1 / 11

HIGHER GEOGRAPHY LITHOSPHERE LIMESTONE SCENERY

HIGHER GEOGRAPHY LITHOSPHERE LIMESTONE SCENERY. There are several types of limestone in Britain - this presentation will concentrate on Carboniferous Limestone and look at the Yorkshire Dales in particular.

kamuzu
Download Presentation

HIGHER GEOGRAPHY LITHOSPHERE LIMESTONE SCENERY

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. HIGHER GEOGRAPHY LITHOSPHERELIMESTONE SCENERY

  2. There are several types of limestone in Britain - this presentation will concentrate on Carboniferous Limestone and look at the Yorkshire Dales in particular.

  3. These limestones were formed from the fossilised remains of countless marine plants and animals, such as corals, which lived during the Carboniferous period, 345 - 280 million years ago. These former sea beds were moved from the equator due to continental drift and forced upwards during the Hercynianorogeny or mountain building period, 280 - 230 million years ago.

  4. Britain during the Carboniferous. Here, on the Great Barrier Reef off the Australian coast, is the world’s biggest expanse of coral reef.

  5. Brain coral, one of the main reef building species.

  6. The Dolomite mountains in the Alps - these 3000 metre peaks are made of limestone and were once the bed of the sea!

  7. Limestone - Chemical weathering • Limestone = Calcium Carbonate • Rainwater = Carbonic Acid • Carbonic Acid dissolves Calcium Carbonate • This is called CARBONATION, a type of solution weathering. • Or … H2O + CO2= H2CO3 • CaCO3 + H2CO3 = Ca(HCO3)2 Calcium Carbonate Dilute Carbonic Acid Calcium Hydrogen Carbonate (Soluble)

  8. Carbonation / solution weathering also attacks buildings made from limestone

  9. This type of landscape is more correctly known as Glacio Karst - glacio because it has also been glaciated, and karst after an area in Slovenia, which gives its name to this kind of landscape.

  10. The dry, barren landscape of limestone country.

  11. Follow the arrows to see the route taken by streams.

More Related