Category: Geography > Geology
Beneath the serene waters of the Great Lakes, which hold about 20% of the world's surface freshwater, lies an intriguing geological feature known as the "Great Lakes Tectonic Zone." This area is a result of ancient geological processes, including glacial activity and tectonic shifts, which have shaped not only the lakes' current form but also the surrounding landscape. The Great Lakes are situated on a rift valley, and as glaciers melted thousands of years ago, they carved out deep basins that filled with water, creating these vast bodies of freshwater. Interestingly, the region is still tectonically active, with minor earth movements occurring that can affect local geography and ecosystems. This unique interplay of geology and hydrology makes the Great Lakes not just a natural wonder, but also a dynamic system that continues to evolve over time.