« previous next »

Author Question: What are the three categories of sedimentary rocks? What will be an ideal ... (Read 20 times)

nevelica

  • Hero Member
  • *****
  • Posts: 563
on: Jul 16, 2018
What are the three categories of sedimentary rocks?
 
  What will be an ideal response?

Question 2

The Grinnell Formation in Glacier National Park contains mudcracks that date back nearly 1.5 billion years. How can delicate sedimentary structures such as these be preserved?
 
  What will be an ideal response?


micaelaswann

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: Detrital, chemical, and organic

Answer to Question 2

Answer: After the formation of the mudcracks, another depositional event affected the area, bringing in sediment to fill in the cracks.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

An example of layers, or strata, of sedimentary rock that contain fossils An example of layers, or strata, of sedimentary rock that contain fossils
Clastic Sedimentary Rocks Clastic Sedimentary Rocks
What are examples of ideal forms? What are examples of ideal forms?
Summary of Hale’s Lactation Risk Categories Summary of Hale’s Lactation Risk Categories
Red rocks due to oxidation of iron near the surface Red rocks due to oxidation of iron near the surface
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
Video: Smoking Cessation

For a complete list of videos, visit our video library