Pangaea Research Paper

It is unclear why this is happening and research is currently taking place. There have been many hypotheses formed, one suggests that the plate boundary might be shifting towards the east and away from the San Andreas fault. (LiveScience) If you refer to Ch.7 page 228 in the textbook Earth Science, figure 7.25 illustrates where Earths landmasses may be 50 million years from now if present plate movements persist during this time

The plate tectonics theory was made by a German named Alfred Wegener. He stated that a single continent existed about 300 million years ago named Pangaea and that it split into two continents of Laurasia in the north and Gondwanaland in the south. Today’s continents were formed by further splitting of the two masses.

Earth is the only known planet in our solar system that can/does sustain life. About 200 million years ago, each continent formed a super-continent called "Pangea". Pangea split due to the movement of Earth's tectonic plates. "Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core. The plates act like a hard and rigid shell compared to Earth's mantle. This strong outer layer is called the Lithosphere.". Convergent boundaries are one of the three types of plate boundaries that occur on Earth. The other two are: divergent and transform margins. During a divergent margin, two plates are spreading apart. Transform margins show the grinding of two plate in a mostly horizontal motion. One example is the San Andreas Fault Line, where the North America and Pacific plates grind past each other in a horizontal fashion. The major plates are: North American Plate, South American Plate, Pacific Plate, African Plate, and the Eurasian Plate. "Lithospheric plates are regions of Earth's crust and upper mantle that are fractured into plates that move across a deeper plasticine mantle. Earth's crust is fractured into 13 major and approximately 20 total lithospheric plates. Each lithospheric plate is composed of a layer of oceanic crust or continental crust superficial to an outer layer of the mantle. Containing both crust and the upper region of the mantle, lithospheric plates are generally considered to be approximately 60 mi (100 km) thick. Although containing only continental crust or oceanic crust in any one cross-section, lithospheric plates may contain various sections that exclusively contain either oceanic crust or continental crust and therefore lithospheric plates may contain various combinations of oceanic and continental crust. Lithospheric plates move on top of the asthenoshpere (the outer plastically deforming region of

The theory of plate tectonics states that Earth’s outer shell is divided into plates. The crust and upper mantle is broken into plates that move around on the mantle, changing in size throughout time. The lithosphere makes up the crust and upper mantle and the asthenosphere a plastic like layer beneath the lithosphere. There are three types of plate boundaries. Divergent boundaries where two plates move away from each other. The ocean widens and new crust forms at the mid-oceanic ridge. Convergent boundaries has three types of converging, moving two plates towards each other. First we have an ocean floor plate that collides with a less dense continental plate. Next an ocean floor plate collides with another ocean floor plate. Finally a continental plate collides with another continental plate. Transform boundaries were two plates slide past one another. The resulting effects of plate tectonics is landforms such as rift valleys,

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.

Plate tectonics is the scientific theory that attempts to explain the movements of the Earth's lithosphere that have formed the landscape features we see across the globe today” (Briney). Geology defines “plate” as a large slab of solid rock, and “tectonics” is part of the Greek root word for “to build.” Together the words define how the Earth’s surface is built up of moving plates. The theory of plate tectonics dictates that individual plates, broken down into large and small sections of rock, form Earth’s lithosphere. These fragmented bodies of rock move along each other atop the Earth’s liquid lower mantle to create the plate boundaries that have shaped Earth’s landscape. Plate tectonics originated from meteorologist Alfred Wegener’s theory, developed in the early 20th century. In 1912, he realized that the east coast of South America and the west coast of Africa appeared to piece together like a jigsaw puzzle. He further examined the globe and deduced that all of Earth’s continents could somehow be assembled together and proposed the idea that the continents had once been linked in a single supercontinent called Pangaea. To explain today’s position of the continents, Wegener theorized that they began to drift apart approximately 300 million years ago. This theory

200 million years ago a supercontinent called Gondwana existed. It was made up of South America, Africa, Australia, India, and Antarctica. Fossil evidence shows that certain species have lived in multiple places, but these places are far apart. This proves that they lived in one place, but were separated from their ancestors when the plates split, causing earthquakes. In addition,

240 million years ago. Then, about 200 million years ago the rift that would evolve into

The mechanism breakup proves that Pangea is real because each year The continents move 2.5 centimeters. that means over those three million years ago did moved how far they are today. That is a perfect explanation for how Far apart the continents are today. That's why I believe in the Pangea theory. And Pangea is also a good. Because Africa and South america can connect and it would be like one big landmass.

The Plate Tectonic Theory developed in the late 1960’s, when people noticed how continents either side of the Atlantic Ocean seemed to almost fit together. Francis Bacon, an English Philosopher was aware of this as early as 1620. Topographical and geological evidence built up and allowed Alfred Wegener to publish a theory in 1912, suggesting that the continents were once all joined together in a supercontinent he called Pangaea. Wegener proposed that at some time, the land masses had drifted apart until they occupied their current positions on the globe. There was lots of evidence to support his theory including

If a modern Pangea were to happen, the world would be different and it would affect many interactions. Objects in the world would be displaced. Other factors that might change may be the government, economies, societies and immigration. The relations between countries and continents would change as well. If all the continents were to collide into one supercontinent, things would have to change. These changes would be both positive and negative. Modern Pangea would be a very different place than it is today due to animals, transportation, and daily life.

The three major types of tectonic plates are divergent, subduction and transform. Divergent plates tend to move apart from each other. Subduction plates are when oceanic plate moves under a continental plate. This can cause volcanos to erupt and large sized earthquakes. Transform plates slide back and forth against one another. The Lithosphere consists of the Earths crust and uppermost mantle. The North American plate and the South American plate are the major plates of the lithosphere. The lithosphere also consists of the Pacific plate, the African plate and the Eurasian plate. The Pacific plate is the only major plate that is mainly underwater and is also the largest plate in the lithosphere. The Earth was once one large continental body called Pangea, before the plates started

The earth has been through a lot of changes throughout time. It used to be thought that the continents were locked in their positions and couldn’t move, but in 1915 Alfred Wagner came up with a theory about continental drift (Tarbuck and Lutgens, 2015). While unsure of the process that happened at the time, Wagner also came up with the idea that all the continents in existence today were once all connected as one giant continent known as Pangea. This idea is supported by the findings of similar rocks or fossils in multiple locations separated by large water bodies. Thanks to more tools and funding, the oceanic ridge system was found and by 1968, the theory of plate tectonics was introduced (Tarbuck and Lutgens, 2015). This theory

The last supercontinent was Pangaea and it formed around 300 million years ago. Blackstone's rocks, safely floating and rotating on Laurentia, as it headed towards a collision with what would become Africa. Pangaea lasted 100 million

The Jurassic Period was the second half of the Mesozoic Era. It took place around 199.6 to 146.5 million years ago, following after the Triassic period and before the Cretaceous period. During this time period, the supercontinent known as Pangaea broke apart. The Northern half, called Laurentia and would later part into North America and Eurasia, was starting to split. The tearing of this part of the continent also started to make way for water passages that would soon be known as the Gulf of Mexico and the Atlantic ocean. Meanwhile, the southern half, Gondwana, started to drift in a more eastern direction, slowly pulling apart in order to begin the creation of Antarctica, Madagascar, India and Australia. A more western portion of Gondwana