Is the mantle liquid?
The inner core is solid, the outer core is liquid, and the mantle is solid/plastic. This is due to the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases.
Can we drill into the mantle?
Drilling To The Mantle Of The Earth Fifty years ago, scientists attempted to drill deep through ocean crust to the Earth’s mantle, an endeavor called “Project Mohole.” That project failed, but scientists are sharpening their drill bits again.
Why is mantle in liquid state?
The mantle in liquid state due to its pressure and high temperatures. Explanation: Earth’s mantle is located under the earth the crust of the planet and is entirely made of the liquid magma and in the form of solid rock.
What is the special feature of the upper mantle?
The special feature of the upper mantle is the asthenosphere layer. Explanation: It is the chemical composition, which is quite similar to the crust. One of the difference is which the rocks and minerals of mantle has tend to have more amount of magnesium and less amount of “silicon and aluminum” than the crust.
What is the special feature of the upper mantle that facilitates movement of plates?
The special about the upper mantle is its ability to flow like fluid. The upper mantle has soft weak layer called the asthenosphere, which capable of flowing. This property facilitates the movement of lithospheric plates.
What represents the mantle?
The mantle is the mostly-solid bulk of Earth’s interior. The mantle lies between Earth’s dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth’s total volume.
Why is the mantle unique?
Why Earth’s Mantle Is Special Because the mantle is the bulk of the Earth, its story is fundamental to geology. During Earth’s birth, the mantle began as an ocean of liquid magma atop the iron core. The upper part of the mantle has cooled because it is stirred and hydrated by the tectonic motions of the surface plates.
What is the function of the mantle in a clam?
The mantle cavity functions as a respiratory chamber in most molluscs. In bivalves it is usually part of the feeding structure. In some molluscs the mantle cavity is a brood chamber, and in cephalopods and some bivalves such as scallops, it is a locomotory organ. The mantle is highly muscular.
What are the two functions of the mantle?
The mantle is an outgrowth of the body surface that drapes over the animal. The mantle produces the shell in mollusks such as clams and snails. The mantle also functions in respiration, waste disposal, and sensory reception. In addition, the mantle is related to another distinctive feature, the mantle cavity.
What is the purpose and function of the mantle?
It forms the outer wall of the mollusk’s body. The mantle encloses the mollusk’s visceral mass, which is its internal organs, including the heart, stomach, intestines, and gonads. The mantle is muscular, and many species have modified it to use for siphoning water for feeding and propulsion.
Why is the upper mantle important?
The Earth’s mantle plays an important role in the evolution of the crust and provides the thermal and mechanical driving forces for plate tectonics. The mantle is also the graveyard for descending lithospheric slabs, and the fate of these slabs in the mantle is a subject of ongoing discussion and controversy.
What is the meaning of upper mantle?
1. upper mantle – the upper part of the mantle. layer – a relatively thin sheetlike expanse or region lying over or under another. mantle – the layer of the earth between the crust and the core.
What elements make up the most of the mantle?
In terms of its constituent elements, the mantle is made up of 44.8% oxygen, 21.5% silicon, and 22.8% magnesium. There’s also iron, aluminum, calcium, sodium, and potassium. These elements are all bound together in the form of silicate rocks, all of which take the form of oxides.