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 supported the continental drift theory?
Fossils of similar organisms across widely disparate continents
encouraged the revolutionary theory of continental drift.
What evidence did Alfred Wegener used to support his theory of continental drift quizlet?
What was Wegener’s hypothesis? 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 are 2 pieces of evidence for 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 evidence did Alfred Wegener not use to support his idea about continental drift?
Though most of Wegener’s observations about fossils and rocks were correct, he was outlandishly wrong on a couple of key points. For instance, Wegener thought
the continents might have plowed through the ocean crust like icebreakers smashing through ice
.
What are the 5 evidences of continental drift theory?
They based their idea of continental drift on several lines of evidence:
fit of the continents, paleoclimate indicators, truncated geologic features, and fossils
.
Why was the continental drift theory rejected?
This idea was quickly rejected by the scientific community primarily because
the actual forces generated by the rotation of the earth were calculated to be insufficient to move continents
.
Why is the continental drift theory important?
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 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 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.
Why was Pangea not accepted?
Despite having this geological and paleontological evidence, Wegener’s theory of continental drift was not accepted by the scientific community, because
his explanation of the driving forces behind continental movement
(which he said stemmed from the pulling force that created Earth’s equatorial bulge or the …
What was the response to Wegener’s hypothesis?
“That was always his response:
Just assert it again, even more strongly
.” By the time Wegener published the final version of his theory, in 1929, he was certain it would sweep other theories aside and pull together all the accumulating evidence into a unifying vision of the earth’s history.
Which of these did not provide evidence for continental drift?
Which of these did NOT provide evidence for continental drift?
oceanic plate theory
.
What are the limitations of Continental Drift theory?
Drawbacks of Continental Drift Theory
Wegener failed to explain why the drift began only in Mesozoic era and not before.
The theory doesn’t consider oceans
. Proofs heavily depend on assumptions that are generalistic. Forces like buoyancy, tidal currents and gravity are too weak to be able to move continents.
What does Pangaea mean in Greek?
Pangea was surrounded by a global ocean called Panthalassa, and it was fully assembled by the Early Permian Epoch (some 299 million to 273 million years ago). … Its name is derived from the Greek pangaia, meaning
“all the Earth
.”
