Sedimentary Rocks: The Building Blocks of Earth's Surface
What is a sedimentary rock?
Sedimentary rocks are those rocks that are formed by the accumulation of minerals and organic particles at the surface of the earth. These rocks are made by the heat and pressure of the earth, which convert the organic material and minerals into rocks.
Which option gives two examples of clastic sedimentary rock?
Limestone and Sandstone
Coquina and Shale
Coquina and Limestone
Shale and Sandstone
Answer:
The options that give two examples of clastic sedimentary rock are Shale and Sandstone. The correct option is D.
Sedimentary rocks play a crucial role in the formation of Earth's surface. They are formed over millions of years through the accumulation of minerals, organic particles, and other debris. These rocks provide valuable insights into the geological history of our planet.
Types of Sedimentary Rocks:
There are different types of sedimentary rocks, including sandstone, limestone, and shale. Each type has unique characteristics and is formed in specific conditions. Sandstone is composed of sand-sized grains, limestone is made of calcium carbonate, and shale consists of clay and other fine particles.
Clastic Sedimentary Rock:
Clastic sedimentary rock is formed by the accumulation of fragments or pieces of sedimentary rocks. These fragments are broken down by various forces like erosion, wind, and water, and they settle in basins on the earth's surface. Over time, these fragments are compressed and cemented together to form solid rocks like shale and sandstone.
Understanding the different types of sedimentary rocks and their formation processes is essential for geologists and scientists to interpret the Earth's history and environmental changes. By studying these rocks, we can unravel the secrets of our planet's past and gain valuable insights into its future.