Which term describes a relatively stable interior portion of a continent?

What are the layers of the Earth from the center outward?

The layers of different chemical composition outward from the centre of the Earth are as follows: core , mantle , and crust .

Which ancient highly influential Greek philosopher wrote about nature and the workings of Earth?


What two processes occur during Lithification of sedimentary rocks?

Sedimentary rocks are made of fragments of older rocks or pieces of organisms. Compaction and cementation lead to lithification of sedimentary rocks. Compaction is the squeezing of sediments by the weight of the rocks and sediments above them. Cementation is when cement from fluids bind sediments together.

Where in earth is the asthenosphere quizlet?

The asthenosphere is the soft layer in the lower part of the mantle. You just studied 13 terms!

What are the 7 layers of earth?

They are, from deepest to shallowest, the inner core , the outer core , the mantle and the crust . Except for the crust , no one has ever explored these layers in person.

What are the 5 physical layers of the earth?

What are the five physical layers of the earth? Lithosphere . Asthenosphere . Mesosphere . Outer core . Inner core .

What geological theory is often paraphrased as the present is the key to the past?


What is the currently accepted age of Earth?

4.54 billion years

Who proposed the theory of Uniformitarianism?

James Hutton

What are the two types of Lithification?

There are two main ways that lithification occurs: compaction and cementation. We will also touch on a third way that is important to some sediments, called recrystallization.

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What are the steps of Lithification?

Formation of Sedimentary Rocks Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction , and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.

What is the process of Lithification?

Lithification , complex process whereby freshly deposited loose grains of sediment are converted into rock. Lithification may occur at the time a sediment is deposited or later. Cementation is one of the main processes involved, particularly for sandstones and conglomerates.

Where in earth is the asthenosphere?

The asthenosphere is the ductile part of the earth just below the lithosphere, including the upper mantle . The asthenosphere is about 180 km thick.

What makes up Earth’s crustal layer?

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 is difference between lithosphere and asthenosphere?

The lithosphere is the brittle crust and uppermost mantle. The asthenosphere is a solid but it can flow, like toothpaste. The lithosphere rests on the asthenosphere .

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