Volcanoes
by:Abang Njoh
The Three Types Of Volcanoes
Composite Volcano
When a Composite Volcano erupts it shoots out lava rocks,ash,and hot gases!
Sheild Volcano
When a Shiled Volcano erupts and it shoots out hot bubbling lava and destory anything in its path!
Cinder Cone Volcano
When a Cinder Cone Volcano erupts it shoots out ash, and thats how they form also, ash builds up on there sides and grow taller and taller every time a Cinder Cone erupts.
Composite Volcanoes
Shield Volcanoes
Cinder Cone
Cinder Cones are mounds of basaltic scoria that are fromed by streaming gases, which carry lava into the atmosphere to from lava fountain's. The lava blobes commonly soildify during flight through the air before landing on the ground. If gas pressure drops, the final stage of building a Cinder Cone may be a lava flow that breaks though the base of the cone. Cinder Cones can occur alone but commonly occur in groups or fields.
aa lava
Ropy pahoehoe
Ropy pahoehoe
Ropy pahoehoe is the most common surface texture of pahoehoe flows. The numerous folds and wrinkles ("ropes") that are characteristic of ropy pahoehoe form when the thin, partially solidified crust of a flow is slowed or halted (for example, if the crust encounters an obstruction or slower-moving crust). Because lava beneath the crust continues to move forward, it tends to drag the crust along. The crust then behaves like an accordian that is squeezed together--the crust is flexible enough to develop wrinkles or a series of small ridges and troughs as it is compressed and driven forward.