Earth's crust is 'dripping' beneath Central Anatolian Plateau of Türkiye. Here's what it means

The Earth's crust is continually being reshaped below the Konya Basin in the Central Anatolian Plateau of Türkiye over millions of years, as per the analysis of recent satellite data carried out by Earth scientists at the University of Toronto.

The researchers said that experimental simulations, in combination with geophysical, geodetic and geological data, explained that the basis has been going through the enigmatic sinking inside the rising plateau interior.

This observation further hinted at the existence of a new class of plate tectonics which has implications for other planets that do not contain Earth-like plates, like Mars and Venus.

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In the study, which waspublishedinNature Communications, it was explained the region has been facing sinking because of the multi-stage lithospheric dripping which is a phenomenon for the rocky material's instability that creates the crust and upper mantle of Earth.

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Major landforms like basins and mountains are created at the surface after the dense rock fragments get detached from the surface and sink into the more fluid layer of the mantle of the planet.

"Looking at thesatellite data, we observed a circular feature at the Konya Basin where the crust is subsiding or the basin is deepening," said lead author Julia Andersen, who is a PhD candidate at University of Toronto's Department of Earth Sciences at the Faculty of Arts & Science, in the study.

"This prompted us to look at other geophysical data beneath the surface where we saw a seismic anomaly in theupper mantleand a thickened crust, telling us there is high-density material there and indicating a likely mantle lithospheric drip," he added.

Scientists explain what's happening beneath Earth's mantle

Speaking about the Earth's mantle, co-author of the study and a professor in the Department of Earth Sciences Russell Pysklywec said, "As the lithosphere thickened and dripped below the region, it formed a basin at the surface that later sprang up when the weight below broke off and sank into the deeper depths of the mantle."

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"We now see the process is not a one-time tectonic event and that the initial drip seems to have spawned subsequent daughter events elsewhere in the region, resulting in the curious rapid subsidence of the Konya Basin within the continuously rising plateau of Türkiye," he added.

Andersen further stated that the new discovery has hinted at the connection between basin formation events and plateau uplift. "Essentially, subsidence is occurring alongside the ongoing uplifting of the plateau," he said.

(With inputs from agencies)