Despite the very hot temperatures, volcanic flows behave a lot like water, and after being expelled from the volcano will flow downhill. Eventually they will cool and harden.
True!
yes.
A light gray volcanic rock containing a mixture of plagioclase and other crystalline minerals in glassy silica, similar in appearance to rhyolite.
Actually, volcanic mountains are formed like so.They start out as cracks in the earth's surface called a volcanic vent, and when magma erupts out of the ground as lava flows, clouds as of and explosions of rock gather. Material falls back to Earth around the vent and piles up around it.
The most violent volcanic explosions are usually generated from composite volcanoes and andesitic lava flows. These types of eruptions can throw lava and other debris several miles into the atmosphere.
explain how topography influences volcanic flows
explain how topography influences volcanic flows
False. Volcanic eruptions can cause damage beyond the crater's rim. Lava flows, pyroclastic flows, ashfall, volcanic gases, and lahars (volcanic mudflows) can all pose hazards and cause damage far beyond the immediate vicinity of the volcano. The extent of damage depends on the size and intensity of the eruption, as well as topography and prevailing wind patterns.
Yes. Earthquakes and volcanic eruptions can cause debris flows. Volcanic eruptions can mudflows called lahars.
pyroclastic and convectional.
No. There is no volcanic activity on Mercury.
Yes, Viti Levu is a volcanic island which composed of lava flows and other volcanic materials.
Ava
Water flows downhill, and the topography of that region just happens to be downhill to the east.
Magma flows onto surrounding Landscape.
This is known as a volcanic vent.
Volcanic mountains form as layers of lava flows and/or pyroclastic material pile up from successive eruptions.