Continental drift is the theory that Earth’s continents have moved around the Earth’s surface throughout geologic time to get to where they are at today. The theory of continental drift has been a controversy, but findings have made the theory more supportive. This theory at the time changed the way on how we viewed the origin of the continents. It was a big discovery but many were reluctant to accept the theory. The man that came up with the theory of Continental Drift was Alfred Wegener.
Alfred Wegener was a German geographer and meteorologist who also relied upon other researcher’s hypothesis such as A. Snider and Eduard Suess that helped develop Wegener’s theory of continental drift (Levin, p. 178). Alfred Wegener proposed the idea
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The breakup of Pangea (Levin, p.179).
Without a doubt, there was going to be those who would oppose his hypothesis without reasonable evidence. "If we are to believe in Wegener's hypothesis we must forget everything which has been learned in the past 70 years and start all over again" – Thomas Chamberlain (Sant). This is an important quote because Wegener’s evidence did change the history of how the Earth’s continents formed. As any other theory as soon as you have some evidence to support it, it becomes valid to a certain degree.
To help prove his theory, he also needed to find evidence that will show that these continents did once broke away for this supercontinent that was Pangea. In that case, Wegener discovered several pieces of evidence that helped him try to prove his theory of continental drift. Wegener documented his evidence in his book called “The Origin of Continents and Oceans,” that he published in 1915 (Wicander, p.
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Fit of continents about 200 million years ago (Levin, p.179).
With this in mind, if you did try putting them together, you probably might have put Africa and South America something close to the figure. It definitely looks like South America and Africa continents does seem to be a puzzle piece together. For the most part, this was Wegener’s simplest clue but his evidence gets more complex.
Another piece of evidence for his continental drift theory was fossil evidence. In this case, the fossils that have helped with this theory are the Glossopteris, Mosasaurs, Cynognatus, and Lystrosaurus fossils. The Glossopteris flora, which is a type of plant that been discovered on all the continents that were once Gondwana. These continents were Africa, South America, India, Australian, and Antarctica (Wincander, p. 42). Furthermore, the Glossopteris had to be from the same origin because the continents now all have different climates, and the seeds pertaining to the Glossopteris could not have flown far enough due to their heavy weight (Levin, p. 181). As you can see in figure 3 below, the most reasonable explanation for this. (see figure 3,
In 1596- Abraham Ortelius took note that the coastlines of the continents seemed to be too fitting together. He initiated a theory that stated that the continents were probably joined at one point in time and were torn apart between Europe and Africa. In the year of 1912, Alfred Wegener stated that the continents were once joined in a supercontinent called Pangea.
2. The theory of “Pangaea” exists suggesting that the continents were once nestled together into one mega-continent. The continents then spread out as drifting islands.
Who proposed that all of the present continents were once joined together in a single supercontinent called Pangaea?
Because of Pangia humans ended upon 2 continents, Pangia was 1 big super continent. Why they went here is because their food was on those two continents. The original humans food was on Africa and Asia while tetonic plates were moving faster.
About 225 million years ago, according to the theory of “Pangaea,” the world was once a single supercontinent that contained all the dry land. Approximately 10 million years ago, North America was shaped by the majestic Canadian Shield. About 2 million years ago, in North America, the grand glaciers laid the land of Canada and the United States, southbound as far as from Pennsylvania all the way to the Pacific Northwest. Recently, about 135 million to 25 million years ago, four massive ranges—the Rockies, the Sierra Nevada, the Cascades, and the Coast Ranges, arose in western North America. About 35000 years ago, the ancestors of the Native Americans, the nomadic Asian hunters, first
Some fossils discovered on one continent could also be found on another. Since it was hard to imagine a lizard or a reptile crossing the Atlantic, it was suggested that land bridges connected the continents, until Alfred Wegener came up with a better idea. He suggested that all of the continents we have today once formed an enormous supercontinent called Pangea. Just like Pangea redistributing species through what seemed like geographical barriers, global trade and travel also have introduced species where they hadn't been before. Introduced species (either a plant or an animal) can become
About 200 million years ago there was one big continent called Pangaea. They believed that, this landmass began to separate. They believed that the Atlantic Ocean formed, dividing Africa and Eurasia from the Americas. Over the next several million years plants and animals changed and made to separate biological worlds. It wasn’t until Christopher Columbus and his crew sailed to the Americas in October 1492, they started interacting with each other.
Between 280 million and 225 million years ago, the earth’s previously separated land areas became welded into a landmass called Pangaea. About 120 million years ago, due to the continental drift, this landmass began to separate. It split the old world and the new world apart, which dividing North and South America from Eurasia and Africa. The separation lasted for million years that it fostered divergent evolution. The new world and the old world’s biological evolution followed individual paths, becoming two separate biological worlds. However, after 1492, human voyagers reversed this tendency. In October 1492, Christopher Columbus and his crew landed in Bahamas. After Columbus arrived in
Millions of years ago according to scientist the whole world was one large mass called Pangea. When this mass began to split, it divided the Americas from the Eastern World along with the people on it. This resulted in tens of thousands years apart from one another which led to different developments on each continent. After all these years though a man named Columbus’s discovers the Americas in 1492. As soon as he took
The Presidential election of 2000 was a legitimate election. Throughout the entire ordeal of the recount in Florida, Presidential nominee, Al Gore, never took the lead from George Bush. There were four counties in Florida that the Democrats were trying to get recounted. Only 18 out of 67 counties were actually recounted (1). After election day on November 7th, Bush was ahead 2,000 votes; however, the problem was that there were 175,000 ballots declared uncountable because of hanging, dimpled chads or clogged up machines(1). Therefore, Gore’s campaign demanded a recount of all the ballots in counties that said that they voted for Gore. The whole thing lasted about six weeks because the Democrats kept asking for an extension, which the Florida
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Alfred Wegener was a meteorologist and astronomer. He was the first scientist to introduce the theory of the continental drift. Wegener theorized that at one time the continents were one large landmass or Pangaea that had drifted apart. His ideas were initially rejected by other scientists. It was not until long after Wegener’s death that proof was obtained and his theory verified.
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In the middle of the eighteenth century, James Hutton proposed a theory, uniformitarianism; “the present is the key to the past”. It held that processes such as geologic forces- gradual and catastrophic-occurring in the present were the same that operated in the past. (Matt Rosenberg, 2004) This theory coincides with the theory of Continental Drift that was first proposed by Abraham Ortelius in December 1596, who suggested that North, South America, Africa and Eurasia were once connected but had been torn apart by earthquakes and floods. He also discovered that the coasts of the eastern part of South America and the
George Orwell, a very intelligent man who lived during the 20th century, wrote a series of novels manipulating totalitarian government systems. Two of these being 1984 and Animal Farm, which both focus on leaders in full control and what could happen as well as what did happen. Due to his fear of the Soviet Myth, Orwell utilizes this fear as a centerpiece for both novels. Being published in the 1940s,both of these books contain information much like real life events going on in that particular moment in time. Orwell uses propoganda in both novels to not only help the leaders contain all of their power, but also suppress the peasantry’s ability to learn.