The team believes the geoid gained its current form some 20 million years ago.
And researchers from the Indian Institute of Science in Bangalore have illustrated one probable explanation for this mysterious gravity anomaly.It is not the first time geologists have researched the IOGL. Multiple previous studies concentrated on its current status without looking into its origins. And this new study focuses on the latter to establish how ancient influences shaped IOGL's current condition.
The findings indicated that IOGL exists due to a different mantle structure combined with another mantle anomaly, the AfricanThey discovered that certain tectonic plate portions had plunged into the mantle beneath Africa, triggering plumes under the Indian Ocean. Geologists believe that this mantle structure beneath the Indian Ocean was probably produced by the leftovers of a long-lost Tethys Ocean's seabed. About 200 million years ago, this ancient ocean divided two supercontinents, Laurasia and Gondwana.
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