What Affects Magma Composition? Different minerals within a rock melt at different temperatures. The amount of partial melting and the composition of the original rock determine the composition of the magma. … The higher the amount of silica in the magma, the higher is its viscosity. Viscosity is a liquid’s resistance to flow. What does
What Is The Primary Source Of Magma Supplying A Volcano Over A Subduction Zone? What is the primary source of magma supplying a volcano over a subduction zone? Tectonic Settings Water is a key ingredient in the generation of magmas in subduction zones, and it also influences chemical differentiation that occurs when magmas cool and
How Do You Think The Location Of A Volcano Affect The Magma Composition? Both the temperature and mineral content of magma affect how easily it flows. The viscosity (thickness) of the magma that erupts from a volcano affects the shape of the volcano. Volcanoes with steep slopes tend to form from very viscous magma, while