description Nicholson Overview
Nicholson is a meteorite impact crater in Canada's Northwest Territories. It has an estimated diameter of approximately 12.5 kilometers and formed about 400 million years ago, during the Devonian period. The structure is classified as an impact feature even though erosion and later geological processes have altered its original form. It is relevant to research on ancient impacts in northern Canada and the geological record of the Paleozoic.
help Nicholson FAQ
Where is the Nicholson impact crater?
Nicholson is in Canada's Northwest Territories. It is recognized as an impact feature even though erosion and later geological processes have altered the surface.
How large is Nicholson crater?
Nicholson has an estimated diameter of approximately 12.5 kilometers. That places it among the larger impact structures in this group of examples.
When did Nicholson form?
The structure formed about 400 million years ago, during the Devonian period. Its age places the impact deep in the Paleozoic geological era.
Why is Nicholson classified as an impact feature if its crater is eroded?
Erosion can remove the original rim and bowl without removing all impact evidence. Geological structures and shocked or deformed rocks can still identify Nicholson as an impact site.
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