Weathering

Soil Erodibility Factor (K) The soil erodibility factor (K), a measure of the susceptibility of soil to erosion under standard conditions, is a function of the percentage of silt and coarse sand, the soil structure, the permeability of the soil, and the percentage of organic matter. Wischmeier et al. (1971) defined the soil erodibility factor mathematically and Foster et al. (1996) converted the equation into the following SI unit equation: The soil erodibility factor (K) is determined for each soil sample based on analysis of soils in laboratory. The equation (Wischmeier and Smith, 1978) mentinoned is below. K = ((2.17 × 10-4) × (M1.14) × (12-a) + 3.25 × (b - 2) + 2.5 × (c - 3)) × d [5] where M = (percentage of silt and fine sand) × (100-percentage of clay), a is the organic matter content (%), b is the soil structure (1–4), and c is the permeability grade (1-6), d is the coefficient of converting (d=1.292). Soil samples collected from the determined points were marked using GPS. The K factor values of the soils were determined for each soil series from 85 samples, their K factors are changing between 0.22-0.37. Basin K factor map is given in Figure 6. Slope Length and Steepnes Factor (LS) Slope length and slope steepness strongly influence the transport of soil particles once the soil particles are dislodged by raindrop impact or runoff. Because the LS-factor can be defined to be substantially greater than unity, it can have a considerable effect on the predicted…

Jacari smith Weathering Lab purpose: The purpose of this lab is to investigate the processes of mechanical and chemical weathering. Hypothesis: What will happen to the sugar cubes after shaking. Materials: Sugar cubes (5), Shaker bottles, Digital scale Procedures:1. First u need to shake the 5 sugar cubies and put the information the table 2. Draw a picture of…

Martha Garcia November 10, 2017 Chemical Weathering Background Chemical Weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. It occurs in almost all types of rocks, smaller rocks are susceptible, because they have greater surface area, more common where water is, because water is important to many of the chemical reactions, when water is slightly acidic, which is called ocean acidification. Ocean acidification is…

Weathering is the breaking down or dissolving of rocks and minerals on earth’s surface. Natural substances like water, ice, acids, salt, plants animals, and changes in temperature are all different targets for weathering. After the material is broken down or dissolved, erosion occurs. Erosion transports the bits and pieces of material away. Every rock on earth’s surface will be weathered in some way because they are not tough enough to resist weathering. The two types of weathering is…

Carbonation is another type of chemical weathering. Carbonation is the mixing of water with carbon dioxide to make carbonic acid. This type of weathering is important in the formation of caves. Dissolved carbon dioxide in rainwater or in moist air forms carbonic acid, and this acid reacts with minerals in rocks. chemical weathering tends to be different sorts of chemicals mixed together to form a material. Rust is a good example of what chemical weathering can do. With an increase in…

The problem I have is erosion. Erosion is a natural thing that happens in a process called weathering. Erosion is when the reduction of landforms which then are exposed to forces of weathering. Erosion causes many problems in the world like how it washes away valuable fertilizer washing it into lakes and rivers and may cause fish to die off or it may go into human drinking water poisoning humans. It also shows a threat to our food supply which comes from farms and causes us humans not to have…

glaciation, and weathering and erosion. Tectonic plates in CT formed three major landforms. One of the three landforms is the Appalachian mountains. This mountain range is a convergent boundary. Convergent boundaries means that the two plate collide into each other pushing up the land and create the mountains (as shown in the diagram). Finally, the last landform the tectonic plates created is the CT river valley or rift valley. A rift valley is a fault line in the ground usually with steep…

most important climatic components are Moisture and Temperature which effect due to its amount and seasonal distribution. The kind of climate determine the nature of weathering process and the rate of physical and chemical processes forming the different properties of soil. 1. Moisture Moisture content is the quantity of water contained in the soil which can be influenced directly by precipitation and Evaporation. Well, the definition of precipitation is any form of water - liquid or solid -…

Other records of seawater chemistry provide supporting evidence for changes in tectonic activity and enhanced continental weathering during the formation of the Great Unconformity. For example, the average 87Sr/86Sr of sea water increased during the Neoproterozoic (Fig. 4). This long-term signal is attributable to the increasing concentration of 87Sr in continental crust due to the decay of 87Rb, and to the long-term erosion and progressive exposure of 87Sr-rich granitic rocks required to form…

000 years ago, water rushed through the cave, Howe Caverns, and the water rolled boulders and rocks. Clay and till got deposited where the river slowed down. Other cave features like stalactites, stalagmites,and flowstone formed. There are ripple features caused by mechanical weathering in the cave. The Connecticut River is wide, and deep with dark murky water. It has meanders and floodplains, and the meanders conclude that the river is old. The Hudson River is very wide, deep, with blue clear…