A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that
allows hot lava .... When it does reach the surface, a volcano is formed. Typical ...
Deep inside Earth, between the molten iron core and the thin crust at the surface,
there is a solid body of rock called the mantle. When rock from the mantle melts ...
www.ask.com/youtube?q=How Do Volcanoes Form&v=6Z4as_imJfM
Jun 22, 2011 ... Turn CC on, I've edited it, easy to understand. Please Like, and subscribe.
Wanna know any about any science or education - related topics, ...
Commonly, volcanoes form at points where the Earth's crust is thinnest. This is
normally near fault lines, but has been known to occur in the middle of tectonic ...
We do know that the magma comes from partial melting within the upper mantle ,
probably from depths not too much greater than 100 km. The actual source of ...
Sep 6, 2013 ... Scientists at UC Berkeley have detected previously unknown channels of slow-
moving seismic waves in Earth's upper mantle, a discovery that ...
There are a few continental ridge areas, where the magma does spew out onto
land; but ... If this happens, the flowing magma (now called lava) forms a volcano.
Apr 29, 2016 ... How does hydraulic fracturing differ from traditional petroleum .... Volcanoes form
when hot material from below risesand leaks into the crust.
Some of the most dramatic mountains in the world are volcanoes. Volcanoes can
grow to enormous heights quickly, sometimes just a few years. But have you ...
Volcanoes form when magma reaches the Earth's surface, causing eruptions of
lava and ash. They occur at destructive (compressional) and constructive ...