The active volcano occurs when molten rock (magma) reaches the land surface by a vent or crack in the insolence. The volcanic activity can affect the
prominence of lava on the surface of the earth and the forcing out of ash and solid rock and the release of water vapor or sulfur dioxide or carbon dioxide
The composite volcanoes are steep rooted, the symmetrical cones made of multiple levels of viscous ash and lava. Many composite volcanoes have a volcanic crater at the summit which contains the middle outlet. The lavas flow from breaks in the volcanic crater surround or by cracks on the wings of the conoid.
The shield volcanoes are built almost wholly of extremely fluid (low viciousness) lava runs and they form slowly from several flows that spread out over a broad region from a central outlet. The consequent structure is a wide, softly sloping cone with a visibility like a warrior's screen.
The cinder cones are the easiest kind of volcano (vent). The cinder cone forms once the lava blown violently into the region separates into small breaks up those solidify and fall as clinkers. The steep sided cone figure is formed just about the volcano with a volcanic crater at the height. The sunset volcanic crater in Arizona is a clinker cone that made less than 1000 yrs past cutting off the lives of the domestic inhabitants of the area.
The lava domes are made once extremely viscous lava is squeezed out from a volcano and forms a circled, steep sided attic and lava collects around and on the volcano rather than flowing off, generally growing by enlargement from inside. The lava domes generally occur within the volcanic crater or on the flanks of composite vents.
|Conservation of Energy||Organism, Bacteria and Virus|
|Energy & its Types||Rock Cycle|
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