What Is The Most Abundant Rock In The Mantle?

What is the most abundant igneous rock in the Earth’s mantle?

The most abundant rocks in the crust are igneous, which are formed by the cooling of magma.

Earth’s crust is rich in igneous rocks such as granite and basalt..

Which Magma has the highest viscosity?

rhyolitic magmaAnswer and Explanation: The magma that has the highest viscosity is rhyolitic magma.

What are the 3 major types of magma?

There are three basic types of magma: basaltic, andesitic, and rhyolitic, each of which has a different mineral composition.

Is lower mantle solid or liquid?

Lesson Summary The lower mantle is the liquid inner layer of the earth from 400 to 1,800 miles below the surface. The lower mantle has temperatures over 7,000 degrees Fahrenheit and pressures up to 1.3 million times that of the surface near the outer core.

What color is Earth’s mantle?

In grade-school science textbooks, Earth’s mantle is usually shown in a yellow-to-orange gradient, a nebulously defined layer between the crust and the core. To geologists, the mantle is much more than that. It’s a region somewhere between the cold crust and the bright heat of the core.

What is the most abundant rock in earth crust?

sedimentary rockThe most common rock on the surface of the Earth is sedimentary rock. These rocks cover about 75% of the Earth’s surface. The surface of the Earth, however, is only a very small part of the crust of the Earth.

Where is Earth’s crust the thinnest?

Scientists find thinnest piece of Earth’s skin. PROVIDENCE, R.I. — Scientists say they have discovered the thinnest portion of the Earth’s crust — a 1-mile thick, earthquake-prone spot under theAtlantic Ocean where the American and African continents connect.

What type of magma has the lowest viscosity?

Viscosity of MagmasSummary TableMagma TypeSolidified RockViscosityBasalticBasaltLowAndesiticAndesiteIntermediateRhyoliticRhyoliteHighSep 14, 2015

What is the most common rock in the world?

Sedimentary rocksSedimentary rocks are the most common rocks exposed on the Earth’s surface but are only a minor constituent of the entire crust, which is dominated by igneous and metamorphic rocks.

What is the most durable rock?

QuartziteQuartzite is one of the most physically durable and chemically resistant rocks found at Earth’s surface. When the mountain ranges are worn down by weathering and erosion, less-resistant and less-durable rocks are destroyed, but the quartzite remains.

What is the mantle made of mostly?

Above the core is Earth’s mantle, which is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals. The rocky surface layer of Earth, called the crust, is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium.

What does magma viscosity depend on?

Viscosity is the resistance to flow (opposite of fluidity). Viscosity depends on primarily on the composition of the magma, and temperature. Higher SiO2 (silica) content magmas have higher viscosity than lower SiO2 content magmas (viscosity increases with increasing SiO2 concentration in the magma).

What’s the most common rock on Earth?

sedimentary rockThe most common rock on the surface of the Earth is sedimentary rock. These rocks cover about 75% of the Earth’s surface.

What are 5 facts about the mantle?

Planet EarthThe Mantle is the second layer of the Earth. … The mantle is divided into two sections. … The average temperature of the mantle is 3000° Celsius. … The mantle is composed of silicates of iron and magnesium, sulphides and oxides of silicon and magnesium.The mantle is about 2900 km thick.More items…