LO2 a) Erosion Moving masses of ice (glaciers) cause erosion‚ and as a result change landscapes dramatically. There are 3 processes that cause direct glacial erosion: o Abrasion o Crushing o Plucking Meltwater erosion is an indirect process of erosion. Abrasion Rock fragments at the base of the glacier grind against the bedrock wearing down it’s surface. As a result‚ the surface becomes smooth. These smoothed bedrock surfaces are called striations. Fine silt particles are formed‚ called rock flour
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Chapter 15 Test: Glaciers and Erosion Matching: 1. ________ pyramid-like peak made of arêtes A. snowfield 2. ________the unsorted material left beneath B. snowline the glacier when the ice melts 3. ________depressions where most outwash plains are pitted C. cirque 4. ________theory that most scientists now accept D. kettles 5. ________large cracks E. horn 6. ________masses of ice that occupy millions of square kilometers F. Milanokovitch Theory 7. ________an almost motionless
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change. However‚ glaciers all around the world are melting. Due to global warming‚ polar ecosystems are being forced to change. Not only does the hydrology of melting glaciers lead to a warmer environment‚ but a warmer environment in turn affects polar ecosystems. The environment
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While searching the internet for a satisfactory place to take a vacation‚ I stumbled upon the Glacier Bay national park in Alaska. The park looked quite interesting to me‚ so I decided I would visit there for a few days the next week. Trips to Alaska are not cheap‚ let me tell you; $500 each way! When I landed at the airport‚ the first thing I wanted to do was find a way to get to the park. Luckily‚ one of my friends lives in Alaska‚ and she was able to drive me to Gustavas‚ about 10 miles away from
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The Siachen Glacier‚ located in the eastern Karakoram range in the Himalaya Mountains‚ has been the site of intermittent conflict between India and Pakistan for several decades. In 1949‚ a ceasefire line was negotiated between the two countries in an effort to resolve the competing territorial claims of the the violent Kashmir conflict.[3] The agreement‚ however‚ did not clearly delineate Siachen as either Indian or Pakistani‚ and competing claims to the barren area began to escalate.[3] Both sides
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Glaciers are present year-round‚ but vary in their rate of melting. For a pack of ice to qualify as a glacier‚ it exist continually rather than just seasonally. For reasons that are not completely clear‚ the planet has experienced several major Ice Ages in its history‚ when glaciers extended as far south as New York‚ USA and Paris‚ France. So many glaciers piled up that the sea level was lowered by 100 m (328 ft)‚ opening up large areas of land such as the North Sea‚ the Bering strait‚ and connecting
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Over the winter break‚ me and my classmate decided to go to one of the national park‚ that place is Glacier Bay National Park and Preserve in Alaska. We also invited our school teachers. We chose to go with ferry but I am the only one who chose to go with my own car because I always arrive late so I thought it was a good choice for me. But one of my teacher worried that I might not know the way to the park so she follow me. I also take my pet bird Kiwi and my precious teddy bear with me. It was a
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Erik M ENG 102 – 32816 8 Oct. 2008 Climate Change’s Effects on Glacial Melting On the sheltered slopes of the highest peaks in Glacier National Park‚ in Montana‚ the beautiful and majestic landmasses known as glaciers are quickly melting away. These giant landmasses are found all over the world‚ on both North and South Poles‚ on all seven continents‚ and even on the high peaks in the tropical regions near the equator. Over the past few decades‚ the global climate has been subject to vast changes
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passage carefully and answer the questions that follow. Glaciers Besides the earth’s oceans‚ glacier ice is the largest source of water on earth. A glacier is a massive stream or sheet of ice that moves underneath itself under the influence of gravity. Some glaciers travel down mountains or valleys‚ while others spread across a large expanse of land. Heavily glaciated regions such as Greenland and Antarctica are called continental glaciers. These two ice sheets encompass more than 95 percent of
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GSCI Final Exam Study Guide Glaciers q 1-24 34% Text book p 570-587 Ice as a Rock - Mass of crystalline grains of the mineral ice - Like sedimentary: formed from material in deposited layers‚ can accumulate a great Thickness - Igneous: formed by the freezing of a fluid - Metamorphic: transformed by recrystallization under pressure - Flows readily downhill like a viscous fluid because of structural weakness - Glaciers: large masses of ice on land that show evidence of
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