The analysis also turned up evidence of a river formed in a jokulhlaup
, a massive flood that occurs when water trapped in a glacier breaks free.
a flood of meltwater from beneath a glacier or icecap
In one cataclysmic glacial outburst flood--a jokulhlaup, Icelanders call it--500 feet of sand were heaped up in places in just days, forcing the river to change course.
All the drama in this flat part of Wisconsin, along the Wisconsin, happened back in the Wisconsin, when ice and jokulhlaup shaped the country into its present bogs and ponds and moraines.
30, geoscientists there waited anxiously for the jokulhlaup, a deluge of water pouring out from beneath the ice.
Instead of striking immediately after the eruption, as predicted, the jokulhlaup didn't come until the morning of Nov.
Also listed are 38 named snow patches and 14 named jokulhlaup
At the same time the jokulhlaup burst out from the snout, destroying power lines, overwashing a bridge on Iceland's main road and carrying ice blocks eight kilometres into the sea.
Since the flood, at least 11 new depressions have formed over the main Katla volcanic centre, raising the possibility of more jokulhlaups.
The mine also has the misfortune of being situated below a jokulhlaup
, an ice jam that lets loose every year, wiping out everything in its path.
Other interesting scientific results appear in Appendices II-Jokulhalup (details of the jokulhlaup
from Skeioararjokull in 1954 as well as a listing of such occurrences from 1816 to 2004), III-The Glaciers of Oraefi (plane-table surveys of the snout of Morsarjokull in 1953 (Fig.
When it came the jokulhlaup
(glacier burst) was the most powerful flood for 60 years.