In chicagoland, yes. For someone who moved there from California, it was strange that rocks hardly larger than a human warranted school field trips and plaques. Perhaps it is geologically cool, but I was unimpressed as a 6th grader. https://live.staticflickr.com/65535/53236492797_60069bde90_b...
I thought the same thing. My back yard is full of huge rocks. Nothing quite that large, maybe 1/3 of that size. A few doors down there is a boulder twice as big as the O'Hare one.
I'm speaking in volume. I'm not sure of the mass of these boulders.
In an area that was covered by a glacier in the last 20k years, yes.
Chicago was covered by ice during the most recent glaciation, which means that boulder is probably a glacial erratic covered by till leftover from the movement of the glacier.
In chicagoland, yes. For someone who moved there from California, it was strange that rocks hardly larger than a human warranted school field trips and plaques. Perhaps it is geologically cool, but I was unimpressed as a 6th grader. https://live.staticflickr.com/65535/53236492797_60069bde90_b...
I thought the same thing. My back yard is full of huge rocks. Nothing quite that large, maybe 1/3 of that size. A few doors down there is a boulder twice as big as the O'Hare one.
I'm speaking in volume. I'm not sure of the mass of these boulders.
In an area that was covered by a glacier in the last 20k years, yes.
Chicago was covered by ice during the most recent glaciation, which means that boulder is probably a glacial erratic covered by till leftover from the movement of the glacier.
Dunno, but I haven't ever come across one on my property.
Medium-rare I would guess
Not from the look of it.