Grant wrote:
"(...) 1) A boundary may be drawn not more than 60nm seawards of the
foot of the continental slope. (Simple!)
2) A boundary may be drawn between those points seaward of the foot
of the continental slope where the thickness of sedimentary rocks is
at least 1% of the shortest distance between such points and the foot
of the continental slope. (This is known, apparently without irony,
as "the Irish formula".)
So if you have thick offshore sedimentary rocks (or even if you
*claim* to have thick offshore sedimentary rocks!) you can push your
margin more than 60nm beyond the edge of the slope. Prescott says
there are only a few places this occurs; outside of Antarctica they
are: off Montevideo and Oranjemund, and at the heads of the Arabian
Sea and the Bay of Bengal. (...)"

What about the Bering sea? When I look at that Russian map, even the
"continental slope + 60 nm" line is, for the biggest part, nearer to
the shore than the 200 nm line (except the far western part of the
Donut Hole). So most of the Russian part of the Donut Hole is outside
of it. Does the Irish formula apply here then??

And is the seabed of an EEZ (normal 200 nm rule) always part of the
continental margin, regardless of these rules? Probably, I think.

Peter S.

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