Skip to main content

The history and origin of the Earth

The planet Earth 4.5 billion years ago was a mass of clustered rocks whose core melted the planet.Over time it dried and cooled to form a crust solid and consistent.After a long cooling process, the formation of gases and the interaction with the air is the atmosphere .

The history and origin of the Earth

Index of the article

Formation of the solar system

The scientific studies confirm that it does around of 13.8 billion years there was a big explosion that they called Big Bang .The exorbitant force that was unleashed dispersed all the matter that was in all possible directions at speeds too exorbitant.As time went by, they moved away from the place of the explosion and slowed down.The nearby matter stayed for p roast to be what are now the galaxies .

The history and origin of the Earth

In the immediate vicinity of the limit of our galaxy is the Via Lactea. These fractions of matter were condensed in a dense cloud about 5,000 million years ago.All this matter was constituting a huge mass thanks to gravitational forces, until a sphere was achieved.

The history and origin of the Earth

This huge sphere was and is incandescent becoming a star that is the Sun .Other small masses around it also received similar processes while they were markingororbits around the Sun With them, these small masses were constituting planets and some satellites.At an adequate distance I was located what in the future would be our planet, the Earth .

The history and origin of the Earth

Earth Formation

After all the processes suffered on Earth as we have advanced at the beginning, the Earth begins to generate some stability.The formation of the Earth's crust and the constitution of the Atmosphere are the beginning of a long trajectory.Until it became a relatively habitable planet, several million years passed.Life on our planet was not created until after a few billion years.

The history and origin of the Earth

The Earth, in its beginnings, was a kind of target for the meteorites. These were going through our current solar system receiving countless impacts.The sum of the volcanic activity, which caused huge lava masses, was creating mountains that they were solidifying until they achieved landscapes with reliefs.

The history and origin of the Earth

The prolongation of the volcanic activity was generating a huge amount of gases ending up forming a layer on the surface that today is the atmosphere.This was the first protective layer created.At that moment a series of changes on Earth began thunderstorms, condensations, rains...begins to develop a new stage.

The history and origin of the Earth

The mixture of oxygen and hydrogen and the heat caused water vapor , which when rising towards the atmosphere was generating condensation with later rainfall .Over time the bark was getting colder and colder.The rainwater could be kept liquid in the most parts deep in the crust, with the subsequent creation of oceans, the hydrosphere.

Geological history of the Earth

From the formation of the Earth To this day, our planet has been going through many processes and changes.Since its early stages since the cooling and the constitution of a permanent crust , there is no evidence of what happened The rocks that were being created would dissolve again or they disappeared swallowed because of the volcanic eruptions .

The history and origin of the Earth

These phases remain a mystery to man.All the cycles through which the planet has passed have been erasing the traces of that time.

Geological epochs, periods, eras and eons

The most extensive unit in geological time is the eon .This is divided into several eras geological , each era is constituted of several periods and each period is divided into several epochs .Obviously, we can have more geological data the more recent the geological period.

There are four types of rocks that offer us data of each cortical activity carried out throughout all those geological periods and are:

  • The sedimentary rocks .These have been caused through the erosion and transport creating sediments.After compaction, several layers of this type of rock have been formed.
  • The volcanic rocks .This type of rocks are the ones that have been originated from magma, which was generating molten rock that after cooling have formed part of the earth's crust.
  • The precambrian rocks .This type of rocks is a series of geological structures that have been formed from existing rocks.Those rocks before being restructured already had some kind of deformation process.

The phases of the geological timescale are derived from the variations of the fossil compositions. Throughout history and with the persistence of experts, they have been found in successive strata .

The history and origin of the Earth

Aspects of planet Earth

The former pertos have divided the great geological history of the Earth into two times:

  • The precambrian , which includes the Azoic, archaic and Proterozoic ages.
  • The Phanerozoic, begins with the Cambrico period until today whose time is the Holocene.

One of the greatest finds that allowed the experts of the XX century to run new dating methods, was the radioactivity .Thanks to this discovery, it has been possible to study and assign ages of millions of years in the divisions of the timescale.

Life on Earth

Approximately 2.5 billion years ago, the eero of the Proterozoic begins.This word is defined as time of the beginning of life .they manage to join the warm and humid environment to create what would be the first living beings.

These single-celled organisms needed 2,000 million years to dispose r of an organization with more complex forms.As the oceans stabilized and the atmosphere adjusted, it is estimated that 560 million years ago the first multicellular organisms emerged.

With the appearance of these organisms, the Phanerozoic begins. This is where a large sum of fossils that manifest the presence of multicellular life on planet Earth are already characterized.

Comments

Popular posts from this blog

Gregory Agagianian Biography

Gregorio Agagianian (Akhaltizikhe, 1895-Rome, 1971) Armenian Prelate.Head of the Armenian Church united under the name of Peter XV (1937-1962).Created a cardinal by Pius XII (1946), he was appointed prefect of the De Propaganda Fide congregation (1960).

Biography of Jesus Hermida

Jesus Hermida journalist who for more than 50 years told us some of the most important events in history, such as the arrival of Man on the Moon, has died in Madrid at the age of 77 years and therefore we explain below , and in detail, his biography. Article index Biography of Jesus Hermida Jesus Hermida was born on June 27, 1937 in Ayamonte, Huelva.He begins in the world of journalism through the weekly Catholic Action Week , Signo, in the Europa Press agency, after what he served as editor-in-chief of the Informaciones newspaper. In 1967 he moved to New York where he began working as a TVE correspondent , work I do for 11 years and that allowed being able to narrate live the arrival of man on the moon on July 21, 1969. In 1978 he returns to Spain participating in several programs such as «Chronicle 3» or «Your Turn».He also conducted radio programs such as «Zero Hour» or «Long Live People». Between 1987 and 1989 he presents on TVE« In the morning », a ...

Historical significance in the Inauguration of Beijing 2008 (2/2)

The Chinese culture, one of the oldest cultures in the history of mankind.A culture in which superstitions are part of their culture and tradition.For the Chinese population , these games were something special, we had to show the world the beauty of ancestral traditions and the modernity of a China that opened the doors to the world.In this article, continuation of Historical Meaning in the Inauguration of Beijing 2008 (1/2), we will discover the meaning of each inaugural performance.Let's begin to unravel this and other curiosities related to the Historical Meaning in the Inauguration of Beijing 2008 (2/2). Article index Historical significance at the Beijing Inauguration 2008 | The Start You could not expect less from the Chinese organization, hundreds of people on stage, perfectly coordinated, lights, sound, technology and especially history. The opening of the Beijing Olympics 2008 , showed the world the technological and economic progress of a great power such as C...

Johannes kepler Biography

Johannes Kepler (Würtemburg, present-day Germany, 1571-Regensburg, id., 1630) German astronomer, mathematician and physicist.The son of a mercenary (who served for money in the hosts of the Duke of Alba and disappeared into exile in 1589) and a mother suspected of practicing witchcraft, Johannes Kepler overcame the consequences of an unhappy and sordid childhood thanks to his tenacity and intelligence. Johannes Kepler After studying at the seminaries of Adelberg and Maulbronn, Kepler entered the University of Tübingen (1588), where he studied theology and was also a disciple of the astronomer Michael Mästlin, a follower of Copernicus.In 1594, however, he interrupted his theological career by accepting a position as professor of mathematics at the Protestant seminary in Graz. Four years later, a few months after entering into a marriage of convenience, the edict of the Archduke Ferdinand against the Protestant teachers forced him to leave Austria, and in 1600 he moved to Prague...

Alexander Olivier Oexmelin Biography

Alexander Olivier Oexmelin (Alexander Olivier Oexmelin or Exquemelin; Honfleur, 1645-Amsterdam, around 1707) French traveler and adventurer.It seems that his real name was Henrick Smeeks.He must have been a Huguenot, which forced him to flee France during the great religious persecutions.He left Le Havre in 1666 (the date on which he began his well-known book), aboard the ship San Juan, belonging to the French Company of the West Indies.He should have reached the French West Indies, but on a ship he was raided by pirates and Oexmelin was sold as a slave on the island of Tortuga. During his captivity he learned the trade of surgeon from his master, with which he later enlisted in filibustering when he achieved freedom.He was with the Brothers of the Coast and later with famous filibusters, such as L'Olonnais, Morgan and Bertrand d'Orgeron. He participated in the catastrophic disaster in Puerto Rico in 1674 and was involved in all the major filibustering actions in the Car...

George stephenson Biography

George Stephenson English mechanical engineer who invented the steam locomotive (Wylam, Northumberland, 1781-Chesterfield, Derbyshire, 1848).The son of a mechanic who operated a steam pump to drain water in a mine (of the Newcomen type), he became familiar with these machines from a very young age.His curiosity led him to study at night school, and while he made a living doing all kinds of trades, he continued to educate himself by helping his son review the lessons. George Stephenson Finally established as chief mechanic at the Killingworth mine, from 1813 he became interested in the application of James' steam engine Watt to the hauling of wagons on rails.He created the Blucher locomotive, which he progressively perfected, until in 1821 he convinced the promoters of the Stockton to Darlington railway project to have it drawn by a steam locomotive and not by horses; This is how the first modern railway line emerged, built by Stephenson in 1825. Success led to a call to ...

Augusto Roa Bastos Biography

Augusto Roa Bastos (Asunción, 1917-2005) Paraguayan narrator and poet, undoubtedly the most important writer of his country of the 20th century and one of the great novelists of Latin American literature.He spent his childhood in the town of Iturbe, a place that inspired many of his creations.In 1932 he ran away from home to enlist in the army during the Chaco War.Those years, during which he remained in the rear, were crucial in providing him with anecdotes and experiences that would feed his literature. Augusto Roa Bastos Since 1936 he worked in Asunción as a journalist for El País , of which he was later director.At that time, with Josefina Pla, Hérib Campos Cervera and a few others, he began what would become the Paraguayan poetic renewal of the 1940s.In 1944 he traveled to Great Britain, at an invitation from the British Council, and worked there as a correspondent for his newspaper and also at the BBC in London, where he was the first Paraguayan announcer. From 1985 onw...

Alejandro de la Sota Biography

Alejandro de la Sota (Pontevedra, 1913-1996) Spanish architect.He studied high school in Pontevedra and two years of mathematics at the University of Santiago de Compostela.He moved to Madrid to study architecture at the Higher Technical School of Architecture; in 1941 he graduated and in 1965 he would obtain a doctorate.In 1956 he began his teaching task at this university as a professor of Projects and Composition Elements; He served as professor of this last subject from 1969 to 1972. He was one of the most significant figures in Spanish architecture of the time.He belonged to the post-war generation of 1940, made up of Cabrero, Fisac, Coderch, Moragas, Fernández del Amo and Sostre, among others, who received the title around that year and present a certain homogeneity of style due to social and political conditions of the moment. Among his works stands out the Gymnasium of the Maravillas School (Madrid, 1961), considered one of the most important works of recent Spanish arch...

Bruno walter Biography

Bruno Walter (Berlin, 1876-Beverly Hills, 1962) German conductor and composer, nationalized American.Bruno Walter studied music at the Stern Conservatory in his hometown with the intention of undertaking a career as a pianist, an instrument with which he debuted as a soloist at the age of thirteen playing the Piano Concerto in E flat de Moscheles with the Berlin Philharmonic Orchestra.But it was when listening to Hans von Bulow conduct that he decided to focus on conducting.In 1894, at the age of eighteen, he made his debut with the opera Der Waffenschmied by Gustav Lortzing leading the orchestra at the Cologne Opera. Bruno Walter Until 1896 he remained in the orchestra as a trainee conductor, and that same year he moved to Hamburg, where he received lessons from Gustav Mahler.His relationship with Mahler was decisive for his professional career, because of the teachings he received from Mahler and because it was the Austrian composer who provided him with a job as a conduct...