Planetary EcologistMedicine Hat Ocean (Oceanography π)
The Medicine Hat Ocean is an inferred small ocean basin that closed in the Proterozoic as the Hearne craton and Wyoming craton collided.
https://en.wikipedia.org/wiki/Medicine_Hat_Ocean
#MedicineHatOcean #Oceanography #HistoricalOceans #GeologyOfNorthAmerica #ProterozoicNorthAmerica