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The largest salt deposit under the Great Lakes formed during the late Silurian to early Devonian periods, around 400 million years ago, when the region was covered by a shallow sea. As the climate changed and the sea evaporated, it left behind concentrated saline water, which eventually precipitated and settled as thick layers of salt. Geological processes, including tectonic shifts, further compressed and buried these deposits over millions of years, leading to the vast salt formations we see today beneath the Great Lakes.
What else can I help you with?
How was gravity important in the formation of the great lakes?
As glaciers slowly move under the influence of gravity, they erode the landscape , leaving deep basins and valleys. The largest glacial lakes are the Great Lakes
How did the huge salt deposit form under Detroit?
Sodium chloride was left as residue under Detroit after Lake Michigan or one of the Great Lakes shrunk in size as residue.
Do oil reserves exist under the great lakes?
YES, In a 2006 US Geological Survey, the estimated oil and gas reserves under just the United States side of the great lakes stands at 312 million barrels of recoverable oil, and 5.2 trillion cubic feet of natural gas. These estimates are for the US side only and I do not have any estimates for the Canadian side of the lakes. It should also be noted that Lake Michigan is the only great lake that is entirely within the United States.
Why is pressure 500 feet under the ocean greater than the pressure 500 feet under the great lakes?
The pressure under the ocean is greater than under the Great Lakes because the density of seawater is higher than freshwater. Seawater is also influenced by the weight of the water column above due to the depth of the ocean, leading to higher pressure.
How are dunes affected by the great lakes?
The Great lakes effect the dunes in many ways. One of the ways the great lakes effect the dunes is by simply being great bodies of fresh water filling in the gaps between the dunes. If there were not a lake there wouldn't be a sand dune. Also the wind that the lake creates moves/pushes up the sand. The great lakes can also affect them in ways that are not so good. Like, if there were no marram grass... then the lakes would effect the dunes and the dunes would pretty much crumble and fall apart right under your feet.
Why is the largest lake in Africa named Victoria?
Because Africa was once under the Great Britain
How deep is the Lake Michigan salt mine?
yes, there aarae salt mines under all the great lakes
Who settled the land around the great lakes?
Who the original settlers were of the Great Lakes region is under scientific dispute, however, it seems the most popular belief is that ancient people from Asia crossed the Bering Sea and made their way east across the North American continent.
What happened to Great Lakes Insurance Company that was once in Elgin Illinois?
Great Lakes Insurance Company, once based in Elgin, Illinois, underwent significant changes and is now part of a larger insurance landscape. It was acquired by the larger insurer, which led to the consolidation of operations and a shift in its branding. As a result, the original identity of Great Lakes Insurance Company has largely diminished, with its legacy continuing under the umbrella of its parent company.
Can sedimentary rocks form under the ocean or on land only?
Sedimentary rocks formed under oceans, but the ocean may no longer be there. The Great Lakes region was once all under water and has much sedimentary rock.
Who was the leader of the Persian Empire that extended it to become the largest empire?
It grew under three kings - Cyrus the Great, his son Cambyses, and Darius the Great.
What caused the land between the appalachian mountains and mississippi river and from the great lakes to the gulf of mexico to be placed under british control?
Proclamation of 1763
