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The western coast of Africa and the eastern coast of South America, are of the same shape.
The line of volcanic activity (the mid-Atlantic ridge) between the continents is of this same shape, as are the series of lesser ridges on each side of this central ridge.
The easterly and westerly spreading of Iceland, which is located directly over this same ridge line.
The fossil records of the continents on both sides of the ridge are the same in terms of species and time frame.
The related location of certain geologic features, like coal deposits and other structures.
Wiki User
∙ 11y ago
Wiki User
∙ 13y ago1.) The age of the rocks- the oldest ones are found further away from the original mid-atlantic ridge.
2.) Magnetic clues. The rocks with iron in them have shown that the Earth's magnetic field has reversed itself several times. It is imprinted in the rock.
Wiki User
∙ 13y agothe answer is convergence :)
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What does seafloor spreading have to do with the theory of continental drift?
Seafloor Spreading helped move the Continents to their current location.
Why was the ocean floor surveying conducted by Harry Hess of major geological importance?
Harry Hess helped develop the idea of seafloor spreading.
Magnetic reversals have helped to support?
The reversal of the poles on a magnet, put simply.,
What do scientist think now might be possible cause of continental drift?
They think a possible cause of continental drift is because of seafloor spreading and the water currents below the continents. +++ You are sort of on the right track, but not near enough to have helped the 9 people Answers had already counted! Sea-floor spreading is part of continental drift, and the currents are not in water, but in the viscous rock Mantle.
How magneteism is used to support the theory of seafloor spreading?
During the Second World War, linear bands of positive and negative magnetic anomolies were found in the ocean floor, stretching for hundreds of miles, with an almost perfect symmetry either side of mid-ocean ridges. It was realised that these anomalies were evidence of periodic reversals of the earth's magnetic field. Molten basalt had been magnetised in the direction of the field and then cooled to 'fossilise' that direction. Each time the earth's magnetic field reversed, a stripe was added to the 'bar-code'. By dating onshore lava flows where magnetic reversals had occurred, a timescale of magnetic reversals was built up. It then became clear that, in the undersea anomalies, the youngest rocks were near the ridge, while the oldest were farther away and nearest the continents. Either side of the ridge, stripes of exactly the same age could be matched with each other. There was already evidence of continental drift, but this new evidence helped to explain how the earth's crust is moving and how the sea floor is spreading.
What does seafloor spreading have to do with the theory of continental drift?
Seafloor Spreading helped move the Continents to their current location.
Did seafloor spreading prove the theory of continental drift?
Seafloor spreading helped prove the theory of continental drift. Pangea theory also helped.
How did Alfred wegener's inventions helped us?
It helped us by creating the theory of seafloor spreading which is the proof alfred needed to complete his hypothesis
Why was the ocean floor surveying conducted by Harry Hess of major geological importance?
Harry Hess helped develop the idea of seafloor spreading.
The ways that fossils helped support the hypothesis of continental drift?
Because of sea floor spreading
Summarize the ways that fossils helped support the hypothesis of the continental drift?
Because of sea floor spreading
Magnetic reversals have helped to support?
The reversal of the poles on a magnet, put simply.,
What is the difference between subduction and seafloor spreading?
Sea floor spreading is where new oceanic crust is formed through volcanic activity and then moves away from the ridge. Subduction is when one tectonic plate moves under another tectonic plate. Hope this helped :)
What five kinds of evidence support Wegener's observation that south America was at one time joined to Africa?
Well I know 4 Rock evidence mountain belt evidence fossil evidence puzzle piece evidence Hope it helped.......
What might scientists now think might be a possible cause of continental drifts?
They think a possible cause of continental drift is because of seafloor spreading and the water currents below the continents. +++ You are sort of on the right track, but not near enough to have helped the 9 people Answers had already counted! Sea-floor spreading is part of continental drift, and the currents are not in water, but in the viscous rock Mantle.
What do scientist think now might be possible cause of continental drift?
They think a possible cause of continental drift is because of seafloor spreading and the water currents below the continents. +++ You are sort of on the right track, but not near enough to have helped the 9 people Answers had already counted! Sea-floor spreading is part of continental drift, and the currents are not in water, but in the viscous rock Mantle.
Can you put corroborating in a sentence?
Corroborating just means giving support to, or confirming. Her corroborating evidence helped the police find the real criminal.
