Parts Of Earth
Since ancient times, he
has been interested in what lies beneath the
earth's crust and wants to find an explanation. Where do minerals come
from? How many types of stones are there? What are the parts of the earth?
These are many questions that have been asked throughout history. If you want
to know more about the parts of the earth, we tell you more about them. That
part of geology that studies the structure and different layers of the earth.
Internal geodynamics. Our planet is made up of various elements that make life
possible on Earth. There are three elements: solid, liquid and gas. These
elements are present in different layers of the earth. There are many ways to
classify landmasses. In a hierarchy, they are called e.circles. These include
the atmosphere, hydrosphere and geosphere. The Geosphere includes all the
structures and various inner layers of our planet. Layers are divided into two
layers: outer layer and inner layer. In our case, we will focus on the inner
layers of the Earth, that is, the surface of the Earth will begin. parts of the
earth To begin describing the parts of the Earth, we must make two
distinctions. First, standards were established for the chemical composition of
the various layers of the earth. According to chemical composition, we have
crust, mantle and core. It is called static model. Of these we seek.
Lithosphere, Asthenosphere, Mesosphere and
Endosphere. But how do we know where a layer starts or ends? Scientists have
found different ways to understand the types of materials and separate the
layers. These anomalies are regions in the Earth's interior where the type of
material in that layer suddenly changes, ie its chemical composition or the
state in which an element is found (from solid to liquid). First we are going
to classify the layers of the earth based on the chemical model, ie the layers
of the earth will be: crust, mantle and core. Earth's crust An average density
of 3 gr/cm³, which is only 1.6% of the total volume of the Earth. It is divided
into two distinct regions: the continental crust and the oceanic crust.
Continental layer
Continental crust It is thicker and more complex in texture. It is also the oldest crust. It represents 40% of the Earth's surface. It consists of a thin layer of sedimentary rocks, with clay, sandstone and limestone being the most prominent. They also contain silica-rich plutonic igneous rocks similar to granite. Interestingly, most of the geological events that have occurred in Earth's history are recorded in the rocks of the continental crust. It is famous because rocks have undergone many physical and chemical changes throughout history. This is evident in mountains, for example, where we can find ancient rocks that can be as old as 3.500 billion years. Oceanic crust. It has small thickness and simple structure. It consists of two layers: a very thin layer of sediment and another layer of basalt (which is volcanic rock). This crust is young. Because basalts are formed and broken up continuously, the rocks in the oceanic crust are no more than 200 million years old. At the end of the cortex is the continuation of the mold. This continuity is what separates the mantle from the mantle. It is located at a depth of about 50 km.
Minto The mantle is one of the parts of the Earth that extends from beneath the crust to the outer core. It starts behind the Moho and is the largest layer of the entire planet. It is 82% of the total volume of the Earth and 69% of its total mass. The mantle has two distinct layers. Secondary repeat intervals. This hiatus is located at a depth of about 800 km and is where the upper mantle separates from the lower mantle. In the upper mantle we find "Capa D". This layer is found at a depth of about 200 km and is characterized by 5% to 10% partial melting. As heat increases, rocks in the mantle heat up, sometimes rising to the surface to become volcanoes. These are called "puntos calientes" Mantle composition can be determined by these tests:
• There are two types of meteorites: the first is made of peridotite and iron
. • Rocks on Earth's surface. which have been removed from the mantle due to tectonic movements. • Volcanic Chimneys: These are very deep circular holes through which magma rises and exposes them. Its length can be 200 km.
• Tests of seismic wave shortening as they pass through
the mantle suggest that there is a phase transition. Phase transitions involve
changes in mineral composition. At the end of the mantle we get Gutenberg's
continuity. This continuum separates the mantle from the core and s
The core of the earth
It is the deepest part of the earth. It extends from Gutenberg's gap to the center of the earth. It is a sphere with a radius of 3.486 km, so its volume is 16% of the total volume of the Earth. Its mass is 31% of the total mass of the Earth because it consists of very dense matter. In the core, Earth's magnetic field is generated by convection in the outer core, which melts around the inner core, which is solid. It has a very high temperature, about 5000-6000 degrees Celsius, and a pressure of one to three million atmospheres The outer core, between 2,900 and 5,100 km deep, is molten. The inner core, on the other hand, extends from a depth of 5,100 km to about 6,000 km from the center of the Earth, and is solid. It consists mainly of iron, 5-10% nickel, and smaller proportions of sulphur, silicon and oxygen. Tests that help identify nuclear components are:
• Very dense materials, eg. Due to their high density, they live in the interior of the Earth.
• Iron meteorite.
• Lack of iron outside the crust