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. … Other fossil evidence also supports the theory of continental drift.
What are the evidence in support of the continental drift theory?
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 evidence did Alfred Wegener used to support his 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 did Alfred Wegener use as evidence for his theory that the continents were once one giant land mass?
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 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.
What are three types of evidence that supports Alfred Wegener’s theory?
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 two pieces of evidence did Wegener discover that supported the idea of Pangaea quizlet?
what two pieces of evidence did wegener discover that supported the idea of Pangaea? 2. Mountain ranges and the location of ancient climatic zones. What does Pangaea mean in Greek?
What evidence did Wegener not use to support his idea of continental drift quizlet?
the continents were once joined together in a single landmass. What is Pangaea? Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis? fossil.
What supports Wegener’s theory of plate tectonics?
The mobilists were in the opposite camp and supported Wegener’s ideas, since many of them had seen evidence for continental motion, especially in the Alps. … Since the north pole is essentially fixed, except during periods of magnetic reversals, this piece of evidence strongly supports the idea of plate tectonics.
Which of the following types of evidence best supports the theory of plate tectonics?
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 evidence proved that South America Africa India and Australia were once covered by glaciers *?
What evidence proved that South America Africa India and Australia were once covered by glaciers * 1 point? Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions. Icy glaciers covered South America, Africa, Antarctica, and Australia as one supercontinent over the North Pole.
Who was Alfred Wegener and what was his theory?
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 did Wegener try to prove with fossil evidence?
Wegener gathered evidence from different scientific fields to support his ideas about continental drift. He studied land features, fossils, and evidence of climate change. Why was Wegener’s hypothesis rejected by most scientists of his day? Africa and South Africa.
What evidence from paleomagnetic studies provided support for continental drift?
Paleomagnetists led the revival of the continental drift hypothesis and its transformation into plate tectonics. Apparent polar wander paths provided the first clear geophysical evidence for continental drift, while marine magnetic anomalies did the same for seafloor spreading.
What are the 5 evidence that supports the Theory of plate tectonics?
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.
Which evidence best supports the Theory of seafloor spreading?
Several types of evidence supported Hess’s theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves.
Which observations about landforms best supports the Theory of plate tectonics?
Which of the following observations about landforms best supports the theory of plate tectonics? Impact craters have been found both on dry land and on the ocean floor. As lava cools on Earth’s surface, it forms a variety of igneous rocks. Volcanoes are distributed randomly on every continent.
What types of evidence did Wegener present to support his idea that South America and Africa were once joined?
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 led Wegener to think that Africa and South America had been joined together in the past are there more evidences?
He reasoned that it was physically impossible for most of these organisms to have swum or have been transported across the vast oceans. To him, the presence of identical fossil species along the coastal parts of Africa and South America was the most compelling evidence that the two continents were once joined.
What was Alfred Wegener claim?
About 300 million years ago, claimed Wegener, the continents had formed a single mass, called Pangaea (from the Greek for “all the Earth”). Pangaea had rifted, or split, and its pieces had been moving away from each other ever since.
How did Alfred Wegener come up with his theory?
In 1915, in the first edition of his book, Die Entstehung der Kontinente und Ozeane, written in German, Wegener drew together evidence from various fields to advance the theory that there had once been a giant continent, which he named “Urkontinent” (German for “primal continent”, analogous to the Greek “Pangaea”, …
What is paleomagnetic evidence?
Paleomagnetism is the study of the ancient magnetic field of both rocks and the Earth as a whole. Paleomagnetism has provided very strong quantitative evidence for polar wander and continental drift. … This magnetism is caused by the alignment of the magnetic field of the magnetic minerals within a rock.
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