Tuesday , January 19 2021

News – Climate change caused the collapse of the ancient empire



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Friday, January 4, 2019, 1:08 PM – Gol-e-Zard Cave is located in the shadow of Mount Damavand, with more than 5,000 meters of landscapes in northern Iran. In this cave, stalagmites and stalagmites are growing slowly for millions of years and keep track of what happened in the climatic climate. The changes in the crystalline stalagmites in caves now account for more than 4,000 years of climatic changes associated with the collapse of the Akkadian.

Akkadia was the first empire in the world. It was established in Mesopotamia about 4,300 years ago, the Sargon rule of the Akkad, after joining some of the independent cities. He had a great impact on the Tigris and the Euphrates, now south of Iraq, Syria and Turkey. From the north to the south of the Empire, it covered regions of different climates, the most fertile land in the north, rain (an Asian "basket of pies") and southern alluvial.

The Akkad empire in the reign of Narâm-Sîn (2254-2218 BC). The damavand mountain is in blue. Zunkir / Semhir / wiki, CC BY-SA

It appears that the empire is dependent on the productivity of the northern territories and uses grains from that territory to support the army and to support the redistributive food. After a century, the Empire of Accadolum suddenly fell, following mass migration and conflicts. The voice of light is trapped in the old old-fashioned Acqad, with a mixture of water and food shortages.

… large works were not grain, no floods were flooded, irrigated orchards did not give syrup or wine, no heavy rain had to rain.

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The reason for this collapse is also discussed by historians, archaeologists, and scientists. Harvey Weiss Yale, Harley Weiss (based on old ideas by Ellsworth Huntington), is one of the main points of view, due to the drought conditions caused by drought, which damaged the northern regions of the empire's production.

Akkad Sargon – or maybe his son, Naram-Sin. Directorate General of Anti-Drugs in Iraq / wiki

When Weiss and his colleagues found evidence in the north of Syria, this wealthy territory was definitively discarded 4,200 years ago, due to lack of ceramics and other archaeological remains. Instead, earlier periods were substituted for large quantities of soil and powdered soils, suggesting the appearance of drought conditions. After that, when the Gulf of Oman and the Red Sea sailors from remote sources came to Mesopotamia, it proved an exclusive drought at that time.

Weiss's interpretation of other researchers was seen by skepticism. Some argued, for example, that archaeological and marine evidence were not accurate to show a strong correlation between the drought and social changes in Mesopotamia.

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Now, the stalagmitic Iranian data illuminates the controversy. In a study published in the PNAS journal, the paleo-climatologists at the Lake Stacy Carolin in Oxford are currently targeting high-density data breeding activity between 5,200 and 3,700 years old. Iran's cave dusts can tell you about other things about climate history.

Gol-e-Zard Cave could be hundreds of miles in the eastern part of the Akkadian Empire, but it goes down directly. As a result, 90% of the region's dust is generated in the Syria and Iraq desert.

Mount Damavand & # 39; potentially active & # 39; It is a volcano, and the highest peak in Iran. Gol-e-Zard Cave is close. Vasile Ersek, Author provided

Desert dusts have a higher concentration of magnesium, the majority of Gol-earden Stalagmites (rising from the cave floor). For this reason, the amount of magnesium of Gol-e-Zard stalagmite can be used as a shoulder indicator on the surface, with higher magnesium concentrations indicating deadlines and unplanned conditions.

Stalactites have an added advantage that can contain very detailed dates using the uranium-thorium chronology. Combining these methods provides a detailed history of our new research, identifying the existing four major droughts, now 4,510 and 4,260 years, and lasting 110 and 290 years respectively. The last event occurs in the Acadian Empire during the collapse of the Empire and offers a strong argument that partially deals with climate change.

From the north to the south, due to mass migration, populations were resistant. A 180-kilometer wall – "Amorle Repeller" – was built between the Tigris and the Euphrates in an effort to control immigration, unlike the strategies currently proposed. In the Middle East, climate change stories have been going on for millions until now.Conversation

Vasile Ersek, senior lecturer in Physical Geography, Northumbria University, Newcastle

This article is published under the Creative Commons Creative Commons License. Read the original article.

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