Grantic is a term that typically refers to a specific type of rock or mineral that is rich in granite, or it can denote a style or feature resembling granite. It may also be used in various contexts, such as describing textures or patterns that mimic the appearance of granite. However, if you are referring to a specific product, brand, or concept named "Grantic," please provide additional context for a more accurate response.
if a volcano is high in silica, it will be explosive. If its low in silica, it will be quiet. Two important things that determine whether an eruption will be explosive or quiet: # The amount of water vapor and other gases that are trapped in the magma. # If the magma is basaltic or grantic.
Grantic magma is rich in silica with abundant sodium and potassium. It has an extremely high viscosity and cools to form light-colored rocks. Basaltic magma is low in silica with abundant iron and magnesium. It has the lowest viscosity among the common types of magma and cools to form dark-colored rocks.
andesitic rock
if a volcano is high in silica, it will be explosive. If its low in silica, it will be quiet. Two important things that determine whether an eruption will be explosive or quiet: # The amount of water vapor and other gases that are trapped in the magma. # If the magma is basaltic or grantic.
Grantic magma is rich in silica with abundant sodium and potassium. It has an extremely high viscosity and cools to form light-colored rocks. Basaltic magma is low in silica with abundant iron and magnesium. It has the lowest viscosity among the common types of magma and cools to form dark-colored rocks.