How Was Earth Formed Base On Theory of Earth Formation

draw-art (47)in #science • 7 years ago (edited)

The Earth we occupy is one part of the contents of the universe that travels through the process as the whole universe. With such an assumption, then we will always question the condition of the earth in the times before this, or the period before it happened even the earth's time will end.

Image credit

Many experts put forward the theory of the origin of the occurrence of the earth by expressing their respective hypotheses. Some hypotheses about the formation of the earth and the solar system are: Nebula Theory, Planetesimal Hypothesis, Tidal Hypothesis, and Condensation Hypothesis. The following will be explained briefly each hypothesis.

The Nebula Theory
This theory is proposed by Kan (1775) and Laplace (1796) concerning the arrangement of the sun. This theory states that the solar system was originally a cloud of gas or a spinning nebula. As it solidifies, the center of the cloud rotates rapidly and releases the gas rings that form the planets and satellites in circulation and its core mass into the current sun.
Planetesimal Hypothesis
This theory was proposed by Chamberlin and Moulton (1905). Broadly speaking, this theory states the arrangement of the sun is a compilation of twisted fog. In the mist there is a collection of fine objects called planetesimal, with the size of a larger object will attract objects that are smaller in size so that the ball in the middle. In the end, the big ball becomes the sun and planetesimal into planets. Since the beginning of the gyre mists in a state of rotation, then all the planets with their satellites are still rotating and everything is circulating around its center, the sun.
Tidal Hypothesis
This theory was proposed by Yames Yeans (1917). Broadly speaking, this theory states the earth is formed when the star passes close to the sun and pulls out of the sun's surface a huge gas-shaped cigar shaped. Then the clump of gas breaks into parts that cool down and solidify to form the planets.
Condensation Hypothesis
This theory explains that the solar system is formed from the process of compression of clouds of gas and space dust. In the compression process the dust particles are attracted to the central part of the cloud, then forming a spherical ball of rotation. Then the flattened gas clump resembles the shape of the disc, which is thicker in the middle and thinner at the edges. The particles in the center of the disc have a higher pressure causing heat and incandescent, which eventually becomes the sun. While the outer part spins so fast that it splits into smaller clumps of gas and dust, and forms the planet along with other celestial bodies.

The Rock Cycle

The fundamental thought when the earth is formed is the condition of the earth from the form of gas undergoing a change which eventually becomes solid on the surface of the earth. The solid surface of the earth is commonly referred to as rock.

Image credit : Cotf.du

Rocks on the surface of the earth until now has undergone a variety of processes so that rock phenoma observed on the surface of the earth there are several kinds. In general, rock types are divided into 3, namely: igneous rock (Igneus Rock), sedimentary rock (Sedimentary Rock), and rocks malihan / metamorphic (Metamorphic Rock). Each rock can be derived from another rock previously, which undergoes a rock cycle.

Water Cycle

The phenomenon of landslides, volcanoes, floods, tsunamis is a phenomenon that ultimately causes the earth's surface to change. Simple but very influential is because the water on the surface of the earth undergoes a process of rotation from sea to air to the mainland and back again to the sea.

Image credit : usgs.gov

A form of a series of sedemkian until back to the original condition. Hydrology is the study of water events on earth, an explanation of the effect of land properties on water, physical influences on land and studying the relationship of water to life.

Geological Process From Outer Earth (Exogenous Style)

Exogenous force is energy that comes from outside the earth that can damage or overhaul the surface of the earth that has been formed by endogenous energy. Exogenous power also results in changes in the shape of the reliefs on the earth's surface.

Exogenous energy comes from hydropower, wind and organisms that cause weathering, erosion, denudation, and sedimentation. Denudation is a series of long processes that lead to the erosion of the earth's surface and lead to reduced altitude and landscape and landscape reliefs.

Geological Process Of From The Earth (Endogen Style)

Endogenous forces or forces are energy derived from within the earth that can move the earth's crust. Such power can lift the earth's skin above sea level, which then becomes the mainland. Endogenous forces have constructive properties or are called constructive. Endogenous energy is divided into 3 types, namely : Tectonism (diatropism), Volcanism and Seism (earthquake).

Today there are many digital data processing equipment that can be used to detect the existence of gelology beneath the earth. The use of landsat imagery can be done digitally, the result is data about the geological condition of a particular area along with geological data below the surface of the earth. The use of advanced and existing seismic based digital so that seismograph can quickly display digital data tentnag conditions beneath the earth's surface. The use of geoelectric, gravimeter and geophone equipment has been widely assisted by digital equipment. This is faster in data processing and immediately described under subsurface conditions based on the physical properties of the rock.