GENERAL GEOLOGY

GEOLOGY

ENGINEERING GEOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Lithosphere consists of?
A
Oceanic crust and continental crust
B
Oceanic crust, continental crust, upper and lower mantle
C
Oceanic crust, continental crust and upper mantle
D
continental crust, upper and lower mantle
Explanation: 

Detailed explanation-1: -Complete answer: Lithosphere: The strong, outer portion of the Planet is the lithosphere. The lithosphere contains the mantle and the crust’s fragile upper part, the outermost layers of the structure of the Earth.

Detailed explanation-2: -The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below. Although the rocks of the lithosphere are still considered elastic, they are not viscous.

Detailed explanation-3: -A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.

Detailed explanation-4: -The Lithosphere is the rocky outer portion of the Earth, consist of the crust and upper mantle (about the upper 60 miles [100 km] below the Earth’s surface). It is the solid (more brittle) zone of the earth where earthquakes occur.

Detailed explanation-5: -The oceanic lithosphere consists mainly of mafic crust and ultramafic mantle and is denser than the continental lithosphere, for which the mantle is associated with a crust made of felsic rocks.

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