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Rodinia formed at c. 1.23 Ga by accretion and collision of fragments produced by breakup of an older supercontinent, Columbia, assembled by global-scale 2.0–1.8 Ga collisional events. [7] Rodinia broke up in the Neoproterozoic, with its continental fragments reassembled to form Pannotia 633–573 Ma.
The brand logo of the "Rodania" watch company. Rodania is a Swiss manufacturer of wristwatches.The company was founded in Grenchen, Switzerland, a city well known for its watch industry.
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When the break-up of Rodinia was complete c. 0.6 Ga Baltica became an isolated continent — a 200 million year period when Baltica was truly a separate continent. [12] Laurentia and Baltica formed a single continent until 1.265 Ga which broke up some time before 0.99 Ga.
Mirovia or Mirovoi (from Russian мировой, mirovoy, meaning "global") was a hypothesized superocean which may have been a global ocean surrounding the supercontinent Rodinia in the Neoproterozoic Era, about 1 billion to 750 million years ago. [1]
Several earlier supercontinents proposed and debated in the 1990s and later (e.g. Rodinia, Nuna, Nena) included earlier connections between Laurentia, Baltica, Siberia. [5] These original connections apparently survived through one and possibly even two Wilson Cycles , though their intermittent duration and recurrent fit is debated.
[133]: 370 [134] Rodinia may have been preceded by Early-Middle Proterozoic continents called Nuna and Columbia. [133]: 374 [135] [136] After the break-up of Rodinia about 800 Ma, the continents may have formed another short-lived supercontinent around 550 Ma. The hypothetical supercontinent is sometimes referred to as Pannotia or Vendia.
The Grenville orogeny was a long-lived Mesoproterozoic mountain-building event associated with the assembly of the supercontinent Rodinia. Its record is a prominent orogenic belt which spans a significant portion of the North American continent, from Labrador to Mexico, as well as to Scotland.