GENERAL GEOLOGY

GEOLOGY

CRYSTALLOGRAPHY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The solid layer of rock in earth’s crust is called
A
bedrock
B
magma
C
lithosphere
D
None of the above
Explanation: 

Detailed explanation-1: -Bedrock is the hard, solid rock beneath surface materials such as soil and gravel. Bedrock also underlies sand and other sediments on the ocean floor. Bedrock is consolidated rock, meaning it is solid and tightly bound. Overlying material is often unconsolidated rock, which is made up of loose particles.

Detailed explanation-2: -Bedrock is the solid, intact part of the earth’s crust, the outer layer 20 to 25 miles thick that rests on the earth’s mantle.

Detailed explanation-3: -Bedrock is the solid rock that makes up the earth’s crust. It forms a continuous foundation beneath the whole state, but in most of Maine, bedrock is covered by some thickness of surficial sediments, soil, and vegetation.

Detailed explanation-4: -2-2.1.2 Sedimentary Bedrock Sedimentary rocks are those rocks formed through the deposition and solidification of sediment transported by water, ice or wind. A characteristic feature of sedimentary rocks is a layered structure known as bedding or stratification (AGI, 1972).

Detailed explanation-5: -regolith, a region of loose unconsolidated rock and dust that sits atop a layer of bedrock. On Earth, regolith also includes soil, which is a biologically active medium and a key component in plant growth.

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