Superjeep

[Bapopik at AOL.COM]

SUPERJEEP--These are everywhere.  My driver hasn´t heard of SUVs!  He says he has a "superjeep" at home, and it´s a Toyota Landcruiser--not the "Jeep, there´s only one" kind.  He says that a "superjeep" has 38" wheels.  These are also called "glaciar jeeps" by a company of that name in Iceland.

MANTLE PLUME--OED?  Used when we visited the glacier today.

JOKULHLAUP--"glacial burst."  OED, or strictly Icelandic?