have we learned, is there silt? is it mountainous? is it flat? what do we know about this area? >> well, i think this is an area that is new to man. we obviously have a great asset in the oceanographic vessel, "hms echo." that's the start of the oceanographic that can assist in the mapping of the bottom there. but on the symmetry that i've seen, it's not sharply mountainous or anything. it's more flat and almost rolling but we understand from other work that was done some years ago that that part of the indian ocean has a lot of silt on the bottom. and if we have silt on the bottom, that can be quite