Essays Tagged: "Crust (geology)"
The forever shifting earth
th was just a ball of molten material. Since then, parts of the Earth have cooled forming the solid crust-mantle. This process has been occurring for roughly about 3.8 billion years. The mantle is abo ... bjected to small long-term stresses.'1Presently, there are more than fourteen plates in the Earth's crust (Figure 22). Upwelling hot magma flows out from mid-ocean ridges and then cools down when expo ...
Subjects: Science Essays > Earth Sciences
Effects of earthquakes on a typical fishing village
n the rocks snap or are displaced along a fault, there will be tremors or vibrations in the Earth's crust (an earthquake). These earthquakes can occur both on land and in the ocean. The extent of dama ...
Subjects: Science Essays > Environmental Science
Spheres Inside of Spheres
er part of the earth or the land. It is brittle and make up Earth's surface layer. It is called the crust and underlying the crust is the upper mantle. The lithosphere is made of the heavy oceanic and ... the crust is the upper mantle. The lithosphere is made of the heavy oceanic and lighter continental crusts, and the upper portion of the mantle. The Moho or Mohorovicic unevenness divides the crust an ...
Subjects: Science Essays > Earth Sciences
Our World's Oceans: Their Importance to Our Planet
fluid base of super-hot magma. This is topped by the lithosphere or the cool outer layer of Earth's crust and can be as much as 60 miles thick. Below the lithosphere is the asthenosphere. This is the ... loors/index.aspThere are 4 Types of convergent plate boundaries:* Divergent boundaries -- where new crust is generated as the plates pull away from each other.* Convergent boundaries -- where crust is ...
Subjects: Science Essays > Earth Sciences > Oceanography
The Layers of the Earth
ntle boundary, and at the center perhaps 7300 degrees Fahrenheit (4000 degrees Celsius).Beneath the crust, extending down about 1800 miles is a thick layer called the mantle Earth's crust floats on th ... t the top of the mantle is less than 1300 degrees Fahrenheit(700 Degrees Celsius) under continental crust .At the bottom, where the mantle contacts Earth's outer Core, the temperature is roughly 7000 ...
Subjects: Science Essays > Environmental Science
Journey To The Center Of The Earth
been to the center of the earth, even machines. Nothing that scientist did could get them past the crust because the temperature and pressure increase the father you go down. Then how in the world do ... eismic waves and rock. That is how Geologists know what is inside earth.Earth has three main layers crust, mantel, and core. Geologist has even gone farther and broke the crust in half, the mantel int ...
Subjects: Science Essays
Journey To The Center Of The Earth
center of the earth, not even machines. Nothing that scientist can do are able to get them past the crust, because the temperature and pressure increase the father you go down. Then how in the world d ... ismic waves and rock. That is how Geologists know what is inside earth.Earth has three main layers, crust, mantel, and core Geologists have gone even farther by giving us 7 layers of the earth. Geolog ...
Subjects: Science Essays
Earth's crust is in a state of dynamic equilibrium
e core. The convection currents move the plates. Where convection currents diverge near the Earth's crust, plates move apart. Where convection currents converge, plates move towards each other. The mo ... re three types of plate margins, divergent, convergent and conservative.At divergent boundaries new crust is created as two or more plates pull away from each other allowing magma to rise, cool and th ...
Subjects: Humanities Essays