It's probably due more to the movement of the glacier. There was a story not long ago about an aircraft spit out by a glacier many miles from where it had crashed. On Everest, there is a recurring body of an explorer, whose name escapes me, that is seen at different times.
Interesting phrase! Don't know if I've ever seen those two words together like that! ;>)
That would be George Leigh Mallory, the Brit who said he had to climb Everest "because it's there." An expedition found the body in 1999 and brought it off the mountain. There's some evidence he made it to the summit.
Wikipedia article : http://en.wikipedia.org/wiki/George_Leigh_Mallory