What is the theory of continental drift?

What is the theory of continental drift?

Continental drift describes one of the earliest ways geologists thought continents moved over time. 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 is the theory of continental drift How does it explain how the continents have changed over time?

Continental drift was a theory that explained how continents shift position on Earth’s surface. Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents.

What is the theory that states that Earth’s crust and upper mantle are broken into sections?

Plate Tectonics Review

Question Answer
The theory that Earth’s crust and upper mantle are broken into sections is called plate tectonics
Plates are composed of the _______ crust and upper mantle
Plates can pull apart, collide, and move past one another
The area where a plate descends is a __________ subduction zone

What was the world’s first supercontinent?

The oldest of those supercontinents is called Rodinia and was formed during Precambrian time some one billion years ago. Another Pangea-like supercontinent, Pannotia, was assembled 600 million years ago, at the end of the Precambrian.

What is the name of the theory for the movement of continents?

The continental drift hypothesis was developed in the early part of the 20th century, mostly by Alfred Wegener. Wegener said that continents move around on Earth’s surface and that they were once joined together as a single supercontinent.

What is the theory of continental drift quizlet?

What is the theory of continental drift? Hypothesis that states that continents once formed a single land mass and broke apart and drifted to their current location.

What is the theory of plate tectonics explain it?

The theory of plate tectonics states that the Earth’s solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.