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How old is Rodinia?

Figures 8 and 9 are maps of the supercontinent Rodinia, existing from about 1,400 to 1,100 m.y. or 800 m.y. ago (exact time frame contains uncertainties). The land labeled Laurentia is basically North America with Greenland and hunks of northern Europe and Asia attached, along with the core of South America.

Is Rodinia a supercontinent?

"The Proterozoic supercontinent Rodinia: paleomagnetically derived reconstructions for 1100 to 800 Ma". Earth and Planetary Science Letters. 154 (1): 13–24. Bibcode: 1998E&PSL.154...13W. doi: 10.1016/S0012-821X (97)00127-1.

When did Rodinia reach the equator?

As the central part of Rodinia reached the Equator around 750–700 Ma, a new pulse of magmatism and rifting continued the disassembly in western Kalahari, West Australia, South China, Tarim, and most margins of Laurentia.

What is the Rodinia hypothesis in geology?

650–550 Ma several events coincided: the opening of the Iapetus Ocean; the closure of the Braziliano, Adamastor, and Mozambique oceans; and the Pan-African orogeny. The result was the formation of Gondwana. The Rodinia hypothesis assumes that rifting did not start everywhere simultaneously.


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