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Rocks and Landscapes

Rocks and Landscapes. Chapter 7. Limestone features. The Burren , Co. Clare. Karst. The word Karst means exposed or bare ground. It is used mainly to describe a Limestone area where this karstic landscape can be seen . Characteristics of Karst regions. Lack of rivers

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Rocks and Landscapes

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  1. Rocks and Landscapes Chapter 7

  2. Limestone features The Burren, Co. Clare

  3. Karst The word Karst means exposed or bare ground. It is used mainly to describe a Limestone area where this karstic landscape can be seen.

  4. Characteristics of Karst regions • Lack of rivers • Swallow holes on the surface • Dolines • Underground water

  5. Why are limestone areas…karst areas? Because limestone is…….. • Permeable • Well jointed • Has bedding planes • Chemically weathered by…… • …..carbonation

  6. Carbonation of Limestone

  7. If you go down to a karst area today……

  8. Limestone features • Overground features: • Limestone pavement with clints, grikes and karren • Terraces • Swallow holes • Dolines / Sinkholes • Turloughs

  9. Limestone Pavement

  10. clints

  11. Grikes

  12. Karren

  13. Terrace

  14. Limestone features • Underground features: • Caves and passages • Stalactites • Stalagmites • Pillars • Curtains • Streams

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