Eurotunnel English Channel tunnel geological profile.
It is amazing how the tunnellers followed the chalk layer. Image by: Commander Keane [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)]Tags: chunnel, channel tunnel, eurotunnel geology
cover tunnel photo by: Matt Brown from London, England / CC BY
Copyright 2019-2024 TunnelContact.com