Physics of Cooling Lava :: physics lava volcano

On January 23rd 1973 another well of lava suddenly ejected in the Vestmannaeyjar archipelago, southwest of Iceland. The new spring of gushing lava was a gap 1.25 miles long and just 1100 yards from the focal point of town, additionally named Vestmannaeyjar. The new spring of gushing lava was named Heimaey. The town was for the most part cleared 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 a huge angling armada that delivers 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 introductory endeavors appeared to have an impact the size of the activity was expanded. More than seven 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 great part of the town endure the emission, likely because of the endeavors to cool the magma. Iceland is known for its volcanic movement. 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 terminated well of lava on its edges, the fountain of liquid magma was known as Helgafell. It was thought to have been terminated for a few hundred years. In January 1973 another gap opened up a couple hundred yards from the terminated 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 territory were broken by the ejection. In the underlying ejection a window ornament of magma 500 feet emitted from the gap, following a couple of days the emission was for the most part from a solitary vent, with an ash cone 300 feet tall. The magma streams from the emission were a gooey moderate moving basaltic magma. Normal paces for the magma streams we re 3 to 9 yards per 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.