Your question: How well do South America and Africa fit together?

The east coast of South America and the west coast of Africa seem to fit together like pieces of a jigsaw puzzle, and Wegener discovered their rock layers “fit” just as clearly. South America and Africa were not the only continents with similar geology.

Why do South America and Africa seem to fit together?

Wegener suggested that the continents were all together in the geologic past, forming the supercontinent Pangaea. … By 160 million years ago, continents had begun to drift to their present locations. Today’s coastlines of South America and Africa are a match because these two continents were once joined together.

How South America and Africa moved compared to each other?

South America and Africa were once together, but were split apart by the formation of a diverging plate boundary. This is confirmed by matches between the rocks and fossils of the two continents. Plate motion, not continents drifting, explains this. The two continents are still moving away from each other today.

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Did the edges of the continents fit together?

1. If the continental boundaries of Africa and South America are defined as the edge of the continental shelf, then the continents fit together even better than at the coastlines.

How all the continents fit together?

The continents fit together like pieces of a puzzle. … Alfred Wegener proposed that the continents were once united into a single supercontinent named Pangaea, meaning all earth in ancient Greek. He suggested that Pangaea broke up long ago and that the continents then moved to their current positions.

Why does Pangea not fit perfectly?

Answer. There are several reasons due to which the present shapes of the continents will not fit perfectly into a super continent. The main reason can be attributed to erosion and rise and fall of the water levels. … this never allows the continents to remain in the shape in which they were separated from one another …

What evidence proved that South America and Africa were once connected?

To him, the presence of identical fossil species along the coastal parts of Africa and South America was the most compelling evidence that the two continents were once joined.

Why did Pangea break up?

During the Triassic Period, the immense Pangea landmass began breaking apart as a result of continental rifting. A rift zone running the width of the supercontinent began to open up an ocean that would eventually separate the landmass into two enormous continents.

Did South America fit into Africa?

The east coast of South America and the west coast of Africa seem to fit together like pieces of a jigsaw puzzle, and Wegener discovered their rock layers “fit” just as clearly. South America and Africa were not the only continents with similar geology.

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Why did no one believe Wegener’s theory?

The main reason that Wegener’s hypothesis was not accepted was because he suggested no mechanism for moving the continents. He thought the force of Earth’s spin was sufficient to cause continents to move, but geologists knew that rocks are too strong for this to be true.

How does Pangea fit together?

Pangea was formed through years and years of landmass formation and movement. … After a while, the Angaran continent (near the North Pole) began to move south and merged with the northern part of the growing Euramerican continent, forming the supercontinent that came to be known as Pangea.

What are 3 pieces of evidence for Pangea?

Alfred Wegener, in the first three decades of this century, and DuToit in the 1920s and 1930s gathered evidence that the continents had moved. They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.

What do you notice about South America and Africa coastlines?

In the early 1900s, the German scientist Alfred Wegener noticed that the coastlines of Africa and South America looked like they might fit together. He also discovered evidence that the same plant and animal fossils were found along the coasts of these continents, although they were now separated by vast oceans.

How did the Earth fit together?

The universe grew and cooled and eventually stars and galaxies formed. The Earth was formed about 4.6 billion years ago, that’s 4,600,000,000 years ago. It was formed by collisions of particles in a large cloud of material. Slowly gravity gathered together all these particles of dust and gas and formed larger clumps.

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How well do the continents fit together is it a perfect fit explain?

The continents generally fit well together. … It is not a perfect fit, but the continents have also had (small) changes, that would make it impossible for it to have a perfect fit today. c. Think about how the landmasses got from where they were to where they are today.

Are continents floating?

The continents do not float on a sea of molten rock. … Under the continents is a layer of solid rock known as the upper mantle or asthenosphere. Though solid, this layer is weak and ductile enough to slowly flow under heat convection, causing the tectonic plates to move.

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