They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils .
What are the evidences of continental drift?
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?
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 .
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.
What are the four pieces of evidence for continental drift quizlet?
List four pieces of evidence for Wegener’s hypothesis of continental drift? Continents fit like a puzzle, climate clues, fossil clues, and rock layers or formations . What was the name of the reptile that Wegners found in both South America and Africa?
What is Alfred Wegener theory?
Alfred Wegener in Greenland. Plate tectonics is the theory that Earth’s land masses are in constant motion . The realization that Earth’s land masses move was first proposed by Alfred Wegener, which he called continental drift. ... But the continents actually are shifting, very slowly, relative to one another.
What is an example of continental drift?
The North American and Eurasian tectonic plates, for example, are separated by the Mid-Atlantic Ridge . The two continents are moving away from each other at the rate of about 2.5 centimeters (1 inch) per year. Rift valleys are sites where a continental landmass is ripping itself apart.
What is the evidence for continental drift and plate tectonics?
Modern continents hold clues to their distant past. Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together.
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 is some evidence of Pangea?
Glacial deposits, specifically till, of the same age and structure are found on many separate continents that would have been together in the continent of Pangaea. Fossil evidence for Pangaea includes the presence of similar and identical species on continents that are now great distances apart .
What evidence supports the theory of continental drift quizlet?
Fossils of same creature have been found on different continents that are separated today but were once joined . For example. a 20 cm Mesosaurus reptile could not have swam 3000 miles across and ocean. It’s more likely the continents were together and over 40 million years it walked.
Which of the following answers is evidence for continental drift except?
Wegener used all the following to provide evidence for continental drift except : age of selected continental rocks .
What are the four types of plate boundaries?
- Convergent boundaries: where two plates are colliding. Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. ...
- Divergent boundaries – where two plates are moving apart. ...
- Transform boundaries – where plates slide passed each other.
What evidence did Alfred use?
He used fossil evidence , such as that of tropical plants found on the Arctic island of Spitzbergen. He found large-scale geographic features that matched, like the Appalachian Mountains in the United States and the Scottish Highlands, as well as rock strata in South Africa that matched those in Brazil.
What are the evidences of plate movements?
There is variety of evidence that supports the claims that plate tectonics accounts for (1) the distribution of fossils on different continents , (2) the occurrence of earthquakes, and (3) continental and ocean floor features including mountains, volcanoes, faults, and trenches.
How many continental plates are there?
how many tectonic plates are there? There are major, minor and micro tectonic plates. There are seven major plates : African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American.
