Karst environments and their denudation processes Analytical Essay

Looks at the main denudation processes at work in Karst environments and describes how these processes shape the environment.
# 151750 | 1,480 words | 9 sources | APA | 2009 | ZA
Published on Sep 16, 2012 in Geology and Geophysics (Earth) , Geography (General)


$19.95 Buy and instantly download this paper now

Description:

This paper explains that a chemical weathering process, called solution, in which carbonate sedimentary rock is broken down thus changing its physical chemistry and gradually moving it away. is the main denudation process involved in Karst landscapes. Next, the author investigates the ways in which solution shapes the environment by looking at three types of Karst landforms, such as surface features, drainage features and underground depositional features. The paper concludes that unique Karst topographies are formed not only because of different patterns of precipitation, rock types and temperature but also because of the stage of topographical evolution of the landscape. Several figures are included in the paper.

Table of Contents:
Introduction
The Process of Solution
Additional Factors Influencing Solution
Karst Landforms
Surface Features
Drainage Features
Underground Depositional Features
Karst Topography
Conclusion

From the Paper:

'Underground depositional features occur when the chemical process of solution is reversed and minerals are precipitated in underground open spaces. Open spaces are filled with air when the water table drops and the openings formed through solution fill with air. When groundwater drips through the cracks found in the cave roof it contains more carbon dioxide than the air around it. In order for equilibrium with the air to be obtained the carbon dioxide diffuses out the dripping water. Because the amount of carbonic acid and calcium is reduced by such diffusion the water becomes saturated with calcium bicarbonate and precipitation occurs. The underground depositional features formed as a result of this precipitation are collectively referred to as speleothems.
'Many varieties of speleothems are found in caves and their distinctive shapes and location depend on the movement of depositing water (Denka, 2004). For example, stalactites are formed when carbon dioxide escapes as a result of evaporation and calcium carbonate crystallizes in small amounts. The next drop adds a little more calcium carbonate and eventually a cylindrical shape forms in a downward movement. Water dripping from the tip of the stalactite precipitates extra calcium carbonate on the floor.'

Sample of Sources Used:

  • Briggs, D., Smithson, P., Addison, K. and Atkinson, K., 1997: Fundamentals of the Physical Environment, 2'nd Ed., Butler & Tanner Ltd, Great Britain.
  • Cool School - Online Content Development, "Weathering and Erosion" < http://www.coolschool.ca/lor/GEO12/unit4/U04L01.htm> (8 April 2008)
  • Deka, P., 2004: Geography: Physical and Human, 2'nd Ed., New Age International Publishers, New Delhi.
  • Geoscape Nanaimo, "Karst, what is it?" < http://web.mala.bc.ca/geoscape/Karst.htm> (8 April 2008)
  • Hamblin, W.K. and Christiansen, E.H., 2001: Earth's Dynamic Systems, Prentice Hall, New Jersey.

Cite this Analytical Essay:

APA Format

Karst environments and their denudation processes (2012, September 16) Retrieved September 22, 2019, from https://www.academon.com/analytical-essay/karst-environments-and-their-denudation-processes-151750/

MLA Format

"Karst environments and their denudation processes" 16 September 2012. Web. 22 September. 2019. <https://www.academon.com/analytical-essay/karst-environments-and-their-denudation-processes-151750/>

Comments