Which evidence supports the theory of the ocean floor spreading? What is an ocean basin? What is the top of the ocean called? Name two major regions of the ocean floor How much of the ocean floor has been explo
Seafloor Spreading Theory | Definition, Diagram & Evidence from Chapter 7 / Lesson 13 160K Learn what seafloor spreading is, who discovered it, and how it explains the movement of continents and plates. Learn about the evidence for seafloor spreading and analyze diagrams that illustrate it. ...
Uncontroversial plate motions based on seafloor spreading data were also used to test the results of the biogeographical and palaeomagnetic analyses. Results The distributions of Cretaceous terrestrial taxa, mostly dinosaurs, imply direct, continental connections between Australia and East Asia, East Asia...
The continental drift theory states the movement of tectonic plates, which drift apart from the land which sits on top, is the cause for this shift. When the land spread apart, it formed individual smaller landmasses known as continents. Continental drifts are caused by the spreading of the ...
Geology defines “plate” as a large slab of solid rock, and “tectonics” is part of the Greek root word for “to build.” Together the words define how the Earth’s surface is built up of moving plates. The theory of plate tectonics dictates that individual plates, broken down into ...
Seafloor Spreading Lesson Plan Causes of Tectonic Plate Movement Lesson Plan Continental Collision | Definition & Examples Continental and Oceanic Crust | Density & Boundaries Divergent Boundary: Definition & Examples Transform Fault Definition, Types & Examples Create an account to start this course today...
Is it just coincidence that the coastlines fit together well? Is it possible that the continents were actually together sometime in the past? Wegener’s Continental Drift Hypothesis One scientist who looked at the pieces of this puzzle was Alfred Wegener (VAY guh nuhr). In the early 1900s, ...
This explains what is plate tectonics theory of divergent boundaries. Atlantic Ocean is a divergent boundaryThe continents on each side of the Atlantic Ocean have been drifting apart forming new seafloor in the Atlantic Ocean basin for millions of years. The rate the African Plate and the South ...
And why is it spreading? Student: Well, the seafloor is split. There is a ridge, a mountain range that runs north and south there.And the rock material flows up from Earth's interior here, at the split, which forces the two sides of the ocean floor to spread apart, to make room ...
But the discovery of seafloor spreading disproved a part of Wegener's theory, because it wasn't just the continents that were moving through static oceans, as he had originally thought, but rather entire tectonic plates, consisting of the continents, ocean floors, and parts of the upper mantle...