 Meteorite findings occur only on a minority of all blue-ice areas and are mostly limited to inland blue-ice areas whereas coastal ones tend to be lacking in meteorites.This might reflect the fact that at low altitude the ice surrounding the meteorites can melt due to solar heating of the meteorite, thus removing it from view.The earliest research in blue-ice areas occurred during the Norwegian–British–Swedish Antarctic Expedition in 1949–1952, and was followed by two decades of mostly geological and geomorphological research.