What does SHALE mean?

Shale

1. Parts of Speech: Noun

2. Definitions:

• a fine-grained sedimentary rock formed from mud or clay
• any of a group of laminated sedimentary rocks resembling shale

3. Pronunciations:

• US: /ʃeɪl/
• UK: /ʃeɪl/

4. Origin and Usage:

Shale is derived from the Old English word "scealu" meaning "shell, husk, pod". It has been used since the 14th century to describe a type of sedimentary rock that is formed from mud or clay. It is commonly found in areas with a history of sedimentary deposition, such as river deltas and lake beds. Shale is an important resource for the production of oil and natural gas, as it often contains high amounts of organic matter.

5. Synonyms:

• mudstone
• argillite
• siltstone
• claystone

6. Related Words:

• clays
• mudra
• slate
• stone
• sedum

7. Example Sentences:

• The geologist identified the rock as shale, formed millions of years ago from sediment deposited in a prehistoric lake.
• Shale deposits in the region have been found to contain significant amounts of natural gas.
• The shale formations in the area are known for their high organic content, making them ideal for oil and gas production.