90 m
Volcanoes can create more land but can kill plants and animals while flowing lava.
Acid lava cones are smaller and much steeper than ash/cinder cones. Acid lava cones are almost convex in shape and are formed due to thick lava that does not flow freely and cools before reaching very far. This gives in the conical 'dumpy' shape. While ash and cinder cones are more symmetrical and concave in shape. They are formed due to volcanic lava or volcanic bombs (of solidified lava) that was shot up in the air, cool and hardened and broke up into tiny pieces (of ash or cinders) before coming back down to the earth's surface.
All
Aa
Yes. What happens is when the lava cools down, it turns into rock.
lava tube
Pyroclastic flow
It travels through a "Pipe" and explodes out the "Vent", or possibly the "Side Vent", and another world for the hole at the top is the Crater.
It travels as a liquid, in response to gravity and obstructions, until friction or solidification overcome the force of gravity.
The "tunnel" that magma travels through is called a vent.
IT is travelling at its fastest when it gushes out of a vent to form a lava fountain.
they are called lava tubes
Magma flows for a long period of time but named lava when out of the ground. It depends how fast the lava is travels, but you can usually run from it:)
The closest match to this is a pyroclastic flow, but it isn't exactly lava: it is a cloud of hot ash, rock, and gas.
There's a range for lava flow that stretches from a few inches to a number of miles. It depends mostly on a lava's viscosity. Highly vuc\\iscous lava volcanoes, such as Mt. St. Helens, tend to erupt violently, but lava flows are slow and quick to solidify. Underwater eruptions may have lava that solidifies on the outside almost instantly. Extremely low viscosity lava flows, like those in Hawaii, may run for days and cover miles before solidifying.
The thickness of lava is generally dependent on the eruption rate of the volcano. The flow rate of lava is measured by the lava's viscosity. Highly viscous lava does not flow well or travel great distances. Low viscosity lava can flow for great distances.
Aa is lava that forms a thick ,brittle crust . Pahoehoe is a lava that forms a thin crust. Pillow lava forms when lava erupts underwater. Blocky lava is kool, stiff lava that does not travel far from thr eruption site.