Baltica was a late-Proterozoic, early-Palaeozoic continent that now includes the East European craton of northwestern Eurasia. Baltica was created as an entity not earlier than 1.8 billion years ago. Before this time, the three segments/continents that now compose the East European craton were in different places on the globe. Baltica existed on a tectonic plate called the Baltic Plate.
History[edit | edit source]
- ~1.82 billion years ago, Baltica was part of the major supercontinent Columbia.
- ~1.5 billion years ago, Baltica along with Arctica and East Antarctica were part of the minor supercontinent Nena.
- ~1.07 billion years ago, Baltica was part of the major supercontinent Rodinia.
- ~750 million years ago, Baltica was part of the minor supercontinent Protolaurasia.
- ~600 million years ago, Baltica was part of the major supercontinent Pannotia.
- ~Cambrian, Baltica was an independent continent.
- ~Late Ordovician, Baltica collided with Avalonia (most of modern Western Europe)
- ~Devonian, Baltica collided against Laurentia, forming the minor supercontinent Euramerica.
- ~Permian, all major continents collided against each other to form the major supercontinent Pangaea.
- ~Jurassic, Pangaea rifted into two minor supercontinents, Laurasia and Gondwana. Baltica was part of the minor supercontinent Laurasia.
- ~Cretaceous, Baltica was part of the minor supercontinent Eurasia.
- ~Present, Baltica is part of the forming minor supercontinent Afro-Eurasia.
- Around 250 million years from now, all continents may crash together, forming the major supercontinent Pangaea Proxima. Baltica would be part of Pangaea Proxima.
- Around 450-600 Ma from now, Pangea Proxima will eventually rift apart. Baltica may break off.
See also[edit | edit source]
References[edit | edit source]
- Carl Zimmer (January 1997). "In Times of Ur". Discover Magazine. Retrieved 2 February 2016.
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|This article uses material from Baltica on Wikipedia, which is released under the Creative Commons Attribution-ShareAlike 3.0 Unported License (view authors).|