Researchers led by Mark Abbott of the University of Pittsburgh have extracted from the bottom of the
Junin is the largest lake in Peru.It is located at an altitude of over 4000 m in the Andes in the upper part of the Amazon basin. This lake meets all the necessary conditions to capture the change of ice ages, the authors of the work note. It is close enough to the glaciers to collect sediment and runoff from the mountains, but far enough away not to freeze as the glaciers expand. Therefore, sedimentary deposits are ordered in the process of formation.
The researchers studied thin sections of the glacialcore to restore climate change. The composition of the layer shows how it was formed, the scientists explain. Glaciers rubbing against rocks, or a drying lake that forms a wetland, each process leaves its distinct mark.
Comparison of the lake's long-term climate changeJunin with data collected in other parts of the world revealed patterns. For example, it can provide an answer to the question of how global warming affects the climate in the tropics.
As the Arctic warmed, the southern tropics dried up dramatically. You're moving heat to the southern hemisphere and the monsoon is waning, so you're getting very dry conditions.
Mark Abbott, University of Pittsburgh professor and research leader
Researchers note that global climatevery interconnected. By studying data from Lake Junin and observations in the Arctic, Antarctica and Greenland, scientists hope to identify more patterns influencing climate and weather.
Cover image: Drilling platform on Lake Junin. Photo: Mark Abbott, University of Pittsburgh
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