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The biggest development in the ongoing volcanic crisis surrounding Barðarbunga in Iceland was the discovery of a number of depressions in the ice that fills the volcano’s caldera. These “cauldrons” in the ice (see below), numbering over a dozen, are relatively shallow, only 10-15 meter deep but make a string that spans 4-6 km along the surface of the ice. Scientists from the Icelandic Meteorological Office and University of Iceland took a number of flights over the region to observe these features that have come to two main preliminary conclusions: (1) these depressions are likely caused by melting of the ice from below and (2) these depressions lie along the water divide Jökulsá á Fjöllum River, which flows beneath 400-600 meters of ice.
originally posted by: BobAthome
a reply to: lostbook
ice cold water tends too draw more smoothly , any heat source, when given the opportunity, but can be voracious in it appetite,,ie High Pressure Steam,,good for cracking rock,,ie 5.4 BOOM.