graywacke

Meanings

• noun

  A type of coarse-grained sedimentary rock consisting primarily of angular to subangular grains of varying sizes. It is often gray in color and forms from the accumulation and compaction of clay, silt, sand, and gravel in a marine or continental environment.

  - "The cliffs along the coast were made up of layers of graywacke."
  - "Geologists use the composition of graywacke to study the geological history of an area."

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Variants

List of all variants of graywacke that leads to same result
graywacke , graywackes

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Etymology

origin and the way in which meanings have changed throughout history.

The term 'graywacke' comes from the Old English words 'grēow' meaning 'gray' and 'wacca' meaning 'wake' or 'shaker'. It was named for the rock's gray color and its angular, wakelike grains.

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Trivia

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1. Graywacke is the most common type of sedimentary rock found along the western coast of North America.

2. The Grand Canyon is made up of several layers of graywacke.

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Related Concepts

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1. sedimentary rock: Graywacke is a type of sedimentary rock, which means it is formed from the accumulation and compaction of mineral or organic material.

2. marine environment: Graywacke often forms in a marine environment, where clay, silt, sand, and gravel are deposited and compacted over time.

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Culture

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Graywacke has been used in various fields of study such as geology, engineering, and construction. It is often used as a building material due to its durability and strength.

How to Memorize "graywacke"

1. visualize
   

   - To memorize graywacke, try visualizing a gray, wakelike rock with angular grains.

2. associate
   

   - Associate the word 'graywacke' with the image of a strong, durable rock that forms in a marine environment.

3. mnemonics
   

   - Use the mnemonic 'Gray rock, wakelike grains' to help remember the definition of graywacke.

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