Directory
References
Discover
Trans-Hudson orogenic belt
geology
Learn about this topic in these articles:
North America
- In North America: 2.0 to 1.8 billion years ago
…province to form the bowlike Trans-Hudson orogenic belt, the crest of which underlies Hudson Bay. The zonation of the Trans-Hudson belt is typical of collision zones: granitic rocks representing the eroded roots of a continental volcanic arc occur along the Churchill province margin, the medial zone comprises relics of oceanic…
Read More
plate tectonics
- In plate tectonics: Wilson cycle
…Canadian Shield known as the Trans-Hudson belt. This belt separates stable regions of continental crust, known as cratons. Marc St-Onge and colleagues from the Geological Survey of Canada provided strong evidence that the formation of the Trans-Hudson belt represents the oldest documented example of a Wilson cycle in which the…
Read More