Continental Drift

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.

The first, would be Land features. Alfred Wegener saw how the coal fields in North America and Europe lined up, he also realized that mountain ranges in North America and Africa lined up. The second, evidence he used were the fossils. There were three types of fossils he found the first was the glossopteris a fern like plant found in Africa, South America, Australia, India, and Antarctica. The second and third were the Mesosaurus and the Lystrosaurus fossils, they were freshwater reptile fossils on continents separated by oceans. The third evidence Alfred Wegener used was, the climate zones. Alfred Wegener looked at the past of the climates and he found scratches in rocks from glaciers in South Africa. Those were the three main evidences Alfred Wegener used to prove Continental Drift

The theory of plate tectonics was first developed by Alfred Wegener. He concluded that the continents seem to have a similar shape and could potentially fit together. This suggested that they were at one time joined together as part of 2 super continents called Gondwanaland and Laurasia was in the north. This theory was said to be proven by the discovery of fossilised remains of a mesosaurus that were found on the coasts of Brazil and Gabon. Sea floor spreading is another theory that supports the idea of plate tectonics; this theory discovered that rock is being formed under the ocean as a new sea floor. Sea floor spreading was shown in the Atlantic, where it is believed the Eurasian and North American plates are moving apart on a

There are many differences between continental drift and sea-floor spreading and plate tectonics. there are also lots of differences between continental drift and sea-floor spreading and plate tectonics. They all have different factors that makes them different or the same. Sea-floor spreading is an important part of the world. Plate tectonics and continental drift are all also an important part of the world. There is a lot of ways to tell you about the differences and similar traits like showing you or just simply telling you about them.

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.

Geologists believe that over 200 million ago, continental drift carried the Old World and New Worlds apart, splitting North and South America from Eurasia and Africa, eventually creating two separate biological worlds (Crosby, 2009). In 1491, the Atlantic and Pacific Oceans were nearly impassable barriers, and America might as well have been on another planet from Europe and Asia (Morris, 2011). However, when Christopher Columbus and his fellow voyagers made land in the Bahamas in 1492, the plant, animal, and bacterial life of these two worlds began to mix, and the world as we knew it would be forever changed (McNeil, 2008).

According to the theory of “Pangaea,” the world was once a single mega-continent that contained all the dry land about 225 million years ago. North America was shaped by the majestic Canadian Shield about 10 million years ago.

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

Who proposed that all of the present continents were once joined together in a single supercontinent called Pangaea?

Much proof of the evolution of organisms and change in the environment overall is shown through fossils. Some of the most unusual fossils found in Australia were disovered at Riversleigh. Animals such as the Lungfish show a strong development in animals as adaptations are cleary seen through, for example, the fact the the lungfish has developed, working lungs that it can us to breathe with on land unlike any other fish. The lungfish shows the tranformation of fish swimming only being ablt to live in water to fish adapting and being able to live on land whilst their body has become dry in the dry season. It shows the evolution from sealife to land life and shows inbetweens for the evolution of the creatures. There are also records of many ancestors of animals that walk the earth today. examples include primative koalas and wombats, a range of ancestral thylacines and platypus, aswe as rodents whch show the evolution of placental mammals. Many of these organisms evolved from what they were and adapted as the climate changed to suit more and became the animals we see today. many similar types of flora and fauna fossils as well as the formation of rocks are similar so due to the continental drift. the continental drift is the drifting apart of all continents from one full land mass into the locations they are currently in. all landmasses were original joined as one big land mass caled 'Pangaea', because all organisms existed on a single land mass aswell, similar fossils can be found, as can rock formations. some evidence of continental drift was that a man named Alfred Wegener went out and matched up the same rock ike a puzzle with different pieces from different parts of the world and they

The theory of Pangaea suggests that the continents were once stuck together into one huge continent. Eventually they started drifting into separated landmasses, which gave birth to the modern continents.

Most theories of how the American continent was populated date back thousands of years and are brought up by evidence such as bone structure, genetics, skeletons, and weather patterns. Although some religions and tribes have opposing theories not based on cold hard facts but beliefs. To begin, the Clovis theory states that around 16,500 years ago modern humans migrated from Southern Siberia over the Bering Land Bridge that connected the American continent to the Asian continent. This theory is based off of genetic findings and past knowledge of weather patterns, earth’s movements, and the tectonic plate theory. To continue, the second theory is that African people

Wegener provided numerous explanations and documentation in support of his continental drift theory. He provided two fossils as evidence. Glossopteris because it had been found on several continents that were widely separated. Glossopteris, also known as a seed fern fossil, was too large to be transported by the wind. The other was Mesosaurus which was a small aquatic freshwater reptile (Lutgens & Tarbuck, 2014, p. 154). Other scientists believed this was possible because land bridges had once existed or explained it away as drafting. Wegener most likely did not offer fossil sharks or jellyfish as evidence due to the fact that these fish inhabit all major oceans on the planet.

To start off with fossils that were from, for example,Europe were found in, for example, North America. This is a good reason because i do not think

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