what observation led alfred wegener to develop the hypothesis of continental drift


What Observation Led Alfred Wegener To Develop The Hypothesis Of Continental Drift?

Wegener also noticed that if you could shove western Europe and Africa together with North and South America, their coastlines would fit together very neatly. All this evidence led Wegener to believe that the continents were once connected but had separated and drifted apart.

Why was Alfred Wegener’s hypothesis for continental drift?

Alfred Wegener suggested that continental drift occurred as continents cut through the ocean floor, in the same way as this icebreaker plows through sea ice. Wegener put his idea and his evidence together in his book The Origin of Continents and Oceans, first published in 1915.

What did Alfred Wegener observe that led to his theory of Pangea?

What were Alfred Wegener’s contributions? 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.

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How did Alfred Wegener prove 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.

How did Alfred Wegener explain the movement of continents?

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. … He called this movement continental drift.

Who was Alfred Wegener And what did he theorize?

Alfred Wegener was a German meteorologist who achieved fame for his theory of continental drift. This was a theory he put forth in 1912 that the continents had not always been in their present locations, but instead, drifted across the ocean towards and away from each other.

What do you know about Pangea?

Pangea, also spelled Pangaea, in early geologic time, a supercontinent that incorporated almost all the landmasses on Earth. Pangea was surrounded by a global ocean called Panthalassa, and it was fully assembled by the Early Permian Epoch (some 299 million to about 273 million years ago).

What was the response to Wegener’s hypothesis?

The main problem with Wegener’s hypothesis of Continental Drift was the lack of a mechanism. He did not have an explanation for how the continents moved. His attempt to explain it using tides only made things worse. But both Galileo and Darwin had serious flaws in their theories when they were first presented.

What evidence did Wegener rely on in the formulation of his theory of continental drift What evidence did he lack?

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.

Which of these pieces of evidence did Alfred Wegener cite to support his hypothesis of continental drift?

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?

When did Alfred Wegener propose his theory?

In November 1926 Wegener presented his continental drift theory at a symposium of the American Association of Petroleum Geologists in New York City, again earning rejection from everyone but the chairman. Three years later the fourth and final expanded edition of “The Origin of Continents and Oceans” appeared.

What is used by Alfred Wegener for support his theory?

Wegener used fossil evidence to support his continental drift hypothesis. The fossils of these organisms are found on lands that are now far apart. Grooves and rock deposits left by ancient glaciers are found today on different continents very close to the equator.

Where did Alfred Wegener do his research?

In 1905 Wegener went to work at the Royal Prussian Aeronautical Observatory near Berlin, where he used kites and balloons to study the upper atmosphere. He also flew in hot air balloons; indeed, in 1906 he and his brother Kurt broke the world endurance record by staying aloft for more than 52 hours.

What do you know about the continental drift theory?

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.

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What did Wegener think had happened to this supercontinent?

His widely accepted theory of land displacement holds that Earth’s continents have been in motion throughout geologic time. Wegener believe that there was once a single supercontinent, which he called Pangea (or Pangaea). He said that Pangea broke apart millions of years ago to form two large continents.

What is Pangea and why is it important to the theory of evolution?

Pangea is important because it once connected all of the continents, allowing animals to migrate between land masses that would be impossible today. …

What evidence supports Wegener’s hypothesis?

Fossils also provided evidence to support Wegener’s theory. A fossil is any trace of an ancient organism preserved in rock. The fossils of the reptiles Mesosaurus and Lystrosaurus and a fernlike plant called Glossopteris have been found on widely separated landmasses.

What evidence supported Wegener’s hypothesis 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. .

Which observations supported Alfred Wegener’s theory of continental drift during his lifetime choose more than one answer?

What evidence did Wegener gather and study to support his hypothesis? He studied land features. Wegener examined land features such as the margins of the continents, mountain belts, rock layers, and mineral deposits and matched these features with similar features found on other continents.

Which explanation provide support for continental drift theory?

Which explanation provides support for continental drift theory? Coal fields match up across continents. What name did Wegener give to the single large landmass composed of all continents?

What was Alfred Wegener known for?

Wegener was a German meteorologist, geophysicist and polar researcher. In 1915 he published ‘The Origin of Continents and Oceans’, which outlined his theory of Continental Drift. Wegener was a member of four expeditions to Greenland.

What discoveries did Alfred Wegener make?

Lived 1880 – 1930.

Alfred Wegener proposed the theory of continental drift – the idea that Earth’s continents move. Despite publishing a large body of compelling fossil and rock evidence for his theory between 1912 and 1929, it was rejected by most other scientists.

How important is the continental drift theory of Alfred Wegener to the formulation of the plate tectonics theory?

continental drift, large-scale horizontal movements of continents relative to one another and to the ocean basins during one or more episodes of geologic time. This concept was an important precursor to the development of the theory of plate tectonics, which incorporates it.

What are the 4 evidences of 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 did Wegener think the Himalayas formed?

Wegener said they formed when the edge of a drifting continent crumpled and folded—as when India hit Asia and formed the Himalayas. … By his third edition (1922), Wegener was citing geological evidence that some 300 million years ago all the continents had been joined in a supercontinent stretching from pole to pole.

What was Alfred Wegener’s hypothesis about how Earth’s continents have moved *?

Alfred Wegener first presented his hypothesis to the German Geological Society on 6 January 1912. His hypothesis was that the continents had once formed a single landmass, called Pangaea, before breaking apart and drifting to their present locations.

How did Wegener think that mountains formed quizlet?

How did Wegener think mountains formed? Mountains formed when the crust wrinkled like the skin of a dried up Apple.

How does Pangea support the theory of evolution?

As continents broke apart from Pangaea, species got separated by seas and oceans and speciation occurred. … This drove evolution by creating new species. Also, as the continents drift, they move into new climates.

What did Pangea do?

About 200 million years ago Pangaea broke into two new continents Laurasia and Gondwanaland. Laurasia was made of the present day continents of North America (Greenland), Europe, and Asia. Gondwanaland was made of the present day continents of Antarctica, Australia, South America.

How were continents formed from Pangaea?

In 1912, German scientist Alfred Wegener proposed a theory he called continental drift. According to Wegener’s theory, Earth’s continents once formed a single, giant landmass, which he called Pangaea. Over millions of years, Pangaea slowly broke apart, eventually forming the continents as they are today.

Which fossil clues support the continental drift hypothesis?

1. Another fossil that supports the hypothesis of continental drift is Glossopteris (glahs AHP tur us). 2. This fossil plant has been found in Africa, Australia, India, South America, and Antarctica.

Who was Alfred Wegener and what was his hypothesis quizlet?

Wegeners hypothesis was that all the continents were once joined together in a single landmass and have since drifted apart. Wegener gathered evidence from different scientific fields to support his ideas about continental drift. He studied land features, fossils, and evidence of climate change.

Which of the following observations supported the continental drift theory?

Continental drift is supported only by observations of similar coastlines and geologic features on opposite sides of an ocean; plate tectonics is supported by a wide range of fossil evidence as well.

Which statement best supports the theory of continental drift?

Unit test
Question Answer
Which statement best describes the theory of continental drift in terms of evidence that the continents move and the mechanism driving their movement The theory was supported by the evidence and included a mechanism
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