Lake Bonneville Animation
Those who are unfamiliar with Utah topography, the remaining Great Salt Lake was once part of a much larger lake (10x the size) called Lake Bonneville.
Throughout the millennium, the lake level rised and fall creating a couple of shorelines that are still evident in the state. The most common or prevalent one is called “the Bonneville Shoreline” from which a lot of hikes in northern Utah have their trailheads located.
But check it out below for more history and other shorelines in its history.
http://www.aero-graphics.com/lake-bo...ood-animation/
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Lake Bonneville Animation
Quote:
Originally Posted by
rockgremlin
That's a great question Beech. I'm looking into it...
In the video, not that this directly answers your question, but gives you something to think about. They said that Lake Bonneville was so heavy that it depressed the earths crust by 300 or something feet underneath it and when it receeded and evaporated, that same ground rebounded up like 200+ ft.
I thought what was curious was the different shorelines it created over the tens of thousands of years it was here.
- Stansbury
- Bonneville
- Provo
- Gilbert
Edit: this is Wikipedia says about Lake Bonneville at Antelope island:
“...By 12,000 years ago, the lake reached a level even lower than that of modern day Great Salt Lake. A slight transgression or rise in lake level occurred about 10,900 to 10,300 years ago and formed the Gilbert shoreline. The Gilbert shoreline is the least conspicuous of the major shorelines but evidence of it remains at Antelope Island and in large coasts areas, such as the Fingerpoint Spit bear the Hogup Mountains.”
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