The New Phase of the History of the Earth 'Northeast Today

NET Bureau, Kingson Chingakham

The International Union of Geological Sciences (IUGS) tweeted the latest changes on the Geological Time Scale (also called Chronostratigraphic International Chart) a week that includes "l & rsquo; Meghalayan era "as the last phase of the Earth's history

Considering the past 4,200 years as a distinct phase of the geology of our planet, geologists have defined the new geological time scale – "The Meghalayan era" as the beginning of a period marked by a mega drought that ended many civilizations around the world, including our own Indus civilization.

We are currently living in the Holocene era marked by various dramatic events that occurred about 11,700 years ago. During the Holocene period, there are two other sub-divisions called Northgrippian and Greelandian, which are respectively the middle and oldest phases of the Holocene.

In ratifying the new geological time scale, Professor Stanley Finney, Secretary General of UISG, said: "The Meghalayan era is unique among the many geological time intervals in that its early coincides with a global cultural event produced by a global climate event. "

Why Meghalayan?

An important criterion that must be passed in order to obtain a classification is that" a geological time slice must generally reflect something whose effects have an overall scope, and be associated with a type of rock or sediment that is clear and unambiguous. Meghalayan age is proven to exist in all seven continents.

Therefore, rock records play a pivotal role in the classification of the geological time scale. which led to the extinction of the dinosaurs about 66 million years ago left traces of the iridium element dispersed as sediments throughout the planet. This was also considered as the period As reported by BBC News, Professor Mike Walker, who headed the international team of Holocene scientists who developed the division proposal, said: "The timestamp of the Age Meghalayan is an isotopic change found in a single stalagmite growing from the floor of the Mawmluh cave in Meghalaya, India.The change in isotopes of the oxygen atom indicates that the region has known a 20 to 30 percent decrease in monsoon rainfall during the mega-drought that launched the new geological era. "