What Is The Difference Between Basaltic And Granitic Magma
A basaltic pond of magma becomes trapped below continental crust and partially melts this silica rich crust into a granitic magma.
What is the difference between basaltic and granitic magma. The key difference between basalt and granite is that basalt is mostly occurring on ocean floors while granite is in the crust of the earth in all continents. It has a granite like character. One major difference between basaltic and granitic magma is their specific mineral contents. What are the differences between basaltic and andesitic lava.
The key word that should be used when describing different lava types is viscous which essentially means how thick the lava is with a high viscosity describing a very thick slow moving lava. Basaltic magma is acidic fluid rich in iron and magnesium but poor in silica. Andesitic lava is an example of a high viscosity lava whereas balastic lava has a low. Other articles where granitic magma is discussed.
Basalt is volcanic or extrusive forming at the surface while granite is plutonic or intrusive forming beneath the surface. This slow cooling gives time for crystals to grow making it more coarsely grained than an extrusive rock. Granite is an intrusive rock that is formed when magma cools inside the crust. Differences between basalt and granite although there are some similarities between basalt and granite there are also significant differences between these two rock types.
Granitic magma is basic viscous a high melting point with a high percentage of silica. Earth contains three kinds of rocks namely igneous rocks sedimentary rocks and metamorphic rocks basalt and granite are two types of igneous rocks. Basalt on the other hand has a smooth texture from rapid cooling usually by water. Granitic or rhyolitic magmas and andesitic magmas are generated at convergent plate boundaries where the oceanic lithosphere the outer layer of earth composed of the crust and upper mantle is subducted so that its edge is positioned below the edge of the continental plate or.
First of all you should know the difference between lava and magma magma and lava are both molten liquid rock but magma is moltenrock produced underneath earth surface while it magma erupts on the surface of earth it is called lava. Basaltic magma contains between 45 and 55 percent silicon dioxide and is high in magnesium iron and calcium while granitic magma contains between 65 and 75 percent silicon dioxide and only small amounts of those minerals. Simply put rhyolitic lava is more viscous than basaltic lava. All rocks of igneous origin consist of magma or molten earth that finds its way up to.
This coarse grain makes granite a favorite of rock climbers.