How does the jigsaw puzzle fit support the idea of continents being together?

As new land is produced at the mid-Atlantic ridge, old land is being subducted at our continental borders. The theory of continental drift simply stated that continents drifted from one location to another over time. Wegener noticed that the coasts of South America and Africa seemed to fit together like a puzzle.

What is evidence the continental jigsaw puzzle?

They cited as evidence fossils of identical animals that had lived in both areas simultaneously hundreds of millions of years ago. The Atlantic coasts of Africa and South America appear to fit together neatly, like the pieces of a jigsaw puzzle.

What is the evidence from the fit of the continents?

The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.

Why did Wegener think that the Antarctic continent had been closer to the equator in the geologic past *?

Why did Wegner think that the Antarctic continent had been closer to the equator in the geologic past? Wegener’s hypothesis that the continents were joined as a single landmass, called pangaea, that broke apart about 200 million years ago and slowly moved to their present positions.

What is jigsaw puzzle fit?

The similarity in outline of the coastlines of eastern South America and West Africa had been noted for some time. The best fit is obtained if the coastlines are matched at a depth of 1,000 metres below current sea level.

How do evidences of continental drift and seafloor spreading prove that the plates move?

The seafloor’s permanent magnetic signatures showed that new ocean crust was created at the ridge crests and then spread outward in both directions. Tuzo Wilson, combined the continental drift and seafloor spreading hypotheses to propose the theory of plate tectonics.

How did Wegener explain the fit of the continents?

The theory of continental drift is most associated with the scientist Alfred Wegener. In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting” across the Earth, sometimes plowing through oceans and into each other.

What are 5 pieces of evidence that support continental drift?

The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones’ locations.

How does climate change evidence support the theory of plate tectonics?

Movement of plate tectonics causes a change in the ocean currents and in turn generates more heat. Conclusively plate tectonic movement result in a change in climate though the rate is slow.

What is the most visible evidence that these continents were once connected?

Fossil Evidence One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Fossils of similar types of plants and animals in rocks of a similar age have been found on the shores of different continents, suggesting that the continents were once joined.

What did Alfred Wegener notice about the outlines of the continents?

What is Alfred Wegener notice about all the outlines of the continents? All the continents fit together like a puzzle. What was Pangaea? What is Continental Drift?

How did we know the continents were connected?

The first clue that continents were all connected is how they fit like a jigsaw puzzle Like a jigsaw puzzle, the Earth’s crust has 15 or 20 separate pieces of minor and major plate tectonics. These pieces are the plate tectonics that rides on the soft melted rock underneath. All continents were together as a supercontinent (Pangaea).

What did Wegener call the movement of the continents?

He called this movement continental drift. Wegener was convinced that all of Earth’s continents were once part of an enormous, single landmass called Pangaea . Wegener, trained as an astronomer, used biology, botany, and geology describe Pangaea and continental drift.

How did the continents move apart over time?

All continents were together as a supercontinent (Pangaea). Over time, these continents have broken apart and moved apart through continental drift. But it wasn’t until we started exploring beneath the oceans until we realized the vast chains of mountains on the ocean seafloor.

Which scientist most associated with the theory of continental drift?

The theory of continental drift is most associated with the scientist Alfred Wegener. In the early 20th century, Wegener published a paper explaining his theory that the continental landmass es were “drifting” across the Earth, sometimes plowing through oceans and into each other. He called this movement continental drift.