Mass Movements and Their Human Impacts Mass Movement is defined as the down slope movement of rock and regolith near the Earth’s surface mainly due to the force of gravity. Mass movements are an important part of the erosional process‚ as it moves material from higher elevations to lower elevations where transporting agents like streams and glaciers can then pick up the material and move it to even lower elevations. Mass movement processes are occurring continuously on all slopes; some act very
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A river changes as you move from the source to the mouth (downstream)‚ but also from bank to bank (across stream). In this essay I will be discussing how depth velocity and bedload size change downstream and across stream linking to past river theory (the Bradshaw method). Depth is defined as the distance between the surface of the river to the bottom (the river bed) this distance is measured in a straight vertical line. As you move from the source to the mouth the river depth increases. (which
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Geography Rivers 1. The speed and volume of a river varies from place to place along a river’s course because of many reasons. In the upper course‚ the volume of water is low as there are few tributaries. In comparison‚ the volume of water in the middle course is higher as there are more tributaries supplying water to the main river channel. The volume of water in the lower course is the highest as the lower course has the most tributaries. However‚ many other factors will also affect the
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Soil erosion is a major concern in the southeastern region of Nigeria due to high population densities and farming techniques‚ which has resulted in the presence of numerous gullies. While gullies are found all around the world‚ the existence of gullies in Nigeria is regarded as one of the worst environment disasters‚ having negative implications on the environment and the quality of life for humans and other species (Adetona & Ezezika‚ 2011; Ajaegwu & al‚ 2010). Large quantities of soil in Nigeria
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Explain how the processes of weathering‚ erosion‚ transportation and deposition have shaped New Zealand. New Zealand is an amazing Ever-changing land‚ full of natural wonders. But there is more to our country than this‚ much more‚ because our country is unique on Earth. Four and a half billion years have made it a country of extraordinary landforms‚ through four main processes. These processes are called weathering‚ erosion‚ transpiration and deposition. As well as our environment and physical shape
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Wildcat Creek begins just east of Kokomo in Greentown and ends at the Wabash River in Lafayette. Wildcat creek is about 84 miles long. This creek consists of three different forks‚ the north fork‚ south fork‚ and middle fork. Each fork flows in a general east-west direction. On our field trip‚ we visited the south fork. This stream runs through many different types of land typography‚ such as cropland and forests as well as developed areas. There were many different types of rocks present along this
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Describe and explain how river processes change along the long profile of a river A river changes shape as it flows from its source (where a river starts) to its mouth (where a river flows into a sea or lake). The shape of the long profile (a slice through the river from source to mouth) shows how the rivers gradient‚ height‚ energy and load changes due to erosion processes such as abrasion‚ cavitation‚ attrition‚ hydraulic action and corrosion as well as how the rivers deposition rates fluxuate
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Stretches of a river can be different in terms of their processes and landforms. Introduction: My investigation is a study of hydrology‚ as I want to find out how and why a rivers channel‚ flow and valley characteristics change as you move downstream from its upper course to its mouth. These changes are represented in the Bradshaw Model (fig 1)‚ a fluvial model that describes changes in the river channel and flow characteristics between different courses along the river. Based on three factors
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The whole purpose of this chapter is to clarify the pivotal need of geographic comprehension in society. Geography is divided mainly into two categories; human and physical geography. Each geography examines different kinds of information. Physical geography clarifies the physical landscapes of districts and places while human geography looks to break down the spatial circulation of humans and their cooperation’s. Chapter 1 summaries the significance of geography and how it influences all aspects
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Mass Movement: Mass movement is dependent on the development of instability on a hill slope when equilibrium has been disturbed. Safety Factor is a measured by ratio of resistance which the slope offers against movement (sheer STRENGHT) to the force which is trying to enact that movement (sheer STRESS) Factors affecting Sheer STRESS 1) Angle /Steepness of Slope: Inclination of slope will affect the magnitude of gravitational force enacting on the regolith. a. the larger the angle
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