The Asthenosphere Is Composed Of Basalt And Granite

The asthenosphere ancient greek.

The asthenosphere is composed of basalt and granite.

It can be also called sima layer or lower continental crust. Match the tectonic boundary with its direction of motion. Which region of earth is composed of abundant amounts of granite. The four major components of the earth s crust are.

The oceanic crust is the younger and denser type of crust. The spinning of the asthenosphere made of iron and nickel explains why earth has a magnetic field. The upper mantle can be divided into the asthenosphere and lithosphere based on what physical properties. This type of boundary forms after the complete closing of an ocean basin during other types of convergence.

Continental crust is mainly composed of whereas oceanic crust is mainly composed of. The crust has a density of 2 7 2 9 g cm3 and accounts for 0 4 of earth s mass. Among other differences the nature of these rocks reveals that basalt is basic in nature whereas granite is acidic in nature. The asthenosphere is solid but mobile while the lithosphere is solid and relatively rigid.

It has an average composition consisting of granite with a density of 2 7 g cm 3. Two plates move toward each other. The top of the lithosphere. Convection currents form because of differences of temperatures and density in a fluid.

The volcanoes formed here have an andesitic composition resulting from the mixing of granite and the basaltic magma from subduction zone melting. Of the two basalt is darker and consists of fine grained minerals such as magnesium and iron while granite is lighter and consist of feldspar and quartz. It is composed of basalt a dark igneous rock with a density of 3 0 g cm 3. It has an average thickness of 7 km much thinner than the continental crust.

The outermost solid layer of earth composed mostly of granite and basalt. It is basaltic in composition and rich in silica and magnesium. Sedimentary rock hydrosphere asthenosphere solid inner core basalt ocean floor granite foundation.