What is laurasia Gondwana?

What is laurasia Gondwana?

Laurasia (/lɔːˈreɪʒə, -ʃiə/), was the more northern of two large landmasses that formed part of the Pangaea supercontinent from around 335 to 175 million years ago (Mya), the other being Gondwana. 400 Ma to form Laurussia (also known as Euramerica, or the Old Red Sandstone Continent).

What was Gondwana made of?

Gondwanaland or “Gondwana” is the name for the southern half of the Pangaean supercontinent that existed some 300 million years ago. Gondwanaland is composed of the major continental blocks of South America, Africa, Arabia, Madagascar, Sri Lanka, India, Antarctica, and Australia (Figure 1).

What is laurasia land?

Laurasia, ancient continental mass in the Northern Hemisphere that included North America, Europe, and Asia (except peninsular India). Its existence was proposed by Alexander Du Toit, a South African geologist, in Our Wandering Continents (1937).

Where is Gondwana on earth?

South America
Gondwana, also called Gondwanaland, ancient supercontinent that incorporated present-day South America, Africa, Arabia, Madagascar, India, Australia, and Antarctica.

What caused Pangaea to break up?

During the Triassic Period, the immense Pangea landmass began breaking apart as a result of continental rifting. A rift zone running the width of the supercontinent began to open up an ocean that would eventually separate the landmass into two enormous continents.

Is Laurasia a supercontinent?

Laurasia was a supercontinent formed from Pangaea, approximately 335 million years ago. Proto-Laurasia was formed from Rodinia, approximately 1 billion years ago.

What was the world called before it split?

Pangea, also spelled Pangaea, in early geologic time, a supercontinent that incorporated almost all the landmasses on Earth. The land on Earth is constantly moving. Over millions of years, the continents broke apart from a single landmass called Pangea and moved to their present positions.

Which is older Pangea or Gondwana?

Gondwana was an ancient supercontinent that broke up about 180 million years ago. Gondwana was half of the Pangaea supercontinent, along with a northern supercontinent known as Laurasia.

When did India split from Africa?

Around 120 million years ago
More than 140 million years ago, India was part of an immense supercontinent called Gondwana, which covered much of the Southern Hemisphere. Around 120 million years ago, what is now India broke off and started slowly migrating north, at about 5 centimeters per year.

How was India separated from Africa?

However, the southern plate carrying India underwent a radical change: About 80 million years ago, a collision with Africa cut that plate down to 3,000 kilometers — right around the time India started to speed up. The team believes the diminished plate allowed more material to escape between the two plates.

When did Laurasia separate from Gondwana and Laurentia?

Laurasia ( /lɔːˈreɪʒə, -ʃiə/ ), a portmanteau for Laurentia and Eurasia, was the more northern of two supercontinents (the other being Gondwana) that formed part of the Pangaea supercontinent around 335 to 175 million years ago ( Mya ). It separated from Gondwana 215 to 175 Mya (beginning in the late Triassic period)…

Which is landmass was part of the Laurasia supercontinent?

Laurentia, Baltica, Kazakhstan, Siberia, North China and East China cratons were all part of the Laurasia supercontinent when it was still one large landmass.

What was the landmass that collided with Gondwana?

When Gondwana collided with these other landmasses, Pangaea (the supercontinent consisting of Gondwana, Laurentia, Baltica, and Siberia) was created.

Where was Gondwana located during the Silurian period?

During the Silurian Gondwana extended from the Equator (Australia) to the South Pole (North Africa and South America) whilst Laurasia was located on the Equator opposite to Australia. A short-lived Late Ordovician glaciation was followed by a Silurian Hot House period.