We Are Now Living In Meghalayan Age, Experts Say

Posted: Jul 19 2018, 6:55pm CDT | by , Updated: Jul 19 2018, 11:42pm CDT, in News | Latest Science News

 
We are Now Living in Meghalayan Age, Experts Say
Credit: IUGS

The last 4,200 years of Earth's history have been classified as an entirely new phase

Geologists have defined a new phase in Earth’s history – and we are part of it.

The new distinct phase is named the Meghalayan Age and it began when societies around the world were struck by a mega drought 4,200 years ago. This makes it the most recent unit of the Geologic Time Scale.

The International Commission on Stratigraphy, which is responsible for standardizing the Geologic Time Scale, approves the beginning of every age based on noticeable changes. The commission has released International Chronostratigraphic Chart to show all the divisions in the Earth’s 4.6 billion-year history. Based on the chart, we are currently living in Holocene Epoch, which represents the time since the end of the last Ice Age about 11,700 years ago.

The Holocene Epoch is further divided into three ages and one of them is the Meghalayan Age, which is also known as “upper Holocene.” The other two ages are the Greenlandian and the Northgrippian. The Greenlandian or "lower Holocene" began 11,700 years ago. It is the oldest age of Holocene. The Northgrippian, also known as the "middle Holocene" began 8,300 years ago after an abrupt cooling event.

The most recent phase, The Meghalayan Age, is based on the evidence of the climatic event found in sedimentary records. The climatic event or drought that began after the end of the last Ice Age severely impacted agriculture-based societies and resulted in the collapse of civilizations in Egypt, Greece, Syria, Palestine, Mesopotamia, the Indus Valley, and the Yangtze River Valley.

Dr. Stanley Finney, Professor of Geological Sciences at Long Beach State University and Secretary General of the International Union of Geological Sciences (IUGS) says. “The Meghalayan Age is unique among the many intervals of the Geologic Time Scale in that its beginning coincides with a global cultural event produced by a global climatic event.”

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<a href="/latest_stories/all/all/47" rel="author">Hira Bashir</a>
The latest discoveries in science are the passion of Hira Bashir (). With years of experience, she is able to spot the most interesting new achievements of scientists around the world and cover them in easy to understand reporting.

 

 

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