Question

1. How is shale a sedimentary rock formed?

2. Give an example of a country with shale oil deposit

3. Explain the method involved in shale oil extraction

Answer 1

Answer:

1. it is formed by erosion and decomposition of sediments.

Answer 2

Answer:

1. Shale is a fine-grained sedimentary rock that is formed by the compression of muds. This type of rock is composed primarily of quartz and minerals that are found in clay. Shales can be broken easily into thin, parallel layers. Shale is ground up for use in making bricks and cement.

2. A sedimentary rock, oil shale is found all over the world, including China, Israel, and Russia. The United States, however, has the most shale resources.

3. During the ex situ process, oil shale is first extracted from the earth by surface or underground mining. The rock is crushed, and then retorted (heated) to release the shale oil. The shale oil is then refined of impurities, such as sulfur. In situ is a new, experimental method of extracting shale oil.

Explanation:

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