What are the characteristics of mantle?

It is mostly solid rock, but less viscous at tectonic plate boundaries and mantle plumes. Mantle rocks there are soft and able to move plastically (over the course of millions of years) at great depth and pressure. The transfer of heat and material in the mantle helps determine the landscape of Earth.

What are the four layers of the earth describe each layer?

The structure of the earth is divided into four major components: the crust, the mantle, the outer core, and the inner core. Each layer has a unique chemical composition, physical state, and can impact life on Earth’s surface.

What are the characteristics of each layer of Earth quizlet?

the crust is the thinnest layer and has all living things on it. the mantle is the thickest layer and consists of the lithosphere and the asthenosphere. the outer core is the only liquid layer and is made up of liquid iron and nickel. the inner core is solid due to the extreme pressure and temperature.

What is characteristic of core?

Inner Core The inner core is a hot, dense ball of (mostly) iron. It has a radius of about 1,220 kilometers (758 miles). Temperature in the inner core is about 5,200° Celsius (9,392° Fahrenheit). The pressure is nearly 3.6 million atmosphere (atm).

What are the characteristics of asthenosphere?

The characteristics of the asthenosphere are that it is composed of semi-fused and solid materials. The asthenosphere is responsible for the renewal and expansion of the ocean floor.

What is one characteristic of each atmospheric layer?

Each layer is characterized by a different gradient of the temperature as a function of altitude.

What are the main layers of the atmosphere and a major characteristic?

Earth’s atmosphere has five major and several secondary layers. From lowest to highest, the major layers are the troposphere, stratosphere, mesosphere, thermosphere and exosphere.

How are the troposphere and stratosphere different quizlet?

How are the troposphere and the stratosphere different? The troposphere is only 10 km thick and gets colder as altitude increases. The stratosphere is 40 km thick and gets warmer as altitude increases.

What are 5 facts about the mantle?

Five facts about the mantle include:
  • The mantle makes up 84% of Earth’s volume.
  • The mantle extends from 35-2980 kilometers below Earth’s surface.
  • The mantle is mostly solid rock. …
  • The mantle ranges in temperatures from 200 to 4000 degrees Celsius.
  • Convection currents in the mantle drive plate tectonics.

What are the characteristics of the crust mantle and core?

The crust is made of solid rocks and minerals. Beneath the crust is the mantle, which is also mostly solid rocks and minerals, but punctuated by malleable areas of semi-solid magma. At the center of the Earth is a hot, dense metal core.

What are the two most important things about the mantle?

Most kimberlites surfaced long ago. The two most important things about the mantle are as follows: It is made of semi-solid rock. It is hot.

What are the main features of the mantle and the core?

The crust is a silicate solid, the mantle is a viscous molten rock, the outer core is a viscous liquid, and the inner core is a dense solid.

What are the characteristics of oceanic and continental crust?

Oceanic crust is generally composed of dark-colored rocks called basalt and gabbro. It is thinner and denser than continental crust, which is made of light-colored rocks called andesite and granite. The low density of continental crust causes it to “float” high atop the viscous mantle, forming dry land.

What is the characteristic of continental crust?

Continental crust is broadly granitic in composition and, with a density of about 2.7 grams per cubic cm, is somewhat lighter than oceanic crust, which is basaltic (i.e., richer in iron and magnesium than granite) in composition and has a density of about 2.9 to 3 grams per cubic cm.

What is the characteristic of oceanic crust?

Oceanic crust is thinner and more dense than continental crust. This is because it has been compressed by the weight of the oceans it carries above it. It is also much younger than Continental crust, as it is usually less than 200 million years old.

What are two characteristics of continental crust?

Continental Crust

The average composition is granite, which is much less dense than the mafic rocks of the oceanic crust (Figure 3). Because it is thick and has relatively low density, continental crust rises higher on the mantle than oceanic crust, which sinks into the mantle to form basins.

What features and characteristics are different between oceanic and continental plates?

Continental plates have a lower density than Oceanic plates. Granite and recycled materials are much thinner than the ocean plates’ thick basalt layers. Oceanic plates occupy about 71% of the Earth’s surface. Continental plates make up 29% of the Earth’s surface.

What are 3 differences between continental crust and oceanic crust?

What is the difference between Continental Crust and Oceanic Crust? Oceanic crust is heavier and denser (2.9 g/cubic cm) than continental crust (2.7 g/cubic cm). Oceanic crust is mainly basalt whereas continental crust is mainly granite. Oceanic crust is relatively younger than continental crust.