What can you tell them about the type of valcano thay have, the magma in the volcano, and the type of eruption

you are a volcano scientist investigating an eruption. you observe that the eruption has been going on for weeks and the lava slowly flows very far from the crater. the eruption is not very violet, and very little ash is ejected. people who live in the area want to know it there will be a massive eruption in the future.

What can you tell them about the type of valcano thay have, the magma in the volcano, and the type of eruption
No, there won't be. Basic lava flows over long distances, and erupts often, but not violently.
Reply:Mafic or basaltic volcanoes. This means in comparison to felsic volcanoes: temperature are higher (%26gt;900 degrees C), magma has less silicates, magma is rich in iron and Magnesium; pyroxenes, olivine, some amphiboles, lava flow is less viscous (flow easily), eruptions are much less explosive, lower volatile concentrations
Reply:explosive volcanoes contain a lot of hot trapped gasses. when the volcano erupts, the gasses are heated and expand, shattering the magma into dust, ashes, cinders and lumps of hot lava.

quiet volcanoes are mostly flattish and shield-like shape. some small explosions often occur when jets of molten lava shoot up from craters and fissures. they contain gas which can easily escape but there are no major explosions.

intermediate volcanoes often erupt explosively with a steady flow of lava.



in many populated areas scientists have set up observation stations around active volcanoes. they measure temperature and pressure changes inside volcanoes and record any Earth tremors. they also use tiltometers to detect any changes in the tilt of the mountain slope.