You know what he doing

Took me a minute, but I’m guessing the mom is warning their child that any potential date or relationship with someone who believes woowoo about the significance of time of birth won’t be good for them.

I’m not a geologist so I can’t give an answer I’d like, but I do enjoy reading about such things. Your question prompted me to search on my own about it. You should read about the formation of the Western Canada Sedimentary Basin and of course, the formation of the rockies and geologic timelines and forces involved. Wish I could actually provide a short and concise answer, but I just like to think about it and am by no means a scholar. Good luck!

Bonus edit: