Earth's deep interior mystery

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Indian Ocean Geoid Low

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geoid anomalies

Brighter Side News

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Science

Mysterious 'Gravity Hole' discovered at the center of the Indian Ocean

Summary

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85% Informative

The Indian Ocean Geoid Low (IOGL) features an enormous dip in the ocean’s surface, dropping 106 meters lower than surrounding areas.

The researchers traced the anomaly to mantle convection, the slow, churning movement of material inside the Earth .

They found hot material rising from the African large low-shear-velocity province ( LLSVP ) or the African superplume, near the IOGL, which gets deflected eastward and terminates beneath the anomaly.

The geoid low formed around 20 million years ago , according to the team's calculation.

It’s hard to say whether it will ever disappear or shift away, says Prof. Ghosh .

The study is a significant step in understanding the IOGL, providing a credible explanation for one of Earth 's most intriguing gravitational anomalies.

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