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Geologists have divided the 4.6 billion years of earth's existence into time slices, where each slice corresponds to significant events, such as the collapse of continents, dramatic climate changes and even the emergence of particular types of animals.
Officials said that the famous diagram, Chronostratigraphic International Chart, which represents the calendar of Earth's history will be updated with the new discovery made.
We are currently living in an age that is known as the Holocene A time that reflects all the events of the last 11,700 years, that is, when a dramatic warming drove us away of the last ice age, reported Wednesday the BBC
The International Commission on Stratigraphy (ICS), an official guardian of geological time. , said that the Holocene itself can be subdivided. He proposed three steps to designate the upper, middle and lower phases of the time.
The last 4 200 years have been classified as being a distinct age in the history of the Earth. mega-drought whose effects lasted for centuries and which crushed civilizations around the world – Egypt, Greece, Syria, Palestine, Mesopotamia, Indus Valley and Yangtze River Valley
The beginning of the 39th Meghalayan era coincides with a world cultural event. Stanley Finney, professor at the Long Beach State University and Secretary General of the International Union of Geological Sciences (IUGS), supported the proposal of the ICS
Professor Mike Walker from the University of Wales, UK. , who led the international team of Holocene scientists "The isotopic shift reflects a 20 to 30 percent decrease in monsoon rains."
Mike was quoted by BBC News as "The two most important changes occur at about 4,300 and about 4,100 years before the present., So the midpoint between the two would be 4,200 years before the present, and that is 39, is the age that we attribute to the Meghalayan gold point. "
The stalagmite layers on cave floors in Meghalaya, India are the best example of the tip for the Meghalayan. According to ICS, it was probably triggered by changes in ocean and atmospheric circulation
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