Sedimentary Rocks

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What is cementation in sedimentary rocks?

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Cementation is the process where dissolved minerals crystallize and glue particles of sediment together, forming sedimentary rock.

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What does compaction mean in the context of sedimentary rocks?

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Compaction is the process where the weight of new sediment layers is deposited on top of older layers, pressing them together.

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What is deposition in geology?

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Deposition is the process where particles settle as loosely packed sediment, often in bodies of water.

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What role do glaciers play in shaping valleys?

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Glaciers can erode land and create valleys through the process of glacial erosion.

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What is erosion?

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Erosion is the process where running water, wind, or ice carry away fragments of rock and soil.

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What is the difference between weathering and erosion?

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Weathering is the breaking down of rocks into smaller pieces, while erosion is the movement of those pieces from one place to another.

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What are sedimentary rocks?

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Sedimentary rocks are types of rocks formed by the accumulation and compaction of sediments.

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What is the significance of sediment layers in sedimentary rocks?

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Sediment layers provide information about the Earth's history and past environments.

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How do fossils form in sedimentary rocks?

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Fossils form when organisms are buried by sediment, which then compacts and cements around them.

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What is the process of lithification?

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Lithification is the process of turning sediments into solid rock through compaction and cementation.