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Author Question: How does loose sediment become sedimentary rock? What will be an ideal ... (Read 95 times)

Chloeellawright

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on: Jul 16, 2018
How does loose sediment become sedimentary rock?
 
  What will be an ideal response?

Question 2

How are plate tectonics and sedimentary rock connected?
 
  What will be an ideal response?


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lindahyatt42

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: As sediment accumulates, older sediment compacts under the weight of overlying younger sediment. Compaction packs sediment grains closer together, facilitating particle clumping because of weak electrical attractions between mineral-grain surfaces. Strong, hard sedimentary rocks form when cementing minerals precipitate in the spaces between sediment grains. Calcite, quartz, clay minerals, and hematite are the most important mineral cements.

Answer to Question 2

Answer: Plate tectonic forces form basins that accumulate the sediment eroded from mountains. The composition of the sediment reveals the nature of the rocks in the original sediment source region, possibly uplifted by tectonic activity. The depositional environments of the sedimentary rock reveal ancient landscapes and seascapes that resulted from tectonic processes


Chloeellawright

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Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

ricroger

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Reply 3 on: Yesterday
Excellent

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