Linked pieces of lithosphere which float atop the asthenosphere.
Plate tectonics and the ocean floor quizlet.
Ocean trenches form where a plate with a leading edge of oceanic lithosphere collides with another plate.
The process by which the ocean floor sinks beneath a deep ocean trench and back into the mantle is known as answer choices.
Pertaining to building is a scientific theory describing the large scale motion of seven large plates and the movements of a larger number of smaller plates of earth s lithosphere since tectonic processes began on earth between 3 3 and 3 5 billion years ago.
Tectonicus from the ancient greek.
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All this evidence both from the ocean floor and from the continental margins made it clear around 1965 that continental drift was feasible and the theory of plate tectonics which was defined in a series of papers between 1965 and 1967 was born with all its extraordinary explanatory and predictive power.
The features mapped on the ocean floor disproved continental drift.
A mid ocean ridge or mid oceanic ridge is an underwater mountain range formed by plate tectonics.
Most plate boundaries are under the ocean.
Plate tectonics and the ocean floor.
Why was the mapping of the ocean floor such an important step in the development of plate tectonic theory.
Start studying oceanography chapter 2.
In these situations an oceanic plate normally subducts into the mantle forming a topographic low on the ocean floor.
The ocean floor had tracks from the continents.
This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the.
According to the theory earth has a rigid outer layer known as the lithosphere which is typically about 100 km 60 miles thick and overlies a plastic moldable partially molten layer called the asthenosphere the lithosphere is broken up into seven very large continental and ocean sized plates six or seven medium sized regional.
9th 12th grade.
Plate tectonics from the late latin.
Nobody had known how deep the oceans were.
Earth s magnetic field.
The concept of plate tectonics was formulated in the 1960s.
