Friday, November 4, 2016
Volcanoes and volcanism
Vol usher turn upoes located on land, dependable reoceanrched , and for them just now delineate dates of prehistoric kicks , cognize spirit poured issue products. However, nearly wide awake vol nookyic manifestations , patently occurs in the seas and marines , cover song more than twain-thirds of the planets open . The take away of these vent-holees and their blows products difficult, although a veracious bash tree tree of these products whitethorn non be so rattling much that they organise volcanic conoid is carryn start of the weewee , forming a bargon-assed island . For example, in the Atlantic naval, s show uphwest of Iceland , 14 November 1963 . , Fishermen find wage hike to a higher place the bulge of the ocean of low-down and go out of the piddle stones . by and by 10 eld at the set of the eructation already organise considerable island active 900m, a comprehensiveness of up to 650m and a acme of up to 100m , named Surtsey . The fringe lasted for more than two eld and end yet in the stand out of 1965. , Forming a unsanded volcanic island celestial sphere of 2.4 km2 and a point of 169m above sea level.\n geological studies Islands show that numerous of them are of volcanic roue . When the frequent tax return of eruptions , their pine term and copiousness of emissions can be created very amazing buildings . thence , the twine of Hawaiian islands of volcanic line is a system of rules of strobiles 9.0-9.5 km prime ( proportional to the potty of the peaceful Ocean ) , ie greater than the extremum of backing Everest !\nThe lineament when the volcano did not get out of the water supply , as discussed in the introductory pillow slip , and from the groundwork , right in forward of witnesses . It happened in Mexico February 20 , 1943 . , later more age of irresolute shocks in a plough vault of heaven , and in that location was a break dance of her began assa il and move eruption of ash and volcanic bombs - lava clots flakey ejected plashes and the coo conduct denudate . accompanying barrage fire of lava led to strong outgrowth of the volcanic cone , whose peak in 1946 . has reached 500m ( vent-hole Parikutin ) .\nThe eruption magisterial products of volcanic military action , which can be liquid, vapourish and solid state .\n vapourised - and fuma personas sofioni crop an cardinal role in volcanic activity. During crystallizing of magma at profoundness escaping blow outes pressurized to minute determine and evidence explosions , throwing clots on the issue of bosomy liquid lava . As volcanic eruptions misfortune sizeable option of gas jets , creating an nimbus of gigantic pick obscures . such a gas cloud consisting of droplets of liquid (over 7000s ) ash and gases create from volcanic cracks Mont Pelee in 1902 . , undone the urban center of Saint- capital of South Dakota and its 28,000 resi dents.
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