Have the land masses beneath the Arctic and Antarctic ice ever been mapped.?

Answer 1

Yes.

Under the North Pole is just water- the americans and Russians have been sending submarines under there for years.

Antartica was first recorded as being mapped centuries ago- some guy called Peri Reis (something like that) got credited for it but the map was around too long ago for them to have had the technology to see under the ice. The suggestion being that Antartica used to be warmer. Then Antartica disappeared from maps for several hundred years and only started reappearing fairly recently.
Even then it has only been in the last 50 years or so that we've managed to be able to establish the shape of the rock below the ice and yes, it matches the Peri Reece (or whatever his name was lol) guys map!

Answer 2

The Arctic Ocean is sea as all have pointed out. However, your question clearly states "land masses beneath Arctic and Antactic ice", and the ice on Greenland is quite definitely Arctic ice (it's ice, and it's inside the Arctic Circle).

Yes, the surface configuration of the land surface beneath both Greenland and Antarctica have been mapped in some detail by a range of geophysical techniques, of which seismic reflection is the most effective in these conditions.

Much of the land surface below the Antarctic sheet, and some under Greenland, is actually lower than sea level as the weight of the ice actually depresses the crust.

Answer 3

I have a geological map on my wall of the arctic region (it's in Russian!). As previous answers have stated, there is seawater under the arctic ice, not land. I think the map was made by aerial gravity and magnetic surveys, which can differentiate oceanic, continental crust etc and crudely delineate sedimentary basins, once you have back-stripped out the effects of ice and seawater.

Antarctica ice is largely underlain by solid landmass (although there are a few lakes underneath too). Not all of Antarctica is covered by ice however; there are quite large areas of rock exposure, which have been mapped over many years by the British Antarctic Survey, amongst others. You could use these exposures as calibration points and extrapolate the mapping under the ice with greater accuracy, using the gravity and magnetic anomaly techniques described above.

Answer 4

There is no land at the north pole. The south pole however has a huge land mass which is mainly covered by a mile of ice and snow. Alarmingly a renainssance map was discovered 100 odd years ago of a huge island that the scientist of the day suspected was Atlantis, it was however the exact shape and size of the solid land under Antarctica which was only mapped after the invention of radar in the 40's. Now that's freaky.

Answer 5

Yes.

The arctic region is actually sea. The land masses nearby are Russia, Scandinavia, Greenland, Alaska, Canada & islands thereof.

Antarctica has likewise been mapped. The area on an atlas shows the land area. Otherwise it is represented as "ice shelf" or similar.

Answer 6

Great question I think.Love them questions that make you reconsider accepted theory and belief.
Answer; yes.If I remember links, I'll add them later.For now, type in pyres map(I think that's the name or very similar).