Scientists reveal how single hotspot created Lord Howe Island volcanic chains
Scientists published new research suggesting Lord Howe Island and a nearby underwater volcanic chain formed from a single deep Earth hotspot millions of years ago. The study proposes that mantle plumes, upwellings of superheated rock, can split into two branches rather than rising straight, explaining why the Lord Howe and Tasmantid seamount chains coexist so closely.
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Published 17 Oct 2026, 20:06 UTC · Updated 17 Oct 2026, 20:10 UTC
Summary by OZbrief Editorial. Original report: ABC News – Australia. Editorial policy · Corrections
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