The Cause Of Glacial Movement In Greenland

611 words - 2 pages ✓ Expert Reviewed

Recently, concern over the increased movement speed of glaciers in Greenland has risen. Some geologists have are citing the cause as regional warming. Before attempting to either prove or discredit this, the causes of glacial movement must first be established. Glaciers tend to flow as a solid mass rather than a liquid. Gravitational pull causes the glaciers to move at an average speed of tens of meters per year. One of the most basic ways that glaciers move is by moving down the slope on which it rests. However, in the case of continental glaciers, which form on flat land surfaces such as in Greenland, the glacier will flatten out as the glacier flows outwards from its thickest point.
Knowing the general way that glaciers move is just the start; the mechanisms of movement must be studied further. Glaciers located in warmer climates often travel by basal sliding. Both the heat and the pressure of the glacier above it will cause the bottom layer of the glacier to undergo a small amount of melting. The water produced reduces the friction between bedrock and the glacier, allowing it to easily glide across the surface. However, polar glaciers located in colder temperatures do not undergo basal sliding, but instead move by means of plastic deformation. Just enough water forms along grain boundaries which allows the water molecules to change. This will cause the formation to recrystallize, stretch or rotate into different shapes. The first mechanism explained tends to only affect continental glaciers and temperate glaciers, while the second mechanism affects those same two as well as polar glaciers. Continental and temperate glaciers exist in warmer regions that allow for melting, while polar glaciers do not.
With these mechanisms now explained, the next question is what could be the...

Find Another Essay On The Cause of Glacial Movement in Greenland

The Cause of Voter Apathy in Canada

1343 words - 5 pages What causes voter apathy? Why, in the most recent federal and provincial elections, did roughly 40% of eligible voters stay home? Perhaps candidate A, running for party A led by leader A, is not perceived as being significantly different from, or better than, candidate B, running for party B led by leader B. This lack of perceived difference between candidate-party-leader A and candidate-party-leader B, is not the only problem in an election...

The Benefits of Movement in Schools

3251 words - 13 pages when more opportunities for movement are included in their regular routine at school. Issues: The researchers have observed several off task students, disruptive behaviors, decreased engagement, and diminished academic results in the classroom. The purpose of this study is to observe and report on how movement affects students’ academic performance in regards to attention, learning, emotions, and behavior. To better assist with why the...

Analysis of the Mens Movement in Canada

2750 words - 11 pages Analysis of the Mens Movement in Canada With the emergence of the Women's Movement, a deep cleavage was created in gender relations, seemingly pitting women against men in the struggle for equality and status. An effect of this separation in spheres, was a collective of men feeling as if they were being misrepresented, or left behind during a revolutionary period of changing gender relations. A product of this was the conception...

The Cause of Phobias

1123 words - 4 pages The Cause of Phobias Thesis: We are not born with phobias – a phobia is learnt because it has become associated with an object or an experience that is unpleasant. According to the behaviourist, a phobia has to be learnt. This can happen in one of two ways: classical or operant conditioning. Classical conditioning is where an object/experience becomes associated with something unpleasant or causes pain/fear...

The Cause of WWII

2399 words - 10 pages the treaty was done in her own defense. Many historians believe the building of military, allies and imperialism only contributed to the cause of World War II; however the Treaty of Versailles contributed the most to the issue. This treaty only fulfilled the “Big Three,” or Allied Powers. The Allied powers knew that they had to make Germany weak, yet strong enough to stop the spread of communism. The Treaty of Versailles was signed by various...

The Cause of the Economic Boom in the 1920's

1184 words - 5 pages The Cause of the Economic Boom in the 1920's By the end of the First World War America was regarded as the most powerful and richest country in the world. In the 1920´s the United States economy was booming. This was a period of prosperity, when the country's economy was doing well and some of the people were sharing in it. A long-term cause of the American boom in the 1920´s was America's natural advantage and regional...

The Cause of Teen Alcoholism in the World Today.

1334 words - 5 pages cause makes a significant impact in a teen's decision to drink.One of the first causes of teen drinking is the idea of feeling better, whether it be in hope of escaping large amounts of stress or to feel better by appearing older and more sophisticated. Most teens agree that when drinking, you find yourself more daring, and you feel more mature due to the basic fact you are drinking (Coffey 11). Drinking as a way of escape can originate...

The Cause of Hatred and Distrust in the Middle East

2256 words - 9 pages The Cause of Hatred and Distrust in the Middle East The war in Iraq is further poisoning the already noxious political atmosphere between Arabs and Americans. It has intensified and increased dangerous feelings of humiliation and outrage among the Arab public, while paranoid rhetoric about Western attacks against Islam elsewhere is spreading from the religious fringe to the mainstream. It is simplistic and self- serving...

The Cause of Obesity in the United States

1311 words - 5 pages Obesity has increased rapidly throughout the years, especially in the United States. As of today, according to the Center for Disease Control and Prevention, more than one-third of adults in the U.S are considered to be obese. We all know that obesity is becoming a serious issue in the lives Americans. The effects of obesity can lead to heart disease, diabetes, and in serious cases, death. So the question we can all ask is, “What is the cause...

human activities cause the loss of biodiversity in Australia

861 words - 3 pages cause of the change of environment so the conclusion may be just base on the theory.So it is hard to say that climate change is the cause of biodiversity loss in Australia. 3. Human activities 3.1 Effects Not only the nature but also humans create a lot of negative impact on the biodiversity in Australia. Two most improtant humans’ activitives cause this loss are hunting and clearing land. According to Healey (2001,pp.6-15) , the most serious...

The Cause of Financial Distress in Airlines Industry

1448 words - 6 pages The Cause of Financial Distress in Airlines Industry Introduction According to International Air Transport Association (IATA), global airline industry has a history of 100 years (2014). Today, there were more than 3 billion passengers and 50 million tonnes of cargo reach their destination through the wonder of flight every year, supporting over 57 million jobs and $2.2 trillion in economic activity (IATA, 2014). The airline industry plays a...

Similar Essays

Contributing Factors of the Next Glacial Period

1140 words - 5 pages . Revkin, the author of “Global Warming Is Eroding Glacial Ice”, believes that the main cause of global warming is largely due to human activity. Revkin’s claims water glaciers are disappearing which is making an overall negative impact on global warming. He believes that melting trends are showing a negative effect on the environment and that people’s ignorance to hydroelectric power is leading to future water shortages, which in the longer run...

Glacial Landforms in the Peterborough Ontario Region

6473 words - 26 pages Glacial Landforms in the Peterborough Ontario Region Page Number: 1. Introduction 3 2. Section 1: Geology 3 3. Section 2: Geomorphology 8 4. Section 3: Hydrology 13 5. Section 4: Vegetation 15 6. Section 5: Soil 18 7. Section 6: Climate 20 8. Conclusion 22 9. Appendix 24 10. References 25 11. Maps Introduction This is a report based on three days of...

Vikings in Iceland and Greenland - Exploring the Development of Viking Civilization

1677 words - 7 pages Iceland and Greenland are located at high latitudes in the Northern Hemisphere and they face each other across the sea. Though Iceland is considered one of the five Nordic countries while Greenland belongs to North America, both of them were once colonies of Vikings and played important roles in Viking age. Viking civilization experienced from prosperity to decline during 8CE to 14CE on these two islands. It is very possible to find out the...

Cause of the crash in stock market

2367 words - 9 pages the Crash in 1987So, what were the causes of the stock market crash of 1987? Many stock market analysts believe that the crash was set off by a number of events. Here I am providing five reasons that could be factors for the crash in 1987, including psychological cause, the poor choices of portfolio insurance professionals, program trading, derivative securities, and trade and budget deficits2.1 Psychological cause1) Why the...