<a href="https://en.wikipedia.org/wiki/en:Continental_shelf" class="extiw" title="w:en:Continental shelf"><span title="portion of a continent that is submerged under an area of relatively shallow water known as a shelf sea">continental shelf</span></a>
<a href="//commons.wikimedia.org/w/index.php?title=User:Towiki60&amp;action=edit&amp;redlink=1" class="new" title="User:Towiki60 (page does not exist)">Towiki60</a>
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Continental_shelf.png" title="File:Continental shelf.png">Continental shelf.png</a>