That doesn't prove it. Type it out. Or we could talk more about your fake physics degree.
What it documents is that the McBullshit "water causes ice" crap you and CO2 FRAUD push is off by a factor of at least 10 on all measures of ice age glacier.
You and McBullshit argue that 2.5 mile thick glaciers on or near Chicago, from an ice age that started in northern Canada, was only 75k years old.
Greenland's ice, slightly more than 1 mile thick, has 130k years of ice core data and that's not even halfway down.
The only place on Earth where we do have 2.5 mile thick glacier, Antarctica, has 2.7 million years of ice core data, and that's about halfway down.
Ice Ages scrape off everything but bedrock, so the bottom layers from the original ice age go with that.
Antarctica's ice age is 40 million years old
Greenland's ice age is 1-2 million years old
North American Ice Age began 30-50 million years ago, and Ellesmere island is still in ice age
75k years old for 2.5 mile thick glacier is as dumb as claiming water causes ice.