Nobody downloaded yet

The Eruption of Toba - Essay Example

Comments (0) Cite this document
Summary
[Instructor Name] The Eruption Of Toba Lake Toba is a super volcanic lake. The length of the lake is 100 kilometers with a width that is 30 kilometers, while its depth is 505 meters (1,666 feet). The surface elevation of the island of Sumatra is around 900 meters which equates to 2,953 feet…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER91.8% of users find it useful
The Eruption of Toba
Read TextPreview

Extract of sample
"The Eruption of Toba"

Download file to see previous pages Some geologists believe that the volcanic eruption also resulted in the extinction of the human race that existed at that time. However, there is a belief that this theory does not hold true because many of the species of the animals that are said to be sensitive to the change in temperature did exist at that time. The other belief is that it caused a change in the genetic setup of the human beings that lived in the area at that time. This volcanic eruption is considered to be the largest known eruption in the last 25 million years and caused a major change in climate at that time. The volcanic winter which occurred as a result of the eruption resulted in decrease in temperature to around 3 to 5 °C (5 to 9 °F), and up to 15 °C (27 °F) in higher latitudes (Causey 48-59). TOBA CATASTROPHE THEORY According to this theory the winter caused because of this super volcanic eruption lasted for around 6-10 years and the cooling of the lava was a long process that stretched around 1000 years. It was suggested by Ann Gibbons that the super volcanic eruption that took place resulted in a bottleneck in the human race. A few other scientists suggested the same but then again many other scientists subsequently failed to identify any link or develop enough evidence to support the theory. According to a theory there were not just one but a series of three eruptions that spanned over the period of 1 million years. The crater that was formed because of the super volcanic eruption was 100 ? 30 km2 area wide. The crater is known as the Caldera Complex and the volume of the eruption was estimated to be around 2,000 km3 and 3,000 km3. The mass that was collected after this eruption was estimated to be larger than the erupted mass that had been ever collected in the past 100 years of volcanic eruption history. The ash layer that was deposited from the Toba eruption that took is said to be around 15cm thick and it was spread over the whole of South Asia. A layer of ash was also deposited over the Indian Ocean, and the Arabian and South China Sea. Even the deep sea rocks that were later retrieved from the South of China sea are said to have the after effects of the volcanic eruption and this has proven that the estimation that was done about the spread of the volcanic mass was an underestimation. And therefore the mass was estimated to have even more far reaching effects than had been calculated (Gunn 40). Some of the scientists believe that the eruption happened at the time when the last of the glacial period was setting in. They believe that the super volcanic eruption that occurred was not responsible for the cooling effect on the climate, but it acted as a trigger for the glacial period. The glacial period was setting in was at a very low speed, but when the super eruption at Toba occurred the whole process was quickened and the glacial period occurred. There are many conflicting opinion about this theory but the general assumption is that the super eruption at Toba caused a lot of dramatic changes in the weather and the temperatures dropped dramatically thereafter. There were also a lot of ash deposits found in the atmosphere as well as in the ocean. The ice samples that were found from the Greenland also showed abnormality in the temperatures and the deposition that had ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“The Eruption of Toba Essay Example | Topics and Well Written Essays - 2000 words”, n.d.)
Retrieved from https://studentshare.org/geography/1467498-the-eruption-of-toba
(The Eruption of Toba Essay Example | Topics and Well Written Essays - 2000 Words)
https://studentshare.org/geography/1467498-the-eruption-of-toba.
“The Eruption of Toba Essay Example | Topics and Well Written Essays - 2000 Words”, n.d. https://studentshare.org/geography/1467498-the-eruption-of-toba.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Eyjafjallajkull - Volcanic Eruption
...? Eyjafjallajokull Volcano Eyjafjallajokull Volcano Source: http www.boston.com/bigpicture 04/more_from_eyjafjallajokull.html The snow covered Eyjafjallajokull Volcano in Iceland was dormant for 190 years but it suddenly started erupting on 20th March 2010. This volcano is located in southern Iceland and it started erupting when an approximately 2000 feet long fissure cracked open in the Fimmvorduhals pass situated on the western slope of the volcanic mountain. But before the volcano erupted, there were enough signs that an eruption was imminent as the region experienced frequent earthquakes of moderate to high intensity which gradually rose towards the surface of the...
1 Pages(250 words)Research Paper
Discuss the impact of volcano-induced climate change in Earth's history
...that the effect of volcanoes on climate change could have been previously underestimated by 7 to 8 orders of magnitude (Boulon, Sellegri, Hervo, & Laj, 2011). This leads us to believe that there could have been a significant effect of volcano-induced climate change that significantly impacted the earth history. Impact on earth history The volcanic activity as we see today is only a small proportion of the level of volcanic activity of the historical past when large scale volcanic eruptions were much more common, long lasting, and frequent. Thus, the volcano induced climate change could possibly even have led to major changes in earth’s history. For example, approximately 70,000 years ago, a large scale volcanic...
4 Pages(1000 words)Term Paper
Volcanic Eruptions versus Human Civilizations 2mya
...of the ancient civilizations shall also be another element that this paper will address as it endeavors to unearth how different civilizations functioned. Case study of such civilizations shall come from China, Asia, Africa and India. Additionally, this paper will also analyze the evolution of hominid and their association with the selected civilizations that this paper shall analyze, evaluate and discuss (Sparks et al., 2005, p. 41). Introduction There are volcanic landscapes all over the world that one may observe that at one time in history has tremendous effects on human culture and civilization. Perhaps the most prominent eruption in the recent past was the Toba eruption (Machida...
11 Pages(2750 words)Essay
Use of forced eruption to enhance the Pontic site in the anterior maxilla
...?First Lecture’s Homework Use of forced eruption to enhance the Pontic site in the anterior maxilla Over time, periodontics has metamormphisized in order to provide functional as well as aesthetic results for patients. For any periodontal therapy, the main objective is the restoration of the normal health of the periodontium. In many cases, periodontal therapy starts with an extraction of teeth which demands an implant. Tooth loss is often results in migration of other adjacent teeth and deficit of hard and soft tissues. Implant therapy has over the years become an alternative to replacing missing teeth following an extraction since extraction results in migration of other adjacent teeth as well as defects in both hard...
6 Pages(1500 words)Essay
Write a short article about a major volcanic eruption
...Life in 1600 BC was wonderful on the island of Crete. By all accounts, the Minoans that inhabited the island enjoyed a high standard of living. Many of the problems that plagued civilizations on the mainland of Europe and Southwest Asia did not affect the Minoans. Their boarders were secure because they were the world’s most powerful navy to protect their island. Their soil was fertile and their climate mild, so food surpluses were easy to obtain. Political stability added to the strength of the Minoans. But with the eruption of a volcano on the island of Thera, all of this changed in an instant. Volcanoes are powerful forces of nature. According to Ritter et al., volcanism is simply the manifestation of processes that occur... ...
3 Pages(750 words)Essay
Assignment on Geology
...is, the more likely it is that it will erupt again, and that is the case for all three volcanoes. The Soufriere is the most active of the three and therefore more likely to erupt again because its current pattern of activity includes periods of dome growth followed by brief episodes of dome collapse, resulting in lava flows, ash venting, and eruptions (Young et al. 349). 3. What is a supervolcano? A supervolcano is a volcano capable of producing an eruption thousands of times larger than most volcanic eruptions in history, with ejecta greater than 240 cubic miles. 4. What would happen if a supervolcano eruption occurred? If a...
2 Pages(500 words)Essay
Is there a link between volcanic eruption and climate change and what the relationship between the two may be
...Volcanic eruption and climate change 19-12 Is there a link between volcanic eruption and climate change and what the relationship between the two may be? Elisabeth Ann Parfitt, a renowned teacher of the studies on Earth’s geology enlightens us that the recent up gradation in technology has improved our understanding in the studies of after affects of volcanic eruptions. In the past, the affects were mentioned as inconsiderable as the satellite imaging of short term affects was not possible. However recently we got to know that the aerosols from sulfuric acid and sulfur oxide gas remained in the air and even travelled 22 miles in the air, as they were detected this far away in the atmosphere. Apart from this volcanic eruptions also... ...
2 Pages(500 words)Essay
Crossing Cultures; The Eruption of Rock'n Roll
... Due Shake, Rattle, and Roll-How Rock and Roll Shook an Era Today the words “Rock ‘n’ Roll” are a common place term. When we hear it we think good music with guitars and strong beats. However 60 years ago the term inspired a very different reaction, at least from part of the population. As much loved as the genre is today, it was not always so well received. But, in order to understand why rock ‘n’ roll got such a “rocky” start one must understand its origins. The 1950s was a very different time. They country had just ended a war and the “Baby Boomers” were reproducing and living up to their generational name. Husbands went to work. Woman stayed home with the children. Children went to school and hoped to either be the quarterback...
5 Pages(1250 words)Essay
Geology Volcanoes&Earthquake Assignment9
...besides Yellowstone, some of which went off years ago and could erupt again, e.g. Toba, Long Valley Caldera, Pinatubo, etc. 2. The caldera was identified by a geologist, Bob Christiansen, who delineated through walking over the area and using a hand lens and hammer to look for rock formation and rock distribution. 3. According to USGC, the movie does not depict the occurrence of a volcanic eruption clearly. 4. Yellowstone is monitored for volcanic activity by the Yellowstone Volcano Observatory. 5. Most geologists believe that they can predict volcanic catastrophes weeks, months, and perhaps years before they occur. The Movie 1. The movie is great; it is informative and captivating,...
3 Pages(750 words)Assignment
An analysis of the figures of speach of the fictional story And of Clay are we Created from Isabel Allende and the real life event in 1985, the eruption of Nevado del Ruiz volcano in Colombia
.... Historically, “various eruptions caused the formation of large mudflows in the valleys beneath the volcano” (“Volcano erupts in Colombia” web). The population of human beings is growing, so when the Nevado del Ruiz was not erupting for a long time, they started to equip land in their own purposes. Some months passed and volcano “woke up”. A lot of scientific and geologic groups from different places of the world were invited to study the situation. They strongly recommended evacuating the area, considering the eruption was possible, but there words, unfortunately, were ignored. And as a result the following November gave an unpleasant surprise with...
4 Pages(1000 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic The Eruption of Toba for FREE!
Contact Us