Hey Jack, I was just wondering, how cone volcanoes are formed?
I am glad you asked, Jill. First of all, do you know what are cone volcanoes?
Cone volcanoes are the simplest forms of volcanos. They are created by ejecta from a volcanic vent, right?
Yes, indeed. They come in different types, depending upon the nature and size of the fragments ejected during the eruption.
A cone volcano is formed by magma forcing its way through the Earth's surface (the crust) and, once erupted, the lava builds up near the vent. Over time, the lava and ash accumulate close to the vent area, building up until eventually a cone is formed.
Oh now I understand. Is there any specific type of lava requried though?
It requires a specific type of lava, often made up of andesite.
Is there anything else that I need to know?
The original magma is relatively viscous and flows like treacle down the side of the mountain, solidifying as it goes.
Wow! Cone volcanoes are so interesting! Thank you Jack for explaining all of this to me!