A single supercontinent that broke apart to form the modern continents is called the theory of continental drift. He posited that the now separated continents floated and drifted through a highly viscous sea floor. This part of his theory was later proved incorrect but the basic notion of drifting continents was right. Wegener 's problem was in identifying correctly the forces that ripped apart the pieces and in fact keeps them moving. Other theory which is accepted, that new land was being created on either side of the mid-Atlantic ridge, the so-called "sea-floor spreading"
It drives plate tectonic motions of continents and the sea floor. The continents are formed after continental crust, formed from igneous, sedimentary and metamorphic rock. Oceanic crust is denser than the continental crust, therefore, at convergent margins, the continental crust remains at the surface while the oceanic plate is pushed down. Then the continental crust reinforced and gets thinker by the lava from subduction zone volcanoes. Question 6: How
PLATES TECTONICS Plate tectonics is the scientific theory that attempts to explain the motion of the Earth’s lithosphere that have formed the landscape the landscape features we see cross the globe. The theory of the plates tectonics state that the lithosphere of the earth is build up from single plates that are broken down into dozen massive and tiny particles of solid rock. These pieces of plates move near each other on the peak of the earth more fluid lower mantle to produce various type of plates boundaries that have influenced the earth’s landscape over million years. A long time ago, a meteorologist Alfred Wegener discovered a theory that led to plate tectonics. East coast of south America and west coast of Africa appeared to fit together
The Moon controls tides, which is 71% of the Earth 's surface. The origin of this object has been a question for many years. The most believed theory for how the Moon formed is called the Giant Impact Theory. This theory shows that a mars sized object came into Earth 's orbit, resulting in a collision. This collision caused a piece of Earth and debris to break off.
The Yellowstone Caldera is a volcanic feature formed by the collapse of a volcano into it’s own magma chamber in the North Western edge of Wyoming. Calderas are cool, I’ll give you that. But do you know what’s even cooler? A supervolcano. Supervolcanoes are even more powerful than regular volcanoes.
Then, there was Alfred Russel Wallace, he had a major influence on Darwin theory. Wallace, did the same thing Darwin did, he went on a voyage but he went to different islands and he noticed the same thing Darwin noticed in other species but he could not exactly put a name on his findings, so he sent his work to Darwin. That is when Darwin came up with natural selection and he wrote his book and years later Wallace wrote a book called Darwinism. 2. Earth was formed 4.568 billion years ago and early earth consisted organic molecules; hydrogen compound, methane, water vapor, and ammonia.
This belief of natural selection came from Charles Darwin. Many ideas led him to believe what he believed. One of them was, James Hutton’s ideas about geological change. His theory consisted that sediments, rocks, soil, etc were made after the great flood and new species “rose” from that disaster and that it’s a cycle. Charles Lyell’s theory also shaped his thinking.
The plate also seemed to be black. The significance in this artifact is that it is seemed to be “the steel known to man.” That is huge because it seemed to be years and years before what was thought of at the time. The iron seemed to be left in the Great Pyramids so that it could not be asserted. The artifact comes from the Great Pyramids. Some have theories that the Rock was placed deep in the pyramids on purpose to hide it.
How did the Earth originate? Was there any supernatural being behind the creation of the Earth? There have been many claims and theories on how the Earth originated such as “The Big Bang Theory” and “The Nebular Theory” meanwhile there were two theories and claims that caused a debate for almost more than a century which is Evolutionism and Creationism. The Theory of Evolution is false because it could not prove any scientific evidence unlike Creationism that base all of it facts on the Bible, that has been proven scientifically and historically accurate. The Evolution Theory is one of them most common ways to contradict Creationism as it tries to prove that the world is over 4.5 billion years, Humans evolved from apes by natural selections,
As the elements begin to clump together, the gravity of the clumps grow. This causes the mass to form a spinning cloud disk, known as a protoplanetary disk with a protostar in the center. As the protostar’s temperature increased due to the increased gravity and therefore kinetic energy, the disk continued to spin faster and get flatter. Once the temperature reached 10 million degrees Kelvin, the hydrogen and helium begin to undergo nuclear fission. This is where atoms will collide and fuse together to form larger and heavier elements.
I decided not to climb up the seamount because I was still weary of the possibility of there being an eruption and I continued on my way. While walking from the Bear Seamount, I came across the Mid-Atlantic Ridge (38.7691,-30.96474). Commonly called MAR for short, the ridge is the longest mountain range in the world. It was formed by the tectonic plates diverging. Through this rift, magma rises from the mantle and erupts as lava to produce new crust material on the torn edges of the tectonic plates.
When the layers of the Earth move it causes the tectonic plates (aka: plate tectonics) to move which causes the Alaskan Way Viaduct to collapse. The layers of the Earth are the inner core, outer core, mesosphere, asthenosphere, upper rigid mantle, oceanic crust, and the continental crust. The Density Column lab showed how things can have different densities like the layers of the Earth. It also showed how things that are most dense stay more towards the bottom and least dense stuff stays more towards the top. The Density
Activity of the Cascadia Fault is what had triggered the activity of St Helens in 1980 and in 2004. The Cascadia fault is a convergent plate boundary. The fault is a described as long and slopping, it starts in Northern Vancouver Island and expands down to Northern California. The Cascadia fault line separates the Juan de Fuca plate and the North American plate. Tectonic processes active in the Cascadia subduction zone region include accretion, subduction, deep earthquakes, and active volcanism of the Cascades.
On the west coast, from Washington State down to California, the levels of acid are increasing and deceasing which gave sea urchins the ability to flourish. They flourish by turning on more of their genes to help create a skeleton. Other parts of the ocean are thriving such as the seagrass in the coral reef by taking the CO2 and converting it into sugars. I believe that the documentary was precise when proving how much fossil fuels are destroying the ocean life. My opinion on the video is that we need to find ways to prevent the wide spread of acidity that is increasing over time across our earth.
Researchers and scientists think it will erupt again in 2018. The two main ways of detecting future eruptions is the amount of earthquakes and the magma. Hydrophones, Robotic Submersibles, Sonar, Seismic Analysis, are the technology that they use. The Seamount has erupted in 1998, 2011, and again in 2015. A caldera is a large crater that’s volcanic.