Asked by: Crystal Ammar
Asked in category: science, geology
Last Updated: 2nd May 2024
Quizlet: What causes continental drift?
Earth's plates move because of convection currents in its mantle. Plates can slide past one another, collide with each other, or move away. How can fossils be used to prove a continental shift? The MANTLE's convection currents cause Earth's plates and other fluids to move.
So, what is continental drift quizlet exactly?
continental drift. This hypothesis states that once the continents were one landmass, they broke up and drifted to their current locations.
What are scientists thinking about the possible causes of continental drift? Wegener suggested that the Earth's rotation might have caused the continents shift in the opposite direction. (It doesn't.) We know today that the continents are supported by huge slabs of rock known as tectonic plates. Plate tectonics is a process in which plates interact and move.
Afterwards, you might also wonder, "What are five pieces of evidence that support continental drift?"
Theory of the Continental Drift
- Climate. Puzzle-like fit of continental shelves. Ex.
- Rocks.
- Fossils. Ex. There are coal beds in North America and Great Britain. The same period saw deposits in Belgium and North America.
- Coal Beds. Fossilized trees found in coal beds that used to grow in temperate regions, but are now in a polar climate.
- Continents are like Puzzle Pieces.
Quiz: How is continental drift and plate-tectonics related?
The theory of continental drift claims that the entire world is made up of one continent. According to the theory of plate-tectonics however, the earth's surface can be broken down into a variety of shifting plates and slabs.
17 Related Question Answers Found
What is the theory of continental drift?
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 main reason continental drift was not accepted?
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 are plate tectonics related to continental drift?
The difference between continental drift and plate tectonics is that the theory of continental drift states that the world was made up of a single continent. The theory of plate-tectonics, on the other hand, states that earth's surface is broken into numbers of shifting plates or slabs.
What is the major difference between continental drift and plate tectonics quizlet?
Terms in this set (11) What are the differences between Continental Drift and Plate Tectonics? Continental drift believes that the continents moved because the magnetism of the sea floor. Plate tectonics believes that the lithosphere & the asthenosphere of the continents caused them to move.
How do the continental coastlines support the theory of continental drift?
Continental Coastlines appearing to fit together,Fossil Distrubution, By having matching patterns it indicates that the two continents and their rocks were at one time one continent. How does coal distribution support the Theory of Continental Drift? Coal normally forms in warm, wet climates.
Who proposed the concept of continental drift quizlet?
Alfred Wegener proposed the concept of continental drift. (1b)According to the concept of continental drift, how would a world map have changed over the last 250 million years? Before, all of the continents ere one big land mass, but now, each continent is spread apart.
When an oceanic plate and a continental plate collide what is the resulting feature?
in geology, +35 years work experience in exploration and mining geology. Typically, when an oceanic and a continental plate collide, the oceanic plate buckles and begins to subside beneath the continental plate (which is less dense, and thicker).
What is Pangea quizlet?
Pangea. A supercontinent containing all of Earth's land that existed about 225 million years ago. Plate Tectonics. The theory scientists use to explain the movements of plates on the Earth's surface. Convergent Boundaries.
What are three pieces of evidence for continental drift?
In the early part of the 20th century, scientists began to put together evidence that the continents could move around on Earth's surface. 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.
What are 4 pieces of evidence for continental drift?
Four fossil examples include: the Mesosaurus, Cynognathus, Lystrosaurus, and Glossopteris.
What are the 6 pieces of evidence for the theory of continental drift?
What are six pieces of evidence for the continental drift theory? Reptile Fossils- dinosaurs couldn't have swam across a vast ocean. Plant Fossils- all these regions were once connected and had similar climates. Tropical plants found in Arctic- tropical plants can't grow in cold climates.
How does Mesosaurus support continental drift?
For this reason, the existence of Mesosaurus helps support the theory of continental drift; that is, the now-well-attested fact that South America and Africa were joined together into the giant continent Gondwana 300 million years ago before the continental plates supporting them broke apart and drifted into their
How does seafloor spreading support continental drift?
Seafloor spreading helps explain continental drift in the theory of plate tectonics. When oceanic plates diverge, tensional stress causes fractures to occur in the lithosphere. At a spreading center, basaltic magma rises up the fractures and cools on the ocean floor to form new seabed.
What supports continental drift?
Increased knowledge about the configuration of the ocean floor and the subsequent formulation of the concepts of seafloor spreading and plate tectonics provided further support for continental drift.
Why does seafloor spreading occur?
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor. Eventually, the crust cracks.
When was Continental Drift accepted?
The speculation that continents might have 'drifted' was first put forward by Abraham Ortelius in 1596. The concept was independently and more fully developed by Alfred Wegener in 1912, but his theory was rejected by many for lack of any motive mechanism.
Who came up with seafloor spreading?
Harry H. Hess
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