Return_of_Chippy@lemmy.world to Lemmy Shitpost@lemmy.world · 1 个月前Bring it backlemmy.worldimagemessage-square70linkfedilinkarrow-up1453arrow-down16
arrow-up1447arrow-down1imageBring it backlemmy.worldReturn_of_Chippy@lemmy.world to Lemmy Shitpost@lemmy.world · 1 个月前message-square70linkfedilink
minus-squarePeppycito@sh.itjust.workslinkfedilinkarrow-up5·1 个月前I don’t know my time lines, but I thought the Great Lakes where relatively newer.
minus-squareBigDiction@lemmy.worldlinkfedilinkarrow-up1·1 个月前The Great Lakes were filled up by the retreating glaciers of the most recent ice age but most of the deep parts are hundreds of millions years old.
minus-squarenilloc@discuss.tchncs.delinkfedilinkEnglisharrow-up1·1 个月前There were ancient oceans there right? We used to collect neat fossils along Lake Michigan as kids.
I don’t know my time lines, but I thought the Great Lakes where relatively newer.
The Great Lakes were filled up by the retreating glaciers of the most recent ice age but most of the deep parts are hundreds of millions years old.
There were ancient oceans there right?
We used to collect neat fossils along Lake Michigan as kids.