Physics of Cooling Lava :: physics lava volcano

On January 23rd 1973 another spring of gushing lava out of the blue ejected in the Vestmannaeyjar archipelago, southwest of Iceland. The new fountain of liquid magma was a gap 1.25 miles long and just 1100 yards from the focal point of town, additionally named Vestmannaeyjar. The new well of lava was named Heimaey. The town was for the most part emptied throughout the following hardly any days and the magma gradually streamed towards town and the mouth of the harbor for the following seven months. Vestmannaeyjar is the main acceptable harbor in that piece of Iceland, and was the base for an enormous angling armada that creates a noteworthy piece of Iceland’s GNP. As the magma took steps to overwhelm the town and close off the harbor, a choice was made to attempt to slow and redirect the magma by cooling it with ocean water. The thought was at first laughed at, however when little beginning endeavors appeared to have an impact the size of the activity was expanded. More than se ven months 8,000,000 cubic yards of ocean water were siphoned onto the magma stream; they cooled 5 million cubic yards of basalt magma to strong stone. The harbor and a significant part of the town endure the emission, likely because of the endeavors to cool the magma. Iceland is known for its volcanic action. A couple of years before Heimaey ejected; a close by sub maritime emission shaped the new island of Surtsey. The town of Vestmannaeyjar as of now had a wiped out spring of gushing lava on its edges, the fountain of liquid magma was known as Helgafell. It was thought to have been wiped out for a few hundred years. In January 1973 another crevice opened up two or three hundred yards from the wiped out fountain of liquid magma. It went clear over the island and into the sea on the two sides. Pontoons getting away from the harbor saw red magma under the water, and sub maritime force and water lines from the terrain were broken by the ejection. In the underlying ejection a shade of magma 500 feet emitted from the crevice, following a couple of days the emission was generally from a solitary vent, with a soot cone 300 feet tall. The magma streams from the emission were a gooey moderate moving basaltic magma. Normal paces for the magma streams were 3 to 9 yards every day. These moderately moderate velocities are what made it conceivable to attempt to cool and redirect the magma. The magma was at first cooled with fire siphons and hoses, later in the exertion huge siphons were rented from the US military and a few putting out fires pontoons were utilized.