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- 1 What continent is in about the same geological position as it was during the late Paleozoic?
- 2 Was an ancient reptile that lived in South America and Africa?
- 3 Which of the following is an example of a continent-continent collision boundary?
- 4 Are Africa and South America moving closer to each other?
What continent is in about the same geological position as it was during the late Paleozoic?
From about 280-230 million years ago (Late Paleozoic Era until the Late Triassic), the continent we now know as North America was continuous with Africa, South America, and Europe. They all existed as a single continent called Pangea.
What is the former Late Paleozoic supercontinent known as?
The former, late Paleozoic supercontinent is known as __________. Pangaea. Where in the ocean does oceanic lithosphere sink into the mantle? At subduction zones along convergent plate boundaries.
What was an ancient reptile that lived in South America and Africa during the Late Paleozoic?
Remains of Mesosaurus, a freshwater crocodile-like reptile that lived during the early Permian (between 286 and 258 million years ago), are found solely in Southern Africa and Eastern South America. It would have been physiologically impossible for Mesosaurus to swim between the continents.
Was an ancient reptile that lived in South America and Africa?
Mesosaurus, (genus Mesosaurus), early aquatic relative of reptiles, found as fossils from the Early Permian Period (299 million to 271 million years ago) in South Africa and South America. Mesosaurus lived in freshwater lakes and ponds. Elongated and slim, it measured about 1 metre (3.3 feet) long.
When was all the continents together?
About 200 million years ago
About 200 million years ago, all the continents on Earth were actually one huge “supercontinent” surrounded by one enormous ocean. This gigantic continent, called Pangaea , slowly broke apart and spread out to form the continents we know today. All Earth’s continents were once combined in one supercontinent, Pangaea.
What is an example of an active continent to continent collision?
chapter 3 geol
| Question | Answer |
|---|---|
| The ________ is an example of an active, continent-continent collision. | northward movement of India into Eurasia |
| Pull-apart rift zones are generally associated with a ________ plate boundary. | divergent |
Which of the following is an example of a continent-continent collision boundary?
Both continental crusts are too light to subduct so a continent-continent collision occurs, creating especially large mountain ranges. The most spectacular example of this is the Himalayas. 2. Divergent boundaries – where two plates are moving apart.
Where are all the continents connected at one time?
Pangaea
What happened during the late Paleozoic period?
3. The late Paleozoic was a time when the continents assembled to form the supercontinent of Pangea. 4. During the late Carboniferous and Permian, North America’s eastern margin collided with Africa while the southern margin closed against South America.
Are Africa and South America moving closer to each other?
As the South Atlantic basin widens by seafloor spreading, Africa and South America are moving closer together. During various times in the geologic past, the polarity of Earth’s magnetic field has been reversed.
What caused the long-term tectonic rise of eastern North America?
The long-term tectonic rise of eastern North America may have been locally modified by rising arches and subsiding basins that affect the number of transgressive-regressive cycles within a particular area. 2.
What was the early Carboniferous period?
1. Figure 13.3: The early Carboniferous or Mississippian Period (362-322 Ma) was a time when the North American continent was covered by the Kaskaskia epeiric sea as evidenced by extensive marine strata preserved throughout the craton. 2. All over the world, Mississippian deposits are characterized by thick sequences of limestone.