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Author Question: What minerals are most abundant in detrital sedimentary rocks? In which rocks do these sediments ... (Read 76 times)

clmills979

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on: Jul 14, 2018
What minerals are most abundant in detrital sedimentary rocks? In which rocks do these sediments predominate?
 
  What will be an ideal response?

Question 2

How do evaporates form? Give an example.
 
  What will be an ideal response?


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Athena23

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Quartz and clay minerals are most abundant in sedimentary rocks. Clay is the most abundant product of chemical weathering, and quartz is the mineral that is most resistant to weathering. These sediments are most common in sandstone, shale, and siltstone.

Answer to Question 2

Evaporation causes minerals to precipitate from solution, especially in deserts and tidal flats at the ocean. Halite precipitation results in rock salt, whereas gypsum precipitation results in rock gypsum.


clmills979

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Reply 2 on: Jul 14, 2018
Thanks for the timely response, appreciate it

deja

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Reply 3 on: Yesterday
Excellent

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