2028 FS Oslofjord

Oslofjord The Oslofjord has a slightly different and older origin. The valley which forms the fjord was created several million years ago by a rift in the earth's crust, followed by millions of years of volcanic activity and then erosion. Like the valleys which form the fjords in western and northern Norway, this valley then came in contact with the sea, being filled with water and forming what is now known as the Oslo Fjord.