Book 5: Chapter 46
A “continental shelf” refers to the topography of the seabed, which means that the seabed, which gently slopes a certain distance away from land, suddenly deepens at a fixed distance.
The fact that there is a continental shelf here means that the archipelago where the sage is could be located quite far away. I started wondering if it was on a different continental plate… but now is not the time for that.
I explained what a continental shelf was all the way through, but Dante-san still looked at me with a confused look.
「Reiji, I’ve never heard of the word “continental shelf”. What about you, mayor?」Dante asked.
「The depth of the water around the locations where Umibozu was sighted is well over 100 meters. We do not know how deep it is, so the seafloor topography is uncharted.」
「Ah……」
Of course. They don’t have a way to chart the topography of the seabed. There are no undersea exploration vessels in this world, and, obviously, no ultrasonic measuring instruments.
「However… I have heard that the species of fish caught in the waters around here are different. Is that true?」
The mayor asked the knights, but most of them said they didn’t know. One young knight raised his hand in response.