PPT-Glacier Travel II Marek

Olszewski Aaron Yahr 1 November 2010 Reference Outline Gear Prussiks Anchors Belay Systems Ascending the rope What to bring Ropes Dry treated ropes absorb less water so are lighter and handle better . In Glacier National Park (GNP), MT some effects of global climate change are strikingly clear. Glacier recession is underway, and many glaciers have already disappeared. The retreat of these small deGeer. Moraines . Erica . Doody. What is a . deGeer. moraine?. Small moraine ridges that occur in clusters parallel to each other. Usually found in coastal marine settings. First identified by Gerard . Glacial Erosion. As glaciers travel over land, glacial ice can erode the underlying bedrock.. This erosion can happen by:. Plucking. A. brasion. Plucking. This occurs when melt water at the base of the glacier freezes in cracks and fractures the underlying bedrock.. What are the processes of glacial erosion?. They erode by two main processes. As a glacier moves down a valley, it creates pressure on the land which creates heat. This melts part of the glacier. This water runs into small cracks, it the refreezes as it gets colder (freeze-thaw). Finish South Asia. Nepal: Everest Region. Glacier Lake Outburst Floods. 1999 Slides. Summary of Observed Glacier Changes. Sketch Maps Due on Wednesday!. For . Next Class: Read Chapter 13 (pp. 588-598). Understand . the changes of emissions and fuel types in source . regions by . quantifying regional contributions to carbonaceous aerosols recorded in a 50-year Tibetan ice core, which had seasonal dependence and long-term trends. Objective: . To determine how slope and basal conditions affect glacier speed. .. Prediction:. . Which glacier do you think will move the fastest?. Steep slope, smooth surface. Steep slope, sandy surface. Deposition:. AIM:. Erosional and Depositional systems. Do Now: In your notebooks…. 1) Define the two terms below in your own words.. 2) Explain how the two terms work together.. The movement/transport of material from one place to another. Erosive forces . Glacier. persistent . body of dense ice that is constantly moving under its own . weight.. It . forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many . Ms. Martel. What Is A Glacier?. About 75% of Earth’s fresh water is frozen in glaciers.. A glacier is a large mass of compacted snow and ice that moves under the force of gravity.. Glaciers help to carve Earth’s landscapes as it erodes geological features in one place and then re-deposits the material elsewhere. . l. a. c. i. e. r?. KEY IDEAS & QUESTIONS. To identify and describe landforms created by glacial . deposition.. To explain . how landforms . of glacial . deposition are formed – moraine, drumlins and . Adventures. By: Ashley Navarro-Monroy. amn5536. Geological. ^. Introduction. I live in a suburb outside of Toronto, Ontario and here we some wonderful . Provincial . and . Conservation . parks located . Chris Miller photo. USGS. 2008. Unknown photographer. Courtesy of NPS Historic . Photograph Collection. Harpers Ferry Center. 1920. The 1920 photo shows National Park Service Director, Steven Mather, on Piatt Path near present day. T. Frank. 1. , H..  Å. kesson. 2,3. , B. de Fleurian. 4,5. , K.H. Nisancioglu. 4,5. 1. Department of Physical Geography, Stockholm University, Sweden. 2. Department of Geological Sciences, Stockholm University, Sweden.