GEOL 1001 Chapter : Geology Chapter 2 Notes
Document Summary
Plate tectonics: development, theory, plate boundaries, geologic features. The great debate: strong opposition to this hypothesis, wegener incorrectly suggested that the gravitational forces of the. Moon and sun were capable of moving the continents: wegener incorrectly suggested that continents broke through the. Fossils of identical land-dwelling species on continents now separated from one another by the ocean. Post world war ii, oceanographers learned much about the seafloor: mor (mid ocean ridge, no oceanic crust older than 180 million years, sediment accumulation in the deep oceans was relatively minor. Advancements led to development of plate tectonic theory. Scientific revolution in 1960: harry hess published essay on geopoetry : mechanism for plate motion: seafloor spreading happing in. Mor explains why oceanic crust is relatively young mechanism for movement reason for sediment accumulation: by 1968, a complete model was developed. Continental drift (continents are mobile), seplates can slide beneath another plate of diff density) dense, continental = buoyant and less dense.
