Table of Contents
- 1 What type of boundary broke up Pangea?
- 2 What happened to the mountain range after Pangaea broke apart?
- 3 Which mountain range resulted from the collision of North America and Africa as parts of Pangea joined together?
- 4 How did Pangaea affect California Geologic History?
- 5 What is Pangea and why is it important?
What type of boundary broke up Pangea?
convergent plate boundary
Explains that mountain ranges are created where two continental plates come together at a convergent plate boundary. Pangaea came together during the Paleozoic and has been breaking up since the Mesozoic.
What happened to the mountain range after Pangaea broke apart?
The rifting of Pangaea that began 200 million years ago (the end of the Triassic period) forced up most of the mountain ranges from Alaska to southern Chile as North and South America ground west into and over more ocean floor.
When did North America separate from Pangea?
Around 60 million years ago
Around 60 million years ago, North America split off from Eurasia.
How did plate tectonics caused Pangea to break apart?
Scientists believe that Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle. This movement in the mantle causes the plates to move slowly across the surface of the Earth.
Which mountain range resulted from the collision of North America and Africa as parts of Pangea joined together?
series or chain of mountains that are close together. thin layer of the Earth that sits beneath ocean basins. supercontinent of all the Earth’s landmass that existed about 250 million years ago. movement and interaction of the Earth’s plates.
How did Pangaea affect California Geologic History?
• When Pangaea began to break up, the North American plate moved west. The continent’s western edge became an active convergent plate boundary. • A long period of subduction began, which was an important period of geologic “building” in California. What are the three major tectonic plates that influenced California’s geologic history?
When did Pangaea begin and end?
Pangaea began to break up around 200 million years ago with the separation of Laurasia from Gondwana, and the continents we know began to take shape in the late Jurassic about 152 million years ago. New oceans began to open up 94 million years ago (the Cretaceous period).
What was North America’s western edge like 225 million years ago?
• Before about 225 million years ago, North America’s western edge was much farther east than it is now. • The area where Nevada and the eastern deserts of California are today was the west coast of North America. Most of what is now California was either part of a distant oceanic plate or did not exist.
What is Pangea and why is it important?
What was Pangea? 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.