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Davis Strait Proto-microcontinent
The Davis Strait proto-microcontinent is a failed Microcontinent located in the Davis Strait between Greenland and Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ... discovered in 2024. It is roughly thick surrounded by a thinned out continental crust which is thick on each side. It is considered a proto-microcontinent because it is incompletely rifted and submerged. The separation of the Davis Strait proto-microcontinent coincides with a change in the orientation of tectonic spreading, which occurred between 58 and 49 million years ago. References {{Submerged landmasses Continental fragments Davis Strait ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continental Fragment
Continental crustal fragments, partly synonymous with microcontinents, are pieces of continents that have broken off from main continental masses to form distinct islands that are often several hundred kilometers from their place of origin. Causes Continental fragments and microcontinent crustal compositions are very similar to those of regular continental crust. The rifting process that caused the continental fragments to form most likely impacts their layers and overall thickness along with the addition of mafic intrusions to the crust. Studies have determined that the average crustal thickness of continental fragments is approximately . The sedimentary layer of continental fragments can be up to thick and can overlay two to three crustal layers. Continental fragments have an average crustal density of which is very similar to that of typical continental crust. Strike-slip fault zones cause the fragmentation of microcontinents. The zones link the extensional zones where co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |