Download Mass Wasting Notes Pdf
Mass wasting notes pdf free download. Mass-wasting processes include sudden slope failures (slumps, falls, and slides) and down slope flow of mixtures of regolith, water, and air •! Failures occur when shear stress reaches or exceeds the shear strength of slope materials. High water pressure in rock voids or sediment reduces shear strength and increases the likelihood of failure. Mass-wasting is a unique geomorphological process destabilizing the surface rocks and soil mass.
Gravity pulls rocks, soils and debris on a downward slope Author: A. Balasubramanian. Subaqueous Mass Movements Mass wasting processes also occur on steep slopes in the ocean basins. A slope failure can occur due to over-accumulation of sediment on slope or in a submarine canyon, or could occur as a result of a shock like an earthquake.
3 types – of mass movements are common, based on degree of disintegration of the materialFile Size: KB. The potential for mass wasting is directly related to the amount of water in the material (rock or debris etc.) – A small amount of water ‐ helps hold material together – Too much water – pushes grains apart/reduces shear strengh & material moves faster. MASS WASTING 1. INTRODUCTION Everything at or near the surface of the Earth is pulled toward the Earth by the force of gravity.
(“Gravity: it’s a law you can live with.”) That includes all Earth materials, rock and regolith. This is one of the central concepts of this course. Its importance lies in the fact that under certain circumstances those materials are moved downslope by the.
5 Mass Movement Can be either slow (creep) or fast (landslides, debris flows, etc.) As terrain becomes more mountainous, the hazard increases In developed nations impacts of mass-wasting 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.
View lec7_masswast_pdf from ANYTHING at Howard University. Mass Wasting Mass Wasting 1 Mass Wasting • Mass wasting is the downslope movement of. Translational slide – note slides and slumps are synonymous terms Rotational slump (or slide) A block slump (or slide) The illustration depicts a translational slump The illustration depicts a rotational slump Earthflows are finer grained than mudflows. From the provided list a debris flow is the coarsest deposit generated from mass wasting.
b. is the correct. Mass movements Mass movement is also known as mass wasting. It is the movement of masses of bodies of mud, bedrock, soil, and rock debris, which commonly happen along steep-sided hills and mountains because of the gravitational pull.
Gravity exerts its force on all matter, both bedrock and the products of weathering. Mass wasting, which is sometimes called mass movement or slope movement, is defined as the large movement of rock, soil and debris downward due. Fall Geog Page 1 Topic: Mass wasting events Instructions: Online instruction clearly provides challenges in delivering lecture dbpg.xn---22-6cdxiysjjhmldau9o.xn--p1ai adapt lecture slides for online viewing, additional slides and explanatory text is provided.
The additional notes below highlight key points not explicitly stated on slides already provided. This document and the PDF version of lecture slides. Mass wasting represents the downslope movement of material under the influence of gravity. The definition excludes material transported downslope by streams, winds, or glaciers. The general term landslide is used to describe all rapid forms of mass wasting. The national map of mass wasting activity shows areas with greatest potential for landslides and other mass wasting events in red and pink.
Note that mass wasting can happen even on relatively gentle slopes if the shear stress acting on the materials is greater than the materials’ shear strength. Slope Strength ; The strength of the materials on slopes can vary widely. Solid rocks tend to be strong, but rock strength varies widely, so this is not always the case. If we consider just the strength of the rocks and ignore issues. MASS WASTING LECTURE NOTES. Mass wasting - any down-slope movement due to gravity.
Two types: 1) Landslide - rapid; >5 cm/year, perhaps as fast as + mph. 2) Creep - slow, typically cm/year. Continuous movement due to wetting/drying or freeze/thaw cycles. Damage estimates are $2 billion U.S. and $ billion worldwide. Fatalities vary widely, although large numbers are possible (, Mass Wasting Notes Mass Wasting mass wasting is erosion when gravity is the direct cause Causes water is the primary cause of mass wasting events o when the ground becomes saturated the water reduces the friction between the sediment allowing it to flow loss of vegetation o leaves act like umbrellas, roots soak up water and anchor soil in place over steepened slopes o rivers or road creation.
Gros Ventre landslide, Wyoming •There are many types of slope failure. •Slope failure, also referred to as mass wasting, is the downslope movement of rock debris and soil in response to gravitational stresses. Three major types of mass wasting are classified by the type of downslope movement: falls, slides, and flows.
Mass wasting: Mass wasting: changes with earthquake. 5 Classification of mass movements Three characteristics used velocity of movement Rapid – sudden, visible movement to Slow – recognized by their effects nature of material (rock or unconsolidated) nature of movement (flow, slide, or fall) Summary of Types of Mass Movement Classification of Types of Mass Movements Tablep.
mass wasting mass movements any unit of movement of body of material, propelled, and controlled gravity, downhill movement gravity force that acts everywhere. Sign in Register; Hide.
Mass Wasting - Lecture notes Chapter University. George Washington University. Course. Introduction To Physical Geography (GEOG 2) Uploaded by. Lisa Maina Academic year. / Helpful? 0 0. Chapter 15 Mass Wasting. Factors That Control Slope Stability; Classification of Mass Wasting; Preventing, Delaying, Monitoring, and Mitigating Mass Wasting; Summary; Chapter 16 Glaciation. Glacial Periods in Earth’s History; How Glaciers Work; Glacial Erosion; Glacial Deposition; Summary; Chapter Download this GEOL 1 class note to get exam ready in less time!
Class note uploaded on. 2 Page(s). Exams are coming! Get ready with unlimited notes and study guides! Get access. Class Notes. Search Class Notes. Pricing. Log in Sign up. Home Class Notes 1, USGEOL 1 Lecture Notes - Lecture Mass Wasting, Weathered, Landslide.
0 views 2 pages. OC. ch mass wasting an introduction to landslides mass wasting: comprehensive term for any type of downslope movement of earth materials landslides: specifically, Sign in Register; Hide. CH 7 Book Notes - Mass Wasting.
Mass Wasting. University. University of Delaware. Course. Geological Hazards and Their Human Impact (GEOL ) Academic year. / Helpful? 0 0. Share. Comments. Please. 4. 4 Introduction Mass wasting, also known as slope movement or mass movement, is the geomorphic process by which soil, sand, regolith, and rock move downslope as a mass, under the force of gravity.
Process of mass wasting initiates when weathering (physical and chemical) and other processes weakens the rock material and it falls apart.
Notes za Geography Form 3. Geography Notes Form Three Pdf. Form 3 Geography Notes. Geography Notes Form 3. Geography Notes Form 3 - KLB Book 3 - KCSE Geography Revision Notes - Free Download. Geography Notes Form 3. Statistics. Compound/cumulative/divided. Bar Graph. Major Cash Crops Exported in Kenya in Tonnes. 1. Set cumulative totals for the data each year. 2. Draw vertical. Mass Movement Revision Notes Mass Movement It is the movement of material downslope under the influence of gravity.
The loose material is called regolith. Factors that affect mass movement 1. Gradient (Slope): The steeper the slope the faster the mass movement 2. Vegetation: It slows down mass movement, as the roots of plants bind the soil 3. Human activity: It can speed up the rate of mass. Mass Wasting Potential EXPLANATION LANDSLIDE INCIDENCE Low (less than % of area involved) High (greater than 15% of area involved) LANDSLIDE SUSCEPTIBILITY/INCIDENCE Moderate susceptibility/low incidence High susceptibility/low incidence High susceptibility/moderate incidence Mass Wasting The downslope movement of rock, regolith, and soil under the direct influence of gravity.
Causes of Mass Movements Mass wasting is caused by gravity. On a mass of material gravity exerts a force downward proportional to the amount of mass. Because of the effect of water on slope stability, many mass wasting events are triggered or hastened by heavy or extended rainfall. Kinds of Mass Movements Soil Creep Creep is the slow, continuous movement of soil or unconsolidated sediments. Lecture Notes - Lecture 9: Landslide, Mass Wasting, Debris Flow.
by OC School. Rutgers University. Department. Geological Sciences. Course Code. Professor. professor Feignson. Lecture. 9. This preview shows half of the first page. Sign up to view the full 3 pages of the document.
GEOLOGY: Mass Wast ing. creep. Very slow, continuous dow nslope movement of soil or. The PDF (Portable Document Format) versions of the lecture notes are optimized for printing. All page breaks should occur correctly. If your web browser has the proper plug-in installed, clicking on the PDF will bring the file into your web browser from which you can then print the notes. If the plug-ins are not installed, your web browser will either attempt to download the PDF files or offer.
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. Types of Mass Wasting. Rockfalls and rockslides.
Rockfalls occur when pieces of rock break loose from a steep rock face or cliff. These result from the rock face being undercut by rivers or wave action. Frost wedging may also eventually loosen large blocks, causing them to fall. The accumulation of rock debris at the base of a steep slope is called talus. Rockslides usually follow a zone of. Grade 11 notes on Geomorphology and Mass Wasting. Diagrams are easy to understand. Colour coded easy to follow and understand.5/5(2).
This 24 piece set's main focus is on mass wasting events - rockslide, rockfall, mudslide, and lahar.
It includes illustrations of mitigation efforts such as fences and mesh, retaining walls, and reforestation of slopes.
In addition, the set also includes a snow avalanche and 3 flood related graphic. Subjects: Earth Sciences, General Science, Products For TpT Sellers. Grades: 7 th, 8 th, 9 th. Effects Of Mass Wasting The combined effects of mass wasting and running water produce stream valleys, which are the most common and conspicuous of Earth’s landforms.
If streams alone were responsible for creating the valleys in which they flow, the valleys would be very narrow features. Most river valleys are much wider than they are deep, is a strong indication of the significance of mass. • Mass wasting • Rivers & flooding • Glaciation • Deserts • Coastlines • Earthquakes • Environmental geology • Economic geology • Mountain belts. Murck and Skinner () Formation of the planets • Dust particles drawn together by random collisions and gravity • Particles eventually form planetesimals • These coalesce by a process called planetary accretion • The.
Mass Wasting. Prevention of Mass Wasting; Introduction to Mass Wasting; Mass‐Wasting Controls; Types of Mass Wasting; Running Water. Stream Dynamics; Stream Erosion; Sediment Load; Stream Deposition ; Stream Valleys; Regional Erosion; Types of Water Flow; Glaciers and Glaciation. How Glaciers Develop; Glacier Movement; Glacial Erosion; Glacial Landforms; Glacial Deposits; Glaciers. Chp 6: Rock Notes (PDF MB) Chp Weathering, Soils, and Mass Wasting Notes (PDF MB) Chp 15 & Surface water and Groundwater Notes (PDF MB) Chapter 10 Plate Tectonics (PDF MB) Chapter 12 and 13 Earthquakes and Volcanoes (PDF MB) Astronomy History Notes (PDF 58 KB) Constellation Notes (PDF 42 KB).
Whether human-induced or natural though, mass wasting plays a significant role in the erosion landscapes all over the world and different mass wasting events have caused damage in cities as well. On Ma, for example, an earthquake measuring a magnitude of near Anchorage, Alaska caused almost mass wasting events like landslides and debris avalanches throughout.
MASS WASTING / MASS MOVEMENT: Mass movement is the movement of weathered material down a slope due to gravitational forces. 1. Soil Creep: This is a slow, gradual but more or less continuous movement of soil down the hill slopes. It is shown on the figure to the right. 2. Soil Flow (Solifluction): When the soil is completely saturated with water the individual particles are almost.
Delaying mass wasting is a worthy endeavour, of course, because during the time that the measures are still effective they can save lives and reduce damage to property and infrastructure. The other side of the coin is that we must be careful to avoid activities that could make mass wasting more likely.
One of the most common anthropogenic causes of mass wasting is road construction, and this Author: Steven Earle. Download CBSE class 11th revision notes for Chapter 6 Geomorphic Processes class 11 Notes Geography in PDF format for free.
Download revision notes for Geomorphic Processes class 11 Notes Geography and score high in exams. These are the Geomorphic Processes class 11 Notes Geography prepared by team of expert teachers. The revision notes help you revise the whole. MASS WASTING & SOIL EROSION Reported by: Winona Delos Reyes & Mateo Sepacio 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, but frequently with characteristics of a flow as in debris flows and.
In Mass Wasting, the gravitational force of the earth acts directly on the loose material and the unstable slopes result the slide of the rocks and rock debris. This is k. GK, General Studies, Optional notes for UPSC, IAS, Banking, Civil Services.
Information recall - access the knowledge you've gained regarding factors that can cause mass wasting Additional Learning.
Once you finish the quiz, head over to the related lesson titled Mass. Mass communication can also be defined as ‘a process whereby mass-produced messages are transmitted to large, anonymous and heterogeneous masses of receivers’.By ‘mass-produced’ we mean putting the content or message of mass communication in a form suitable to be distributed to large masses of people. and mass wasting (landslides) should be addressed during the prescription, implementation and monitoring phases for all road rehabilitation projects.
Working collaboratively with other agencies such as the Forest Enhancement Society of British Columbia (FESBC), the Habitat Conservation Trust Foundation (HCTF), or Forests for Tomorrow (FFT) can create efficiencies and other co-benefits.