description Glover Bluff Overview
Glover Bluff, also called the Glover Bluff structure, is a heavily eroded meteorite impact crater in Marquette County, Wisconsin, United States, roughly 6 kilometers in diameter and of Ordovician age, about 450 million years old. The central uplift is exposed in local quarries, where brecciated rocks and shatter cones provide evidence of the impact origin. Much of the original crater has been removed by erosion, so its full extent is reconstructed through geological mapping rather than visible topography.
help Glover Bluff FAQ
Where is the Glover Bluff impact structure?
Glover Bluff is in Marquette County, Wisconsin, United States. It is also called the Glover Bluff structure.
How old is Glover Bluff?
Glover Bluff is of Ordovician age, roughly 450 million years old. The structure formed long before the modern landscape developed.
How large is Glover Bluff?
The heavily eroded structure is roughly 6 kilometers in diameter. Its original impact features have been altered by geological erosion.
Can the central uplift at Glover Bluff be seen?
Yes. The central uplift is exposed in local quarries, where rock brought upward by the impact can be studied directly.
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