A Destructive Plate Margin and Constructive Plate Margin
These are the plates and were they meet
Were the arrows are pushing against each other this is called a
DESTRUCTIVE PLATE MARGIN here a oceanic plate and a lighter
continental plate push against each other the oceanic being heavier is
pushed down into the mantle and melted down then the magma finds a
crack or hole and pushes the magma above the ground to form a volcano.
Where the plates are pulling away from each other this is called a
CONSTRUCTIVE PLATE MARGIN here an oceanic and a continental plate pull
apart from each other. Magma rises to fill the gap and if it reaches
the surface it erupts as a volcano. Over time the ridge is built up by
volcanic successive eruptions and volcanic islands may appear above
the surface of the ocean e.g. surtsey.
[image - cross section of the earth]
Plate Boundary
Diagram
Description
Example
Constructive plate boundaries
[IMAGE]
Constructive plate boundaries occur when two plates move away from
each other
North American and Eurasian Plate
Destructive plate boundaries
[IMAGE]
Destructive plate boundaries occur when an oceanic plate is forced
under a continental plate
Pacific Plate and the Eurasian Plate
Conservative plate boundaries
[IMAGE]
Conservative plate boundaries occur when two plates slide past each
other.
North American Plate and the Pacific Plate
Collision plate boundaries
[IMAGE]
Collision plate boundaries occur when two continental plates move
towards each other.
Indo-Australian and the Eurasian Plate
When you get plates moving apart from each other i.e. the South
American plate and the African plate. These causes a gap were magma
rises and we get a volcano. This starts in the sea but after constant
eruptions the lava builds up and solidifies. This then builds up until
the volcano gets higher and higher.
When an oceanic plate pushes against a continental plate this causes
In Regina Calcaterra’s memoir, Etched in Sand, the speaker is Regina as a ten-year-old female, who was being abused, and forced to grow up much faster than most, other children her age. She wrote this book to reach her siblings, and show her love for them; but she also was looking to reach out to children who were/are being abused, are in foster care, and who are homeless. The book was set in The Hamptons of Long Island, during the 1970s and 1980s. Regina and her four other sibling were being abused by their mother, who was hooked on drugs and alcohol, and was all around a very irresponsible person. This group of siblings, were moving quite often because their mother either did not remember to pay the bill, or they were sleeping in the back
and Metamorphic rocks can be found. There are also a lot of crusted plates, and violent
Asctaeus Mons: Its inclines are most steep in the center part of the flanks, leveling out toward the base and close to the top where a wide summit level and caldera complex are found (Ascraeus). It is encompassed by runny magma that streams surrounding it.
The crumple zone is an essential part of any car that provides safety for the passengers during collusion with another car or object. Without any form of a crumple zone, passengers would be much more likely to suffer from injury or possibly death. For this same reason, crumple zones have existed in cars for years and are still being improved to this day. One way you can better understand a crumple zone is by creating a scale model. My group and I have made multiple crumple zones with trial and error to better understand them and how they work.
Later after the sea finally retreated occurred volcanic activity. Mountains rose through laccoliths, which also resemble volcanoes. These laccoliths differ in that they do not erupt. They shifted layers of rock upward in the shape of a dome. This specific piece of geologic morphology occurred at the end of the Cretaceous time. This marked the beginning of the Laramide Orogeny, which was a well-known period of mountain formation in western North America.
Basalt forms due to the partial melting of the layer of the mantle called the asthenosphere. The asthenosphere is the plastic zone of the mantle beneath the rigid lithosphere. Mantle plumes coming from the mesosphere can cause the asthenosphere to melt with heat or even if pressure decreases, which is called decompression melting (Richard 2011). The magma that forms from this melting is mafic magma that solidifies once it reaches the earth’s surface and cools quickly. The above process mainly occurs mainly during intraplate igneous activity which is the main explanation for volcanic activity that occurs a long distance away from a plate boundary. If the tectonic plate above the mantle plume is moving it can create a string of volcanic activity such as in Hawaii. See Fig 2.
Super volcanoes are formed when magma rises from the mantle to create a scorching reservoir in the Earth's
Convection currents deep in the mantle of the earth, begin to well up towards the surface. As the pressure increases, it sets the crustal plates in motion. There are different kinds of mountains - Volcanic, Folded, Fault-block, and Dome mountains. Volcanic mountains are formed when magma comes up through cracks in the Earth’s crust and explodes out of lava and ash. The Hawaiian volcanoes, Mt. Hood, Mt. Etna, Vesuvius, and Mt. Saint Helens is an example of volcanic mountains.
The Sand Cone Model describes business improvement as a process which should be based on improving specific competitive dimensions in a different order (Meredith & Shafer, 2013). For instance, a business which is struggling with quality outputs should place an emphasis on improving the quality of its outputs first. Businesses that produce high quality outputs are successful over the long term. Matthew 7:24-25 (ESV) states, “Everyone then who hears these words of mine and does them will be like a wise man who built his house on the rock. And the rain fell, and the floods came, and the winds blew and beat on that house, but it did not fall, because it had been founded on the rock.” When a business builds its foundation on
Igneous rocks are formed from the ejection of earth’s volcanoes. Deep down inside earth’s mantle there lies hot magma. Magma is molten rock that is kept below the surface. This mixture is usually made up of four parts: a hot liquid substance which is called the melt; minerals that have been crystallized by the melt; solid rocks that have made themselves tangled in the melt because of loose materials, and finally gases that have become liquid. Magma is created by an increase in temperatures, pressure change, and a alter in composition. When this magma is ejected from earth’s crust it earns a new name called lava. The lava hardens and becomes an Igneous rock.
This type of wave can only travel through solids. Measuring these waves is called seismology.Scientists have known for a long time that the lava, which comes out from volcanoes when they erupt, was from the mantle. The asthenosphere is the probable source of much basaltic magma, this is because the velocity in S-waves is slowed down and partially absorbed in the asthenosphere.
Volcanoes are formed when magma is expelled from the Earth’s surface, resulting in volcanic eruptions consisting of ash and lava. Over time, the lava cools and forms into rock on the Earth’s surface. Whenever an eruption occurs, the newly-formed rock from the lava layers continuously until the volcano takes its shape. Volcanic eruptions have taken place for thousands of years, and even today, according to the U.S Geological Survey (2010), there are approximately 1500 active volcanoes located throughout the world.
inferred for the reservoir (4). The magma ascent to the surface occurred through a conduit of possibly 70 to 100 m in diameter (5). A thermal model predicts that such a reservoir should contain a core of partially molten magma (6) that can be detected by high-resolution seismic tomography.
Throughout my lifetime, I have never had to think very much about the working world and everything that went with it. All through high school I took classes I liked or thought would be interesting to me, but never thought that all of those classes were preparing me for what was to come. Before I knew it, it was time to go to college. The four years of high school had flown by and now it was time to choose a major for college. I had never given much thought as to what I wanted to do for the rest of my life. The only real occupations that I had really gotten to experience were teaching, the jobs that my parents had, and others such as doctors, dentist, most of the occupations that everyone sees while they are growing up. When I finally decided on my major, I chose engineering, but I didn’t know if I would like it or not. The only prior knowledge I had about it was the fact that my grandfather was an electrical and chemical engineer, and that my parents and teachers said that I would be good at engineering. Recently I have been interested in civil engineering, but what does one do with such a degree? What opportunities are available to a person with a degree in civil engineering on the job market? The broad curriculum that covers many different fields of engineering make civil engineering a major that allows a person to work in nearly any field they wish.