Geological sciences department, california state university, long beach. Lesson outline study guide for introduction to physical geology. Worksheet mass movement editable earth science, earth. Mass movement deposits are shown in green on the superficial geology map of the falkland islands. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Slope angle weathering and climate water content vegetation overloading geology vs slope stability triggering events. Brief summary of mass movement while looking at soil creep and bogburst. In this lesson, we will look at what causes mass movement, the types. Mass movements also called masswasting is the downslope movement of regolith loose uncemented mixture of soil and rock particles that covers the earths surface by the force of gravity without the aid of a transporting medium such as water, ice, or wind. Formerly, the term mass wasting referred to a variety of processes by which large masses of crustal materials are moved by gravity from one place to another. Engineering geology mass wasting is the down slope movement of rock and regolith near the earths surface mainly due to the force of gravity. Landslides, mass movements geology 209 with hildebrand at university of calgary studyblue flashcards. Shallow debris slides and boulder falls are common in less. This worksheet has 20 earth science regents questions about the mass movement.
Wasting is the movement of rock and soil down a slope due to the force of gravity. About 10 years ago, a friend was looking to purchase a new home in san diego. Of course geological agents such as water, wind and ice all work with gravity to cause a leveling of land. There are both multiple choice and short answer questions. Definition the bulk movement of weathered and broken rock. Mass movement and landscape evolution in weathered granite.
It is a significant part of the process of erosion because it moves. 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. A landslide is the movement of an unstable mass of rock, unconsolidated earth, or debris down a slope. Political movements that typically advocate the creation of a mass movement include the ideologies of communism and fascism. Processes of downslope movement of surficial earth materials under the pull of gravity are collectively termed mass wasting.
Mass movement or mass wasting is a natural phenomenon initiated by the force that attracts any object with mass. The two major types of slides are rotational slides and translational slides. Mass movement is the movement of surface material caused by gravity. Mass movement is the down slope movement of earth materials under the influence of gravity. Translational slides landslides discovering geology. Translational slides translational slides like the layers of caramel shortbread slipping over one another in the hot sun, in a translational landslide the mass moves along a roughly planar, flat, surface with little rotation or backward tilting. This page last updated on 29oct2015 eens 1110 physical geology tulane university prof. Gravity the force of gravity provides the energy that causes material to move downhill. Mass movements and mass movement processes mass movements and their human impacts mass movement is defined as the down slope movement of rock and regolith near the earths surface mainly due to the force of gravity. Proper design during construction projects can eliminate the potential for increased mass wasting.
Mass movements are an important part of the erosional process, as it moves material from higher elevations to lower elevations where. Mass movement causes regolith and rock to move downslope where sooner. Questions relate to the effect of gravity on erosion and deposition, landslides, soil creeps, mud flows, avalanches, rock falls, angularunsorted sediments, and t. Define and interpret the causes, types, effects and hazards of mass movement and land subsidence. Mass movement involves the movement of material such as soil, rock, mud or snow, down a slope under the influence of gravity. Watch the video, take notes, listen in for key tips on how to write your geography answers and. Mass movement, also called mass wasting, bulk movements of soil and rock debris down slopes in response to the pull of gravity, or the rapid or gradual sinking of the earths ground surface in a predominantly vertical direction. 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. It is an important part of the erosional process, as it moves material from higher elevations to lower elevations where transporting agents like streams. Deposition is the process by which weathered and eroded materials. This downward movement is called as mass movement or masswasting. The rate of landslide movement ranges from rapid to very slow. You will also be exposed to the various types of mass wasting, their causes and their effects.
Powered by create your own unique website with customizable templates. She found a great neighborhood being built on the side of a mountain overlooking the town. A mass movement denotes a political party or movement which is supported by large segments of a population. Mass movement is the downslope movement of material rock and soil under the force of gravity. Media in category mass movements geology the following 16 files are in this category, out of 16 total. A variety of massmovement processes interact to form complex massmovement terrains in the western cascade range in oregon. Although many types of mass movements are included in the general term landslide, the more restrictive use of the term refers only to mass movements, where there is a distinct zone of weakness that separates the slide material from more stable underlying material. Three major types of mass wasting are classified by the type of. It could be rapid snowmelt, intense rainfall, earthquake shaking, volcanic eruption, storm waves, rapidstream erosion, or human activities, such as grading a new road. Slow, deepseated 5 m depth processes of creep, slump, and earthflow operate simultaneously and sequentially, resulting in unstable conditions that may initiate rapid, shallow extra onegeology kids earth processes mass movements slides. Pdf masswasting is a unique geomorphological process destabilizing the surface rocks and soil mass.
Both communists and fascists typically support the creation of mass movements as a means to overthrow a government and create their own government, the mass. It is the umbrella term for a wide range of specific movements including landslide, rotational slumping and blockfall. Landslides, mass movements geology 209 with hildebrand. Hidden camera investigation on what really happens to your car cbc marketplace duration. Mass movements can be divided into four main classes.
Formerly, the term mass wasting referred to a variety of processes by. Mass movements and mass movement processes tulane university. It has a strong emphasis on examples from western canada, especially british. Erosion, removal of surface material from earths crust, primarily soil and rock debris, and the transportation of the eroded materials by natural agencies such as water or wind from the point of removal. Mass movements earth processes onegeology kids extra. We also acknowledge previous national science foundation support under grant numbers 1246120, 1525057, and 14739. A slide happens when a section of soil or rock suddenly gives way and moves down a. Mass wasting, sometimes called mass movement, is the downward movement by gravity of rock, regolith loose, weathered rock andor soil on the sloped top layers of the earths surface. Physical geology, by steven earle streams and floods mass wasting take mass movement and rivers homework quiz in canvas.
Mass movement blockfall, rotational slumping, landslides is important on some coasts with weak andor complex geology. Slope failure, also referred to as mass wasting, is the downslope movement of rock debris and soil in response to gravitational stresses. Choose from 500 different sets of geology chapter 8 mass movements flashcards on quizlet. In this section, you will learn the term mass wasting. Internal cohesion strength the characteristic property of a. A block diagram of an earth flow where movement is a combination of slip and flow. Study 33 landslides, mass movements flashcards from mary g. Causes of mass movements mass wasting is caused by gravity. 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. A landslide can involve large or small volumes of material. As terrain becomes more mountainous, the hazard increases in developed nations impacts of masswasting or landslides can result in millions of dollars of damage with some deaths in less developed nations damage is more extensive because of population density, lack of stringent zoning laws, scarcity of. Types and causes of mass wastingmass movement of rocks. Physical geology 2nd edition by steven earle is licensed under a creative commons attribution 4. Usually more than one factor is involved in the failure of a slope.
Pdf masswasting is a unique geomorphological process destabilizing the. Nelson mass movements mass movements also called masswasting is the downslope movement of regolith loose uncemented mixture of soil and rock particles that covers the earths surface by the force of. Steep and unstable slopes are more likely to have a mass movement than gentle and stable slopes. Mass movementoccurs when the force of gravity exceeds the strength of the material and it moves downslope. They loved the area, the view and the home so they purchased the home site. The style of slope failures varies depending on local relief and the grade of weathering, which mutually influence each other. Complex massmovement terrains in the western cascade. Knowledge about the relationships between local geology and mass movement. Slopes comprise 1015% of the earths surface and are a major pathway for sediment movement to the deep ocean floor. Research geological sciences department california. Environmental geology geol 406506 module 4 landslides, slope failure, and other mass wasting processes.
Mass movement processes are the dominant modes of mobilization, transport and deposition. Engineering geology masswasting is the down slope movement of rock and regolith near the earths surface mainly due to the force of gravity. Physical geology is a comprehensive introductory text on the physical aspects of geology, including rocks and minerals, plate tectonics, earthquakes, volcanoes, glaciation, groundwater, streams, coasts, mass wasting, climate change, planetary geology and much more. Slope the steeper the slope, the downslope pull angle of repose steepest angle at which a pile of unconsolidated grains remains stable and controlled by frictional. Mass wasting is the transfer or movement of rock or soil down slope primarily by gravity. Increased water content within the slope is the most common masswasting. The detachment and movement of earth materials occurs if the stress imposed is greater than the strength of the material to hold it in place. Learn geology chapter 8 mass movements with free interactive flashcards. The classes are based on how quickly the rock and sediment moves and how much water there is. Landslides and rockfalls are examples of very sudden movements of this type. That includes all earth materials, rock and regolith.
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