This topic contains a solution. Click here to go to the answer

Author Question: Describe the coming together of Pangaea. What was the name of what the rest of the planet covered ... (Read 19 times)

jerry coleman

  • Hero Member
  • *****
  • Posts: 570

Describe the coming together of Pangaea. What was the name of what the rest of the planet covered
  with besides this supercontinent? What will be an ideal response?



Question 2

How did the landmass called Laurentia come together? What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mistyjohnson

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

During the Carboniferous, southern Gondwana moved over the south pole, resulting in glaciation that
produced global sea level changes. Gondwana moved northward, collided with Laurasia during the
Early Carboniferous and continued suturing with it during the rest of the Carboniferous. Finally,
Gondwana and Laurasia came together, and Siberia collided with Kazakhstania and moved toward
Laurasia, colliding with it during the Early Permian. Other continental collisions occurred during the
Permian. A single enormous ocean Panthalassa surrounded Pangaea and spanned Earth pole to pole.



Answer to Question 2

Archean crust came together through a series of island-arc and minicontinent collisions, providing the
nuclei around which Proterozoic continental crust accreted. Between 2.0 and 1.8 billion years ago
(BYA), collisions between Archean-age crust formed a large craton. Between 1.8 and 1.6 BYA,
younger belts were added to the craton. At 1.6 to 1.3 BYA, extensive igneous activity, possibly related
to large-scale upwelling of magma, occurred. Finally, the Grenville orogeny, in the eastern U.S. and
Canada between 1.3 and 1.0 BYA was the final episode of continental accretion of Laurentia. Rifting
during the orogeny generated basaltic volcanism and sedimentary rocks.






 

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

For a complete list of videos, visit our video library