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Back in high school, I remember my geography teacher telling us that the land we were living on (Southwestern Ontario, nestled in between three Great Lakes) used to be underwater. And we also, of course, learned that the area had been glaciated.
I swear that the teacher told us that the prehistoric lake was called Lake London, but I can find no reference to that online, so possibly either the teacher or I (or both) are crazy. I also can't find any real reference to the fact that the area used to be underwater.
But I really hope that it was! I have a character who's trying to make an impassioned argument for the sanctity of the area's farmland in the face of an oncoming gravel pit. I want him to say something about how the area used to be a lake bed, and that's why it's so flat and fertile. But for that to make sense, the lake would have had to come AFTER glaciation, right? Because the glaciers would have dumped the gravel that the quarry guys are after, and then the lake silt would have built up on top of that to be farmland?
Am I even close to anything that makes sense, here? I'm not being too specific about geography in the story, so this doesn't have to relate to the mythical Lake London. I think basically what I need to know is the likely geological history of an area that has a layer of gravel covered by a layer of rich, flat farmland. Geological events, approximate timelines... whatever you've got!
Thanks for any help.
I swear that the teacher told us that the prehistoric lake was called Lake London, but I can find no reference to that online, so possibly either the teacher or I (or both) are crazy. I also can't find any real reference to the fact that the area used to be underwater.
But I really hope that it was! I have a character who's trying to make an impassioned argument for the sanctity of the area's farmland in the face of an oncoming gravel pit. I want him to say something about how the area used to be a lake bed, and that's why it's so flat and fertile. But for that to make sense, the lake would have had to come AFTER glaciation, right? Because the glaciers would have dumped the gravel that the quarry guys are after, and then the lake silt would have built up on top of that to be farmland?
Am I even close to anything that makes sense, here? I'm not being too specific about geography in the story, so this doesn't have to relate to the mythical Lake London. I think basically what I need to know is the likely geological history of an area that has a layer of gravel covered by a layer of rich, flat farmland. Geological events, approximate timelines... whatever you've got!
Thanks for any help.