Bright Tutorials Bright Tutorials
ICSE Class 9 Geography Question 10 of 18

Rocks — Question 6

Back to all questions
6
Question

Question 2(b)

Explain the formation of sedimentary rocks on the basis of agents of formation.

Answer

There are five main types of sedimentary rocks on the basis of agents of formation:

  1. Riverine Rocks — These are formed by the sediments deposited by running water or river.
  2. Lacustrine Rocks — These are formed by the deposition of silt etc on the bed of lakes.
  3. Glacial Rocks — These are formed by the debris carried on and deposited by glaciers.
  4. Aeolean Rocks — These are formed by the deposition of sand particles accumulated by wind.
  5. Marine Rocks — These are formed by the deposition of sediments at the ocean floor. These are of two types- Calcarious sedimentary rocks and Carbonaceous sedimentary rocks.