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 are the evidence of the 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 is the evidence for Wegener’s theory of continental drift quizlet?
The Theory of Continental Drift was proposed by Alfred Wegener in 1912. He used several pieces of evidence to support his theory including fossils, rocks, glacial markings, coal deposits and the fact that the continents fit together like a jigsaw puzzle. .
What is one piece of evidence that Wegener used to prove continental drift quizlet?
One of Alfred Wegener's pieces of evidence for continental drift was data from the seafloor. Wegener used fossil ferns to suggest that a supercontinent existed about 250 million years ago. Glacial grooves in rocks in Africa suggest that this continent was once located in a much colder place.
What is the evidence for 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.
What was Wegener’s evidence for his theory?
Wegener supported his theory by demonstrating the biological and geological similarities between continents. South America and Africa contain fossils of animals found only on those two continents, with corresponding geographic ranges.
What three evidence supports Wegener’s theory?
The Theory of Continental Drift was proposed by Alfred Wegener in 1912. He used several pieces of evidence to support his theory including fossils, rocks, glacial markings, coal deposits and the fact that the continents fit together like a jigsaw puzzle. .
What evidence was discovered and used to help support the theory of continental drift?
Fossils of similar organisms across widely disparate continents encouraged the revolutionary theory of continental drift. Continental drift describes one of the earliest ways geologists thought continents moved over time. Today, the theory of continental drift has been replaced by the science of plate tectonics.
What evidence did Wegener find for Pangaea quizlet?
Wegener showed that certain types of rocks on the continents would match with others in another continent. What did Wegener realize about the oldest rocks on the Afircan and South American continents? That they were connected together when the continents were arranged to form Pangaea.
What evidence supports Alfred’s theory?
fossil evidence Alfred Wegener collected diverse pieces of evidence to support his theory, including geological “fit” and fossil evidence.
What was Wegener’s evidence for continental drift quizlet?
The Theory of Continental Drift was proposed by Alfred Wegener in 1912. He used several pieces of evidence to support his theory including fossils, rocks, glacial markings, coal deposits and the fact that the continents fit together like a jigsaw puzzle. .
How did Wegener discover continental drift?
Searching for evidence to further develop his theory of continental drift, Wegener came across a paleontological paper suggesting that a land bridge had once connected Africa with Brazil.
What was Wegener’s first piece of evidence?
Wegener's first piece of evidence was that the coastlines of some continents fit together like pieces of a jigsaw puzzle. People noticed the similarities in the coastlines of South America and Africa on the first world maps, and some suggested the continents had been ripped apart (3).
What evidence supports Wegener’s continental drift hypothesis quizlet?
What evidence supported the hypothesis of continental drift? How did fossils provide evidence for continental drift? Similar fossils occur on different continents. Because many of these organisms could not have crossed an ocean, this provides evidence that the continents were once connected.
How did Alfred Wegener discover continental drift?
Wegener noticed the similarity in the coastlines of eastern South America and western Africa and speculated that those lands had once formed a supercontinent, Pangaea, which had split and slowly moved many miles apart over geologic time.
What are Wegener’s three observations?
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 evidence supports the idea that all the continents were once joined together?
Fossil Evidence 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. For example, fossils of Mesosaurus, a freshwater reptile, have been found both in Brazil and western Africa.
What are the 3 types of boundaries?
Tectonic Plates and Plate Boundaries
- There are three main types of plate boundaries:
- Convergent boundaries: where two plates are colliding.
- Divergent boundaries – where two plates are moving apart.
- Transform boundaries – where plates slide passed each other.
What are some examples of evidence that suggest that some continents were once joined and have since separated?
Fossil Evidence 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. For example, fossils of Mesosaurus, a freshwater reptile, have been found both in Brazil and western Africa.
What forms the basis of Wegener’s continental drift theory?
The theory deals with the distribution of the oceans and the continents. According to Wegener's Continental Drift theory, all the continents were one single continental mass (called a Super Continent) – Pangaea and a Mega Ocean surrounded this supercontinent. The mega ocean is known by the name Panthalassa.
What evidence did Wegener use to develop the continental drift theory?
Wegener supported his theory by demonstrating the biological and geological similarities between continents. South America and Africa contain fossils of animals found only on those two continents, with corresponding geographic ranges.
What are the 4 types of plate movements?
What are the major plate tectonic boundaries?
- Divergent: extensional; the plates move apart. Spreading ridges, basin-range.
- Convergent: compressional; plates move toward each other. Includes: Subduction zones and mountain building.
- Transform: shearing; plates slide past each other. Strike-slip motion.
What are the 4 different plate boundaries?
There are four main types of plate boundary. These are constructive, destructive, conservative and collision margins.
What is one piece of evidence for continental drift explains why we find ancient reefs in cold climates?
Wegener discovered ancient coal seams and coral reef fossils in areas that are much too cold today. Wegener thought that ancient coral and coal plants existed at about the same latitude where they are found today.
What are the 4 plate boundaries and how do they move?
Divergent boundaries — where new crust is generated as the plates pull away from each other. Convergent boundaries — where crust is destroyed as one plate dives under another. Transform boundaries — where crust is neither produced nor destroyed as the plates slide horizontally past each other.
What are the different pieces of evidence for plate movement?
Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed. Some life "rode" on diverging plates, became isolated, and evolved into new species.
What is the climate evidence for continental drift?
Wegener used evidence from climate change to further support his theory. For example, an island in the Arctic Ocean contains fossils of tropical plants. According to Wegener, the island once must have been located close to the equator. Wegener also pointed to scratches on rocks made by glaciers.
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 4 main plate boundary types?
Plate Boundaries and Hotspot Demonstration
- Divergent Plate Boundary. Volcanic eruptions and shallow earthquakes are common where plates rip apart.
- Convergent Plate Boundary. …
- Transform Plate Boundary. …
- Hotspot.
Feb 11, 2020
What are the 4 main plate boundaries?
There are four main types of plate boundary. These are constructive, destructive, conservative and collision margins.