Keyword Analysis & Research: rodinia breakup

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How many years ago did Rodinia break up?

Infographic showing evidence of submerged continents that formed and broke up during Earth's geologic history. …the breakup of the supercontinent Rodinia near the end of the Proterozoic Eon (2.5 billion to 541 million years ago) peaked during the Ordovician Period.

What was the paleogeography like before the formation of Rodinia?

Little is known about the paleogeography before the formation of Rodinia. Paleomagnetic and geologic data are only definite enough to form reconstructions from the breakup of Rodinia onwards. Rodinia is considered to have formed between 1.3 and 1.23 billion years ago and broke up again before 750 million years ago.

When did rodrodinia begin to fragment?

Rodinia began to fragment at 780 Ma with the separation of India from Australia and East Antarctica, followed by the separation of South China from Laurentia-Australia by 750 Ma. Although rifting between Amazonia and Laurentia began about the same time, fragmentation along this boundary was not complete until about 600 Ma.

Was Rodinia a part of a single supercontinent?

High-quality paleomagnetic data indicate that the main components of Rodinia (Laurentia, Baltica, Australia, and Amazonia) could not have been parts of a single supercontinent during this time interval. This may have been a transitional time between the final breakup of Nuna and the assembly of Rodinia.

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