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Harbingers of changes on Earth: what scientists found in southern Dagestan – Rodina

Date: July 13, 2024 Time: 20:07:19

Russian researchers discovered unique Ice Age rocks as part of a large expedition. The so-called loess can not only inform about the climate of previous times, but also help predict changes in the future.

Telegram channel of the Institute of Geography RAS / Institute of Physics and Biochemistry of the Russian Academy of Sciences

The thickness of Dagestan loess rocks reaches tens of meters and covers an area of ​​several thousand hectares.

Experts unexpectedly discovered special natural deposits in the southern part of the republic. Sources on this topic are very scarce.

Pavel Panin, senior researcher at the Institute of Geography of the Russian Academy of Sciences, observed a surprising moment. Previously, loess was “occasionally noted” in this region. They were discussed in the context of their use in agriculture or as a resource that aided in the production of building materials.

“Employees of the Institute of Geology of the Republic of Dagestan conducted only small studies on this topic, so the loess of southern Dagestan is a unique and practically unstudied rock,” the scientist noted.

Study of loess deposits in Dagestan. Photo: Telegram channel of the RAS Institute of Geography / Institute of Physics and Biochemistry of the Russian Academy of Sciences

Meanwhile, special soil profiles can be traced in hitherto unexplored strata. They were formed in the time of the mammoths. People were just beginning to populate Eurasia.

The rocks found presumably date from the Pleistocene, also called the Quaternary or Ice Age. It began more than 2.5 million years ago and ended more than 10 thousand years ago.

It is also valuable that loess soil series are a “natural archive” in which global climate changes on Earth during the Quaternary are “recorded.”

It was formed in the specific cold conditions of the ice ages. Periodically, this process was interrupted as a warmer interglacial period began. All this was reflected in one way or another in the structure of the sediments, creating a specific “pattern.”

Precisely taking into account these features, scientists recreate the landscape and climatic conditions of the distant past, and also make forecasts for the future.

Pavel Panin noted that the thickness of Dagestan loess rocks reaches tens of meters and covers an area of ​​several thousand hectares.

After making the discovery, the expedition members studied a series of areas where paleosol profiles were visible on the vertical walls of the loess outcrops.

The most informative series, which will allow detailed analysis of the sediments, turned out to be the one located near the village of Kurkent. This would not have been possible without the help of local residents who provided important advice.

The expedition was attended by employees of the Institute of Geography of the Russian Academy of Sciences, the Pushchino Scientific Center, the Institute of Geology of the Republic of Dagestan and the Federal Center for Geological Research named after him. FF Erisman with the support of the Russian Scientific Foundation.

The collected samples must now be studied in laboratory conditions.

* This website provides news content gathered from various internet sources. It is crucial to understand that we are not responsible for the accuracy, completeness, or reliability of the information presented Read More

Hansen Taylor
Hansen Taylor
Hansen Taylor is a full-time editor for ePrimefeed covering sports and movie news.
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