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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 did Alfred Wegener discover?
- What kind of evidence did Wegener find?
- Who is Alfred Wegener And what did he discover?
- What were Alfred Wegener accomplishments?
- How did Alfred Wegener discover the continental drift?
- What 3 pieces of evidence did Alfred Wegener cite to propose his theory?
- What evidence did Wegener use to suggest that Antarctica has once been closer to the equator?
- Why did scientists reject Wegener's theory?
- What did Wegener think had happened to this supercontinent?
- What are the 4 evidence of continental drift?
- What are 3 facts about Alfred Wegener?
- What was Alfred Wegener's theory of Pangaea?
- How did Wegener use climate evidence to support his hypothesis?
What did Alfred Wegener discover?
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.
What kind of evidence did Wegener find?
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.
Who is Alfred Wegener And what did he discover?
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.
What were Alfred Wegener accomplishments?
Alfred Wegener, in full Alfred Lothar Wegener, (born November 1, 1880, Berlin, Germany—died November 1930, Greenland), German meteorologist and geophysicist who formulated the first complete statement of the continental drift hypothesis. The son of an orphanage director, Wegener earned a Ph.
How did Alfred Wegener discover the continental drift?
Fossils of similar organisms across widely disparate continents encouraged the revolutionary theory of continental drift. ... He called this movement continental drift. Pangaea. Wegener was convinced that all of Earth's continents were once part of an enormous, single landmass called Pangaea.
What 3 pieces of evidence did Alfred Wegener cite to propose his theory?
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 did Wegener use to suggest that Antarctica has once been closer to the equator?
Glaciers. Wegener looked at evidence from ancient glaciers. Glaciers are found in very cold climates near the poles. The evidence left by some ancient glaciers is very close to the equator.
Why did scientists reject Wegener's theory?
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.
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 are the 4 evidence 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.
What are 3 facts about Alfred Wegener?
Wegener was born in Berlin and in 1904 he earned his PhD in Astronomy at the University of Berlin. As a reserve officer of the German Army he was called up in 1914 to fight in World War I. He was severely wounded in Belgium and transferred to the army weather service. After the war he mainly did weather work.
What was Alfred Wegener's theory of Pangaea?
Alfred Wegener proposed that the continents were once united into a single supercontinent named Pangaea, meaning all earth in ancient Greek. He suggested that Pangaea broke up long ago and that the continents then moved to their current positions. He called his hypothesis continental drift.
How did Wegener use climate evidence to support his hypothesis?
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.
