Study 62 18 weathering, erosion, and mass wasting flashcards from kelsey h. Ensure that you have accessed the resources denudation, weathering and mass wasting to be certain that you are adequately prepared for this quiz. The impact of weathering and mass wasting on the landscape external processes are capable of wearing down anything internal forces can build. Weathering and mass wasting quiz ensure that you have accessed the resources denudation, weathering and mass wasting to be certain that you are adequately prepared for this quiz. This process involves both decomposition chemical breakdown and disintegration physical breakdown of rocks and minerals. Mass wasting refers to the downward movement of soil, regolith andor bedrock because of gravity. Increased water content within the slope is the most common masswasting.
Click to view the presentation in html online lecture pt. Introduction mass wasting the downslope movement of. Mass wasting results when the force of gravity acting parallel to a slope exceeds the strength of that slope. Weathering, mass wasting movements, erosion and transportation are included in denudation. This process involves both decomposition chemical breakdown and disintegration physical breakdown of. Weathering is the process that changes solid rock into sediments. What is sudden, rapid movement of large masses of soil and rock under the influence of gravity on steep slopes called.
Processes and forms of mass wasting mass wasting processes can occur through four actions 1. Weathering, soil, erosion, and mass movement unit plan. Weathering factors earthquakes mass wasting earths surface weathering process pollution flooding volcanic activity glaciers types of rocks weathering rates sediment deposit gravitational force process transport deposition as a constructive process weathering gravity catastrophic events mass wasting landforms topographic maps. Mass wasting can be hazardous and often results in the loss of life and property. Gravity pulls rocks, soils and debris on a downward slope naturally without any chemical change.
The chief products of chemical weathering are stable quartz, clay minerals and dissolved minerals. Mass wasting includes all processes by which masses of rock and soil move downslope. Research geological sciences department california. Gravity pulls rocks, soils and debris on a downward. Powerpoint click to download the ms powerpoint file 39 mbytes. Varieties of these are called earthflows, mudflows, and debris avalanches. Weathering, soil, erosion, and mass movement unit plan unit. Weathering, erosion, and mass wasting flashcards quizlet. Mass wasting is the downslope movement of masses of earth materials. Shear strength is proportional to how solid the mass is, the density of plant roots, the amount of water present, and the roughness of the particles in the mass.
Mass wasting, erosion, and weathering powerpoint teaching. Mass wasting denudation generally commences with mass wasting, which is the downslope movement of weathered rock debris under gravity without the need for moving streams of water, ice or air. With weathering, rock is disintegrated into smaller pieces. That includes all earth materials, rock and regolith. If you continue browsing the site, you agree to the use of cookies on this website. A rockslide or landslide is a common example of mass wasting, as a large quantity of loose rock or soil rolls or slides down a slope. Chapter 4 weathering and soil western oregon university. Increased water content within the slope is the most. Weathering, soil, and mass wasting flashcards quizlet. Notes 14bb notes 14bb erosion is a general term for the removal of rock or mineral particles from exposed surfaces by water, air or ice, or by other particles carried by these agents. When the soil is completely saturated with water the individual particles are almost suspended in the water and move easily over one another and over the underlying rock the soils acts like a liquid and a soilflow or. Topics include physical weathering, chemical weathering, and mass wasting.
Rock falls occur when loose rock splits off of high cliffs. Weathering and mass wasting weathering sedimentary rock. Weathering, erosion, mass wasting hcc learning web. What is slow movement of soil under the influence of gravity that is aided by freezeingthawing cycles called. When earth material moves down a hillside as a fluidlike mass, it is called an earthflow. Mass wasting refers to the downward movement of soil, regolith and or bedrock because of gravity. Weathering, mass wasting, and erosion james zollweg. These forces, though often miniscule, act over time to inexorably wear away at the. Notes 14bb notes 14bb erosion is a general term for the removal of rock or mineral particles from exposed surfaces by water, air. Click to view or download the presentation in pdf 34 mbytes. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Weathering, erosion, mass wasting to print or download this file, click the link below. Jun 06, 2017 explain the difference between weathering and mass wasting. Weathering, soil, erosion, and mass movement unit plan unit plan. Erosion is the removal of sediments by natural processes e. Flow caused by weak internal cohesion as well as exceeding the threshold angle of repose 4. It occurs when soil or rocks are carried away, not by wind or water, but by falling or sliding downwards. Mass wasting or mass movement is the movement of a large mass of rock, soil and debris downward due to the pull of gravity. In recent years, the definition of mass movement has been enlarged to include mass wasting processes or natural erosion and the slow submerging of the earths ground surface. This is one of the central concepts of this course. In the daytime, temperatures in the spring and fall tend to be above freezing, which. Start studying weathering, erosion, and mass wasting. Mass wasting is a unique geomorphological process destabilizing the surface rocks and soil mass. This quiz tests your knowledge of the processes involved in weathering and mass wasting.
Landslides, mudflows and rockfalls, all belong to this category of geomorphic processes. Powerpoint as a starting point for notes over weathering, erosion, and mass wasting. Apr 01, 2019 weathering and soils class lesson downloads. While these topics may appear to be disparate, you will learn how they are inherently related. To introduce students to the weathering processes that shape our world and allow students to make connections between these weathering process and. Mass wasting the downslope movement of material resulting from the force of gravity. Weathering the disintegration and decomposition of material at or near the surface mass wasting the transfer of rock material downslope under the influence of gravity erosion the incorporation and transportation of material by a mobile agent, usually water, wind, or ice. To introduce students to the weathering processes that shape our world and allow students to make connections between these weathering process and those we see on a day to day basis. The four forces of erosion are water, wind, glaciers, and gravity. Mass wasting is a specific type of erosion that is caused by gravity. Explain the difference between weathering and mass wasting. Terms in this set 99 weathering, mass wasting, and erosion are all part of what process.
What is the difference between weathering and mass wasting. This downward movement is called as mass movement or masswasting. This class exercise is an opportunity for students to apply textbook information about weathering and mass wasting to local and nationallyrecognized surface features, such as stone mountain ga, half dome ca, and others. In this chapter we discuss the external forces at work on the landscape. Weathering is the break down of rocks into smaller components by atmospheric and biotic agents mass wasting is the relatively shortdistance downslope movement of broken rock material due to gravity erosion is more extensive and involves more long distance. Sep 06, 2017 weathering, mass wasting, and erosion james zollweg. A search of the document itself finds only three standards related to weathering, mass wasting, erosion, and landscape change. Ppt weathering, mass wasting, and erosion powerpoint. Learn about the process of mass wasting, the factors that must be. This is a slow, gradual but more or less continuous movement of soil down the hill slopes. Jul 28, 2015 powerpoint as a starting point for notes over weathering, erosion, and mass wasting. Types of mass wasting include creep, slides, flows, topples, and. Mass wasting the transfer of rock and soil downslope under the influence of gravity. These flows typically occur in humid areas on steep slopes with thick.
Weathering, mass wasting, and erosion 1 weathering, mass wasting, and erosion in previous chapters we discussed the internal processes that create relief. This website is great and very detailed, use it to help you fill in the notes sheets below. Loss of life and property from masswasting events can be prevented or mitigated by adequate assessment and planning based on geologic studies of previous occurrences. Taking a look at how rocks like to follow their own slippery slope, this quiz and corresponding worksheet will help you gauge your knowledge of the types of mass wasting and erosion. In utah, they are common in the spring and fall because of freezethaw weathering.
Define and describe the processes of weathering and erosion, including examples of negative and beneficial effects of these processes. Mass wasting, also known as slope movement or mass movement, is the geomorphic process by which soil, sand, regolith, and rock move downslope typically as a solid, continuous or discontinuous mass, largely under the force of gravity, frequently with characteristics of a flow as in debris flows and mudflows. Use examples to explain the difference between mechanical and chemical weathering and the. Masswasting is a unique geomorphological process destabilizing the surface rocks and soil mass.
Weathering, mass wasting, erosion, and landscape change. Sep 27, 2011 weathering, erosion, and mass wasting slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. A rock fall are the fastest of all landslide types and occurs when a rock falls through the air until it comes to rest on the groundnot too complicated. Denudation lowering of the surface of the continents. Weathering, soil, and mass wasting after reading and studying ch. Weathering is a process of a slow continuous breakdown of rocks into smaller particles that are in equilibrium with the prevailing environment bland and rolls 1998. Earths external processes weathering the physical breakdown disintegration and chemical alteration decomposition of rock at or near earths. Mass movement or mass wasting is a natural phenomenon initiated by the force that attracts any object with mass. Types and causes of mass wastingmass movement of rocks.
Weathering and mass wasting free download as powerpoint presentation. C1 processes associated with weathering and mass wasting. Answers weathering is the breaking down and decomposition of solid rocks at or near the earths surface by physical and chemical processes without movement while mass wasting is the displacement or movement of weathered materials downslope under the influence of gravity. To print or download this file, click the link below. Once these sediments are separated from the rocks, erosion is the process that moves the sediments away from its original position. Weathering and mass wasting are controlled by the nature of the material and the conditions in which the material is exposed e.
Mass wasting involves the slipping, slumping, falling and flowing of soil or rock down a slope. California state university, long beach 1250 bellflower boulevard, long beach, california 90840. Types of mass wasting a rock fall are the fastest of all landslide types and occurs when a rock falls through the air until it comes to rest on the groundnot too complicated. Weathering and mass wasting weathering sedimentary. Mass wasting may also cause physical weathering by causing rocks to shatter on hitting the ground or rub against each other while rolling and sliding. Swelling caused by expansion of clay or through frost action types of mass wasting. It could be rapid snowmelt, intense rainfall, earthquake shaking, volcanic eruption, storm waves, rapidstream erosion, or human activities, such as grading a new road.
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