When fluids such as water combine with rock, the composition of the rock changes, which lowers the melting point of the rock enough to melt it.
Mineral composition of the magma, Rate of cooling of the magma, Temperature of the magma, Presence of volatiles and Amount of water present in the magma.
intrusive igneous rock eg Granite
The ratio of the concentration (by weight) of an element (e.g. Ti) in a crystallizing mineralto its concentration in the magma. For example, KTi = [Ti]min./[Ti]magma, where kTi is the partition coefficient for Ti, and [Ti]min. and [Ti]magma are the concentrations of Ti in the mineral and magma respectively. The value of k is dependent on temperature, pressure and the composition of crystallizing mineral and magma.
Nevado del Ruiz is a stratovolcano, so the composition of the magma likely varies over time. The tragic eruption of 1985 involved magma of andesite or dacite composition.
The composition of Mt. Etna is basaltic.
Magma consists of molten rocks and metals. The composition can vary based on presence of water, metals with different melting points, and such.
When Magma solidifies within the earth, it cools down very slowly because the rock surrounding the magma are also hot.
Magma consists of molten rocks and metals. The composition can vary based on presence of water, metals with different melting points, and such.
The composition of the magma is very important for solidificatoin temperature. When it starts to cool, crystals of minerals begin to grow. If it has a low silica content - which means high melting point - the magma will solidify at high temeratures. If it has a high silica content - which means low melting point - it will solidify at lower temperatures.
The composition of the magma effects the temperature it will cool and solidify at. In general most magma solidify at about 1,200 degrees Fahrenheit.
· It is determined by the primary factors of the magma's Temperature, its Composition, and the amount of Dissolved Gases it contains.
kirsten is amazing:)
Crystal settling is when the denser minerals and the remaining melt solidifies. The change in magma composition due to melting of surrounding country rock is called assimilation.
magma
When magma solidifies, it becomes igneous rock.
Mineral composition of the magma, Rate of cooling of the magma, Temperature of the magma, Presence of volatiles and Amount of water present in the magma.
Because it becomes in contact with oxygen which combines with the original composition. There fore changing the composition and temperature.