61. Environmental Geomorphology Mass Wasting Lecture Geol 33 Environmental geomorphology. J Bret Bennington. Mass Wasting. Weathering rock, sediment, and soil at the surface of the Earth sometimes become http://people.hofstra.edu/J_B_Bennington/33notes/mass_wasting.html

Geol 33 Environmental Geomorphology J Bret Bennington Mass Wasting Weathering rock, sediment, and soil at the surface of the Earth sometimes become unstable and move or collapse with devestating effect. Slower, more gradual movement also occurs that can damage surface structures such as buildings and roads. Mass Wasting : refers to the movement of Earth materials downslope due to the pull of gravity. Mass wasting includes very slow, often imperceptable movement of soil and rock called creep , and the sudden, catastophic movement of landslides Unfortunately, because of the pervasive spread of human habitation, many structures are built in unstable areas. According to the USGS, more people in the United States died from landslides during the last three months of 1985 than were killed during the last 20 years by all other geohazards (including earthquakes and volcanic eruptions). In general, landslides average 25 lost lives and 1.5 billion dollars in damage per year. This is almost triple the average rate for tornados, floods, hurricanes, and earthquakes combined! Causes : Mass wasting is caused by gravity . On a mass of material gravity exerts a force downward proportional to the amount of mass. If the material is resting on a slope, the force has two distinct components:

62. Geomorphology This area is under development. For information about the upcoming On the Cutting Edge workshop on Teaching geomorphology in the 21st Century, http://serc.carleton.edu/NAGTWorkshops/geomorph/index.html

@import "/scripts/dojo-release-1.1.0/dojo/resources/dojo.css" On the Cutting Edge - Professional Development for Geoscience Faculty Teaching Geomorphology in the 21st Century Topical Resources Cutting Edge Teaching Geomorphology in the 21st Century Related Links Teaching Petrology Teaching Structural Geology Teaching Hydrogeology Teaching Sedimentary Geology ... Teaching Geophysics This area is under development. For information about the upcoming On the Cutting Edge workshop on Teaching Geomorphology in the 21st Century, see the link below. To view sites about teaching other important courses in the geoscience curriculum, see the box of Related Links at the right. 2008 Workshop Follow this link for more information on the July 2008 workshop , being held at Colorado State University in Fort Collins, CO. Cutting Edge Affective Domain Biocomplexity Career Development ... Geochemistry ...click to see 11 more... Geology and Human Health Geomorphology Workshop 08 Geophysics ... Web-Based Resources Last Modified: November 09, 2007 Printing Shortcut: http://serc.carleton.edu/21001

63. Wiley::Large Rivers: Geomorphology And Management Large Rivers geomorphology and Management explores an important topic in geomorphology and sedimentology the form and function of major rivers. http://www.wiley.com/WileyCDA/WileyTitle/productCd-0470849878.html

United States Change Location Home Subjects About Wiley ... Geomorphology Large Rivers: Geomorphology and Management Related Subjects General Geography Physical Geography Planning in Geography Regional Geography ... Urban Geography Related Titles More By This Author Environment and the Developing World: Principles, Policies and Management Varieties of Fluvial Form Geomorphology by Derek C. Ford, Paul Williams The Periglacial Environment, 3rd Edition by Hugh French Dynamic Earth Environments: Remote Sensing Observations from Shuttle-Mir Missions by Kamlesh P. Lulla (Editor), Lev V. Dessinov (Editor) Landslide Hazard and Risk by Thomas Glade (Editor), Malcolm G. Anderson (Editor), Michael J. Crozier (Editor) Dryland Rivers: Hydrology and Geomorphology of Semi-arid Channels by L. J. Bull (Editor), M. J. Kirkby (Editor) Click to Close Larger Image Large Rivers: Geomorphology and Management Avijit Gupta (Editor) ISBN: 978-0-470-84987-3 Hardcover 712 pages March 2008 US $275.00 Add to Cart This price is valid for United States. Change location to view local pricing and availability. Other Available Formats: E-Book Read Now Online An online version of this product is available through our subscription-based content service.

64. Welcome To The NMSU Geomorphology Web! What is geomorphology? About the Authors Geomorphic Rates NMSU Geography Dept Desert Processes and Landscapes Link to the WWW Student Projects. http://www.nmsu.edu/~geoweb/Geomorph/welcome.htm

The NMSU Geography Department Presents the Introduction to Southern New Mexico Points of Interest What is Geomorphology? About the Authors ... Student Projects

65. Geomorphology : Geography Compass Each Compass journal publishes peerreviewed survey articles from across the entire discipline. Experienced researchers, teaching faculty, and advanced http://www.blackwell-compass.com/subject/geography/section_home?section=geco-geo

66. PSLC--Geomorphic Mapping An effective way to read the landscape is to make a geomorphic map that shows the distribution of different surface units. The map guides and documents http://pugetsoundlidar.ess.washington.edu/surfmap/

Puget Sound Lidar Consortium Geomorphic (surface) mapping The landscape, carefully observed, tells the story of its own making. Glacially scoured upland, diffusionally softened ridgecrest, landslide, alluvial river bottomcollectively they record a sequence of processes and events that led to the present landforms. The hills are not unchanging! An effective way to read the landscape is to make a geomorphic map that shows the distribution of different surface units. The map guides and documents interpretations of the age and genesis of these units. Geomorphic maps are not geologic maps, as they do not show the distribution of rocks and sedimentary deposits. Where surface units correspond to underlying rocks or sediments, the geomorphic map is a useful proxy for a geologic map. The geomorphic map can also show parts of Earth history that the geologic map is blind to: geologic maps are limited by the depositional record, whereas geomorphic maps can demonstrate history that leaves an erosional record only. Traditionally, geomorphologists (geologists who study the shape of the land) examined the landscape with their own eyes in the field and indirectly via air photos and topographic maps. This has been an imprecise process because these tools, especially in wooded areas, have not fully shown the shape of the land. Transferring interpretations from a field view or a photo to a base map is tedious and often imprecise. Lidar topographyaccurate, highly detailed, fully geo-referenced, and digitalwill revolutionize interpretation of the landscape.

67. International Association Of Geomorphologists - Planetary These data allow the identification of a range of active and relict geomorphic processes that include impact cratering, volcanism, aeolian, fluvial, http://www.psi.edu/pgwg/

68. Topography, Soil Horizons, And Erosion/deposition This document illustrates the methods and tools integrated with GRASS GIS which support spatial analysis of relationship between soil properties, http://skagit.meas.ncsu.edu/~helena/gmslab/viz/geomorph.html

TOPOGRAPHY, SOIL HORIZONS, AND EROSION/DEPOSITION This document illustrates the methods and tools integrated with GRASS GIS which support spatial analysis of relationship between soil properties, topography and erosion processes in 3D space and time. The study area is located at experimental farm near Munchen, Germany. Detailed survey was performed in this area resulting in approx. 2000 points with elevation data and 400 points with soil core data. Point data were transformed to 2D raster maps using using regularized spline with tension implemented in GRASS as s.surf.tps . The following images and movies show the spatial distribution of data and selected raster maps representing terrain and soil horizons, visualized in 3D space as combination of multiple surfaces, color, cutting panes, transparency and points. Elevation surface and sampling points Location of soil cores Soil horizons represented by multiple surfaces Slicing through the horizons (movie - 125Kb) (movie - 125Kb) Flow related topographic parameters needed for hillslope erosion modeling are computed by flow tracing program r.flow

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