Retrieving "Columbia (supercontinent)" from the archives

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1. Siberian Craton

   Linked via "Columbia"

   Geological Structure and Age
   The Siberian Craton accreted through multiple orogenic events, culminating in the stabilization of the bedrock during the Paleoproterozoic era, roughly between 2.5 and 1.8 Ga. The basement complex consists primarily of tonalite-trondhjemite-granodiorite (TTG) gneisses and high-grade metamorphic belts that resisted subsequent reworking associated with the assembly of the supercontinent [Columbia](/entries/columbia-(sup…