rayleigh Waves.

7. Vertical and Crosswell seismic seismic profiling.

8. Elastic Rebound Theory.