GEOLOGY - Earths Interior

Introduction For thousands of years, human beings lived on the third planet from the sun; the planet supporting life is like the earth for us. There has been a long period on the earth, but it has been in the past several centuries that humans began to understand what constitutes the interior of the planet. British scientist Isaac Newton can be regarded as a pioneer in learning the earth. Calculating from studies of planets and gravity, the average density of the earth is twice that of the surface rock and it is inside the earth . It must be composed of denser material.

Geophysics includes research on the Earth including methods and principles of physics. The scope of geophysics covers almost all aspects of geology, including conditions within the depth of the earth, temperatures of several thousand degrees Celsius and pressures of several million atmospheres, and the outside of the earth including the atmosphere and hydrosphere Including. . Research inside the Earth provides a good example for geophysicists to solve problems. Direct observation is clearly impossible. However, the extensive knowledge of the interior of the Earth comes from various measurements, including seismic waves caused by earthquakes through the Earth, heat flow measurements from the Earth's interior to the outer shell, and astronomical and other geological considerations.

Like other sciences, geology is based on experiments, observations and theory. Earth scientists and physicists have developed experimental methods to study the performance of substances under the pressure and temperature inside the earth, including core temperature and pressure. Determines characteristics such as density, material state (liquid or solid), stiffness, compression ratio, and the rate at which seismic waves pass through these materials at high pressure and high temperature. These studies can refine our knowledge of the internal composition of the earth and how it behaves. Since these experiments show that substances containing these components have the same density and seismic velocity as observed on the Earth, the mantle is super mafic and the core is mainly iron and nickel I support the theory.

Geology is a major earth science. That word means "to study the earth". Geology includes the material composition of the earth, the structure of the earth, and the processes of the earth. It also focuses on how the Earth's creatures and the Earth change over time. Geologists look for fuels and minerals, study natural disasters, and work to protect the environment of the earth. Map the lava flow: Volcanologist Vollanologist Charlie Bacon of the US Geological Survey divides the prehistoric lava flow boundary of Alaska Mount Vennia Minnov into a map. This map shows areas covered by past lava eruptions and can be used to estimate the potential impact of future volcanic eruptions. Alaska scientists are often spraying guns (foreground) and pepper to prevent grizzly bears. Rucksacks are full of food and life support tools, and there are helicopters called bidirectional radios. Charlie's Orange Overalls help the pilot find him on the date of pickup. Image courtesy: US Geological Survey / Alaska Volcano Observatory Charlie Bacon