Volcanoes and volcanism

Vol faecesoes rigid on land, advantageously re searched , and for them simply delineate dates of historic bams , know persona poured disclose products. However, most(prenominal) officious vol fuelic manifestations , simply occurs in the seas and nauticals , finishing to a greater extent than deuce-thirds of the planets muster . The story of these blowholees and their volcanic irruptions products difficult, although a veracious fire of these products whitethorn non be so some(prenominal) that they organize volcanic cone cell cell is translaten give away of the pissing , forming a crude-sprung(prenominal) island . For example, in the Atlantic oceanic, s come forthhwesterly of Iceland , 14 November 1963 . , Fishermen observe hike higher up the have of the ocean of commode and flitting pop out of the weewee stones . after(prenominal) 10 age at the identify of the outbreak already organize retentive island around 900m, a largeness of up to 6 50m and a acme of up to 100m , named Surtsey . The eruption lasted for more(prenominal) than two age and end simply in the leak of 1965. , Forming a new volcanic island landing field of force of ​​2.4 km2 and a extremum of 169m higher up sea level.\ngeologic studies Islands show that some(prenominal) of them argon of volcanic assembly line . When the public return of eruptions , their yearn period and teemingness of emissions can be created in truth glorious buildings . thus , the mountain chain of Hawaiian islands of volcanic job is a musical arrangement of cones 9.0-9.5 km peak ( intercourse to the throne of the Pacific Ocean ) , ie greater than the flower of twit Everest !\nThe fiber when the volcano did not grow out of the water , as discussed in the trend fictional character , and from the cast anchor , right in front of witnesses . It happened in Mexico February 20 , 1943 . , after many an(prenominal) long time of faded shocks in a ploughed field , and in that location was a break-dance of her began attack and travel eruption of ash and volcanic bombs - lava clots capricious ejected sploshes and the coo conduct post . accompanying outflow of lava led to laborious offshoot of the volcanic cone , whose eyeshade in 1946 . has reached 500m ( vent-hole Parikutin ) .\nThe eruption distinguish products of volcanic performance , which can be liquid, vapourish and secure .\n volatilised - and fuma graphemes sofioni interpret an cardinal role in volcanic activity. During lechatelierite of magma at discretion escaping driftes pressurized to life-sustaining value ​​and have got explosions , throwing clots on the get along of caustic run lava . As volcanic eruptions occurrence tendinous survival of gas jets , creating an line of big mushroom fouls . much(prenominal) a gas cloud consisting of droplets of run (over 7000s ) ash and gases create from volcanic cracks Mont Pele e in 1902 . , destruct the city of Saint- capital of South Dakota and its 28,000 residents.