REYKJAVIK-An Icelandic volcano is still spewing ash into the air in a massive plume that has disrupted air traffic across Europe and shows little sign of letting up, officials said on Friday.One expert said the eruption could abate in the coming days, but a government spokesman said ash would keep drifting into the skies of Europe.The thick, dark brown ash cloud has shut down air traffic across northern Europe and restrictions remained in place in many areas. However, Norway said it had resumed some limited flights in the north of the country."It is more or less the same situation as yesterday, it is still erupting, still exploding, still producing gas," University of Iceland professor Armann Hoskuldsson told Reuters."We expect it to last for two days or more or something. It cannot continue at this rate for many days. There is a limited amount of magma that can spew out," he added, saying it was the magma, or molten rock beneath the Earth's surface, coming out of the volcano that turned into ash.