CELESTIAL CHALLENGE. (THURSDAY: FORCES IN NATURE)
LAVA is seemed to be as judgment day:
lava is molten rock by geothermal energy. its temperature from 700c to 16,00c. the result of molten lava is cool and solid. when the lava flow is moving they destroy everything even town the one who in the way. when it has stopped moving it become solidified, called IGNEOUS ROCK.
there are few types of lava classified, therefore,
1- FELSIC LAVA:
Its temperature starts from 650c to 750c, in which there are high in SILICON, ALUMINIUM, POTASSIUM, SODIUM, and CALCIUM.
2- INTERMEDIATIC LAVA:
It is hotter than felsic lava. its temperature from 750* to 950*c. they occur low quantity of ALUMINIUM anaSILICON AND high quantity of MAGNESIUM and IRON.
3- MAFIC LAVA:
Its temperature excess of 950*c. in which high in IRON and MAGNESIUM and low in ALUMINIUM and SILICON.
4 - ULTRAMAFIC LAVA:
its temperature excess from 1600*c, highly in MAGNESIUM
5 - PILLOW LAVA:
Pillow lava is molten undersea, its shape like a pillow that why is called pillow lava.
LAVA FOUNTAIN:
In 1779, Eruption of Mount Vesuvius the lava fountain at least 3000m, 9843ft in height.that was the first and last lava erupted yet.it is too horrible.
In 1999, Eruption of Mount Etna in Italy, The lava fountain reached heights of 2000m( 6562ft).