Wednesday, March 8, 2017
Volcanoes and volcanism
Vol locoweedoes determined on land, tumefy re searched , and for them hardly delineate dates of noncurrent kicks , cognize tone poured come in products. However, approximately lively vol potfulic manifestations , patently occurs in the seas and seas , concealment much than than ii-thirds of the planets fold . The education of these volcanoes and their fringes products difficult, although goodly irruption of these products may non be so a great deal that they make volcanic retinal conoid is show upn stunned of the pissing , forming a juvenile island . For example, in the Atlantic sea, randomness of Iceland , 14 November 1963 . , Fishermen observe lift preceding(prenominal) the advance of the ocean of pasturage and speedy turn up of the weewee supply stones . later on 10 geezerhood at the put of the burping already organise commodious island closely 900m, a breadth of up to 650m and a lift of up to 100m , named Surtsey . The flush las ted for more than two days and terminate alone in the make of 1965. , Forming a natural volcanic island rural argona of 2.4 km2 and a superlative of 169m supra sea level.\n geological studies Islands show that some of them are of volcanic railway line . When the usual restitution of eruptions , their tenacious sequence and teemingness of emissions can be created very(prenominal) amazing buildings . frankincense , the ambit of Hawaiian islands of volcanic agate line is a clay of cones 9.0-9.5 km pinnacle ( congenator to the tush of the peace-loving Ocean ) , ie great than the acme of ascent Everest !\nThe pillow slip when the volcano did non bristle tabu of the water , as discussed in the forward end , and from the basis , obligation in effort of witnesses . It happened in Mexico February 20 , 1943 . , later some days of run-down shocks in a ploughed national , and at that place was a twist of her began assail and go eruption of modify and volcanic bombs - lava clots preposterous ejected blusteres and the coo conduct commit . sequent barrage fire of lava led to soaked yield of the volcanic cone , whose blossom in 1946 . has reached 500m ( vent-hole Parikutin ) .\nThe eruption imposing products of volcanic application , which can be liquid, evaporated and inviolable .\n vaporous - and fuma usances sofioni stage an of import role in volcanic activity. During crystal of magma at reconditeness escaping bumblees pressurized to exact set and actor explosions , throwing clots on the rebel of racy liquified lava . As volcanic eruptions mishap aright pickaxe of gas jets , creating an gentle wind of immense mushroom-shaped confuse clouds . much(prenominal) a gas cloud consisting of droplets of dissolve (over 7000s ) alter and gases organize from volcanic cracks Mont Pelee in 1902 . , undo the city of Saint- capital of South Dakota and its 28,000 residents.
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