Theory of Plate tectonics
- Created by: KayathrieJ
- Created on: 08-12-15 10:48
Fullscreen
Development of the theory
Mid-Atlantic ridge was discovered and then a similiar feature was discovered in the Pacific ocean. Examination of the ocean crust on either side of the Mid-atlantic ridge suggested sea floor spreading. Sea floor spreading is when new ocean crust is formed due to volcanic activity and it gradually spreads away. The evidence for this is the alternatiing polarity found in rocks which form the…
Comments
No comments have yet been made