Nobody downloaded yet

Weathering - Research Paper Example

Comments (0) Cite this document
Summary
Weathering, or “the process of breaking down a rock” (Codrington 252), is an important geological process that initiates soil formation aside from mineralization and humification and organo-mineral complex formation…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER95.6% of users find it useful
Weathering
Read TextPreview

Extract of sample "Weathering"

Download file to see previous pages The rate of weathering is also affected by various factors such as climate, geology, relief, soil or vegetation cover, as well as human activity. Research studies regarding the causes and effects of weathering continues and play a vital role in understanding the history of earth movement and development. Weathering is defined as group of slow processes by which surface rocks are broken into smaller pieces or dissolve into water as caused by the impact of the atmosphere and hydrosphere. It is considered as the primary stage in the denudation of the landscape since rocks are loosened by the weathering process. The length of time that rocks and minerals have been exposed at the surface of the earth will dictate the degree to which they have weathered. Pushkar (799) explained the process of weathering: Soils are derived from the parent rocks by the process called weathering. Formation of soil is initiated by disintegration or weathering of parent rocks by certain physical, chemical or biological agents. As a result, soil-forming rocks are broken down into small particles called regoliths, which finally develop into mature soil by pedogenesis. After the loosened rock particle moves due to flowing agents specifically air, water or ice, erosion or mass wasting occurs. Erosion refers to the “movement down slope due to gravity” (US Geological Survey National Park Service). Physical weathering or mechanical weathering is a type of weathering in which the breakdown of rock relies solely through mechanical forces such as freeze thaw, pressure release, thermal expansion, salt crystallization, sand blast, and glaciation, which do not alter the chemical composition of the rock. Freeze thaw refers to the breakdown of rocks as a result of the expansion of water during freezing which is common in places where temperature often fluctuates around zero degrees Celsius like in upland Britain. This procedure is most effective in jointed rocks particularly granite. Pressure release or dilation happens when weathering and erosion removes overlying rocks. The released pressure expands the rocks, making it to have fractures which weaken the rocks as they become susceptible to weathering agents. Sheeting of rock follows when cracks develop parallel to the surface. Thermal expansion, also called as insolation weathering, results from large diurnal temperature ranges that influences heating and cooling of the rock. The rock expands when heated and contracts when cooled. The changes caused by differing temperature results in stresses in the rock layers. Salt crystallization takes place when saline water passes through crevasses and joints in rocks, evaporates, and salt crystals are formed as the dissolved salts crystallize. The crystals can cause granular disintegration or the gradual breaking off grains of rock. Sand blast occurs in arid and desert conditions when wind and sand disrupts rocks. Lastly, glaciation or ice formation corrodes and breakdown rocks into sand particles as the melting of ice during summer season move downwardly on the slopes and produces glacier movement (Codrington 252). On the other hand, chemical weathering is defined as “the decomposition of a rock by alteration of its chemical composition” (Codrington 252). The processes of chemical weathering are solution, hydrolysis, chelation, hydration, carbonation and oxidation-reduction. Solution involves the removal of certain mobile components of rocks for instance, calcium sulphates and chlorides, making the rocks porous and easy to disintegrate. Hydrolysis breaks down or washes out components of rocks such as alumina silicates and silicon which leads to simpler mineral matter like ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Weathering Research Paper Example | Topics and Well Written Essays - 1000 words”, n.d.)
Weathering Research Paper Example | Topics and Well Written Essays - 1000 words. Retrieved from https://studentshare.org/geography/1460259-weathering
(Weathering Research Paper Example | Topics and Well Written Essays - 1000 Words)
Weathering Research Paper Example | Topics and Well Written Essays - 1000 Words. https://studentshare.org/geography/1460259-weathering.
“Weathering Research Paper Example | Topics and Well Written Essays - 1000 Words”, n.d. https://studentshare.org/geography/1460259-weathering.
  • Cited: 1 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Weathering

Plate Tectonics and Weathering and Erosion

..., street lamps fall on them. The safest position and place that person should take is to press to interior wall or to the corner. Also to get under a table or bench can safe from falling objects. Consequently, it is impossible to avert an earthquake, but it is essential to help oneself to overcome it. Keeping in mind mentioned basic rules may prevent people from doing fateful mistakes that in its turn will give additional chance for survival. Weathering and Erosion Nature is the most wonderful and amazing thing that presents picturesque landscapes, bewitching sky and striking feelings of freedom. Being not very persnickety, I think that there is no bad season and each type of weather is beautiful in its...
2 Pages(500 words)Essay

Erosion, weathering, mass wasting. Earth's Interior Geologic Time Scale

...? 9 November Earth Science 1 Erosion Erosion occurs when wind or water blow/wash away the topmost fertile layer of soil. As fertile land loses its fertility due to soil erosion, it is difficult to grow crops on eroded lands. Apart from affecting crops, erosion also weakens land, causing buildings to collapse. Soil erosion can be prevented by planting windbreaks. Windbreaks are lines of planted bushes and plants that hold soil firmly with their roots and prevent it from being washed away. Other methods include terracing, in which level plains are cut on hillsides and crops are grown on these plains. (wikipedia.org) 1. 2 Weathering Weathering is the process of decomposition or breakdown of soils and rocks...
4 Pages(1000 words)Assignment

Physical Weathering, Erosion and Mass Wasting

...? Physical Weathering Geological processes are important in shaping the earth as they create bodies of water and land forms throughout the history of the Planet Earth. Various factors have contributed to the shaping of the planet to what it is now (Stoker 4). They have influenced the way organisms live with their surroundings. One of the geological processes is weathering. It is considered to be the process of disintegrating rocks and other land materials into finer particles which is usually soil. The process requires various conditions and contact to commence (Craghan 162). Organisms, water and air may be needed for weathering to occur. Weathering happens without motion...
3 Pages(750 words)Essay

Arizona's Petrified Forest/ Painted Desert: Rock types, Fossils, Stream Systems, Weathering, Geologic Structures, Geological Time

...and Fauna. The animal life includes mammals, amphibians, birds and reptiles. Most of the animals are nocturnal (active at night) but the other animals are “diurnal” (active during the day) The seasons and weather play a major role in determining the activities of these animals. Activity changes according to the seasons. Some of the animals are "Crepuscular" in nature and therefore venture out at dawn and dusk because they cannot withstand the high temperatures during the summer time and they also avoid other predators. Plants add to the scenic beauty of the Petrified forests, though much of them have become fossils. Besides being a haven for the animals plants help to change the carbon – di – oxide in the air into oxygen...
6 Pages(1500 words)Essay

Steel Construction: Weathering steel - advantages disadvantages

...Weathering steel: Introduction: “Weathering steels or weather resistant (WR) steels are colloquial terms used to describe structural steels with improved atmospheric corrosion resistance.” (Corus, 2005). Weathering steel is indeed a group of steel alloys that when exposed to open air, oxidize to develop a rusty, dark brown protective layer that keeps the steel from oxidizing further, thus stabilizing the oxidation and obviating the need for the steel to be coated and protected with paint. It is essentially a low-alloy steel with high strength. Weathering steel is also known as Indaten or Cor-Ten (www.constructalia.com, 2010). Its mechanical properties are...
8 Pages(2000 words)Research Paper

Weathering and Mass Movement

...Weathering and Mass Movement Affiliation Weathering This is the alteration and breakdown of the minerals and rocks on the surface of the earth’s crust to more equilibrium products with the conditions found on the environment. Lot of rocks and minerals are found deep within the earth’s crust where pressures and temperatures are different from those at the surface. Because of the disequilibrium these materials are decomposed eroded, and attacked by physical and chemical processes. Weathering is the first step to geomorphic and biogeochemical processes. Weathering is in three mechanism processes: chemical, physical, and biological and all theses take place together....
1 Pages(250 words)Essay

Leatherbarrow & Mostefavi, On Weathering: The Life of Buildings in Time

...Leatherbarrow & Mostefavi, On Weathering: The Life of Buildings in Time Leatherbarrow and Mostefavi argue that obsession with the image of a building is closely related to weathering. In their article, they refer to image as the “finish” of a building or structure, attractive aspect of the building1. The authors state that weathering does two important things when it comes to image: subtraction and addition. Weathering subtracts the finish of architecture and construction, and adds the finish of nature (or the environment). In this regard, the final image of a building is usually not what it looked like at the time it was completed, but what it will look like after...
1 Pages(250 words)Research Paper

Geography

...Geography Geography Q1. What determines the resistance of silicate minerals (silicate rocks) to weathering rates? According to White (2003), over 90 percent of rocks exposed on the earth’s surface are made up of silicates. The strength of the bonds within silicate rocks determines the weathering rate. According to Velbel (1999), the classification of silicate minerals is founded on the number corners per tetrahedron shared with neighboring tetrahedral. The rate of weathering is silicate rocks depend on the extent of connectedness between the rock particles. “The more polymerized the silicate mineral’s structure, the more resistant to weathering it appears to be” (Velbel,...
1 Pages(250 words)Assignment

Weathering in Empty Quarter in Saudi Arabia

...Weathering in the Empty Quarters of Kingdom of Saudi The Empty Quarters of Kingdom of Saudi Arabia are considered as one of the harshest climates to survive. It is a dry stretch of land that is dominated by sand which is obviously a product of weathered rocks. Weathering is a geological phenomenon; it deals with the breakdown of rocks. There are two main types of weathering; they include physical weathering and chemical weathering. In physical weathering the composition of rocks or particles do not get affected, only their size is reduced, meanwhile in case of chemical weathering the breakdown of rocks...
1 Pages(250 words)Essay

Geomorphology Lab 3

...Introduction The degree of tombstone weathering is figured to rely on various factors given that the some tombstone stayslonger than others do. One of the major the factor that can be measured effectively is the age of the gravestone. Through calibrated relative dating, that involves dating them relative to each other, the age of the tombstones can be arrived at. Other factors that affect weathering degree of a tombstone include type of rock, height, length and thickness. Through exploring these factors, the knowledge about the degree of weathering on tombstones is established. Further, a model for predicting age can be succinctly tested based on weathering degree. As...
2 Pages(500 words)Lab Report
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Research Paper on topic Weathering for FREE!

Contact Us