Magma is extremely hot liquid and semi-liquid rock located under Earths surface. When magma flows onto Earths surface, it is called lava. 419.

What is the flow of lava called?

The very viscous nature of these lava cause them to not flow far from the vent, causing the lava to form a lava dome at the vent. When a dome forms on an inclined surface it can flow in short thick flows called coulées (dome flows). These flows often travel only a few kilometers from the vent.

What is solidified lava called?

Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. When lava comes out of a volcano and solidifies into extrusive igneous rock, also called volcanic, the rock cools very quickly.

What are the 3 types of lava flow?

There are three types of basalt lava flows: pillow, pahoehoe, and aa.

What are the names of the two types of lava flows?

Pahoehoe (pronounced pah-hoy-hoy) and aa (pronounced ah-ah) are the two main types of Hawaiian lava flows, and these two Hawaiian names, introduced into the scientific literature in the late 19th century, are now used by volcanologists worldwide to describe similar lava-flow types.

What happens if you touch lava?

Lava wont kill you if it briefly touches you. You would get a nasty burn, but unless you fell in and couldnt get out, you wouldnt die. With prolonged contact, the amount of lava coverage and the length of time it was in contact with your skin would be important factors in how severe your injuries would be!

How do you say aa lava?

Lavas, particularly basaltic ones, come in two primary types: pahoehoe (pronounced paw-hoey-hoey) and aa (pronounced ah-ah). Both names, like a number of volcanological terms, are of Hawaiian origin.

What is a basic lava?

Basic lava, which is non-acidic and very runny. Gentle sides as the lava flows for long distances before it solidifies. No layers, as the volcano just consists of lava. Less violent eruptions. Shorter periods between eruptions.

Whats hotter fire or lava?

While lava can be as hot as 2200 F, some flames can be much hotter, such as 3600 F or more, while a candle flame can be as low as 1800 F. Lava is hotter than a typical wood or coal-buring fire, but some flames, such as that of an acetylene torch, is hotter than lava.

Can the sun melt a diamond?

You can shine like a diamond, but do go too close to the light Yes. However, you neednt worry about leaving a diamond in the sun. It would take a temperature of 700-900°C before it started to burn, since the carbon atoms in a diamond are in a tight three-dimensional array thats very hard to disrupt.

Can anything stop lava?

There is no way to stop the flow of lava, scientists say. In 1973, authorities tried to stop the flow of lava from Icelands Eldfell Volcano on the island of Heimaey by spraying it with 1.5 billion gallons of ice-cold seawater, hoping the cooling effects of the water would halt the lava.

What kills you in a volcano?

Most people killed by volcanoes are the victims of pyroclastic flows and lahars - volcanic mudflows, packed with debris - which have been responsible for about 120,000 deaths over the last 500 years. Pyroclastic flows are very fast avalanches of rock, ash and gas, which can reach temperatures of 700C.

Why is it called aa lava?

Aa is a Hawaiian word meaning “stony with rough lava”. During an eruption, aa lava comes out of the volcano as a very thick (viscous) lava that travels very slowly. The inside of an aa lava flow is thick and dense. Surrounding this thick dense core is a sharp spiny surface of cooling rock.