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Was the theory of sea floor spreading proved?
Yes, the theory of sea floor spreading was confirmed through the discovery of mid-ocean ridges, magnetic striping patterns on the ocean floor, and the study of ages of oceanic crust. This evidence supported the idea that new crust is continually created at mid-ocean ridges and spreads away from them.
What evidence can prove that the ocean floor was moving?
Oceanic crust that was farther away from a mid-ocean ridge was older that crust closer to the ridge
Why was the discovery of no rocks older than 2billion years old on the ocean floor so important?
It is an indication that the ocean floor is moving, being created by rifting and destroyed by subduction, thus providing evidence of plate tectonics and continental drift.
What is sea floor spreading and what evidence do we have to prove it is happening?
Magnetic minerals on the ocean floor.
What is the name of the ship that collected rock samples that proved the ocean floor is younger near the mid-ocean ridge?
Glomar challenger
How a prediction and then evidence of magnetism in rocks on the ocean floor proved that the seafloor spreads?
The Earth's magnetic reversals have been recorded in newly forming oceanic seafloor basalt by the orientation of magnetic minerals which become frozen in place as the magma hardens. When the next reversal occurs, it as well becomes part of the ocean floor magnetic record.
How do scientist know that the continents are moving?
the ocean sea floor is spreading
What does produce when sea floor spreading occur?
An ocean because when the ocean spread out the ocean floor is moving and becoming large but because also of the sinking of the ocean floor it 's not becoming larger it's just maintaining it own size. lyssa
What evidence did exploration of the ocean floor reveal to further support Wegener's theory?
Exploration of the ocean floor revealed the presence of mid-ocean ridges, deep-sea trenches, and underwater mountain ranges. These features provided supporting evidence for Wegener's theory of continental drift by showing that the seafloor was in fact spreading and new crust was being formed at mid-ocean ridges. This supported the idea that the Earth's crust was not stationary but moving, as Wegener had proposed.
What is on the ocean floor if the tectonic plates are moving towards each other?
a trench
What are three types of evidence provided support for the theory of sea-floor spreading?
Magnetic striping: Patterns of alternating magnetic polarity in the rock of the ocean floor provide evidence of the seafloor moving away from mid-ocean ridges. Age of the oceanic crust: Younger rocks are found nearer to mid-ocean ridges, supporting the idea of continuous seafloor creation. Ocean drilling samples: Rock samples from the ocean floor show consistent patterns of increasing age with distance from mid-ocean ridges, supporting the theory of seafloor spreading.
Why do you think that old rocks are rare one ocean floor?
There are no rocks on the ocean floor because they turn to sand. The moving of the water gradually wears away at the rocks.
