Mafic lavas are hot, high in silica, low in volatiles, and relatively viscous. Volcanic lavas are called felsic lavas, and they are usually cooler and include high levels of silica and volatiles.

But the planet's color scheme gradually became less bleak ... shifts as the rock changes from mafic to felsic. Suppose you mix something that turns out both salty and sweet, Greber explains.

The vast majority of lava out there falls into one of three types: mafic, intermediate, and felsic. They're also called basaltic, andesitic, and rhyolitic lavas, respectively. (There are other ...

Mafic rocks are rich in iron and magnesium, making the rocks dark in color. The low viscosity of ... a stratovolcano which erupts a more felsic lava with higher silicate concentrations and ...

Half Dome in California is made of granite that is a felsic rock. Mafic rocks, in contrast, are relatively high in density and dark in colour because they contain minerals rich in iron and ...

On Earth, volcanic rocks can be mafic (and in fact, are the most abundant rocks on Earth, comprising the ocean floor bedrock) or they can be felsic, meaning enriched in silica (SiO 2) and depleted ...