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Most volcanoes either sit atop boundaries where tectonic plates meet, or above plumes where magma rises from the mantle with such heat it forces its way through the crust. However, some anomalies don t fit neatly into either category, most notably many former eruption sites across Eastern Australia. These may finally have been explained, and the same forces may be responsible for non-typical volcanoes elsewhere. It s at least 3,000 years since the Australian mainland experienced an eruption (although the memory of some of the later ones has survived). However, from Queensland to South Australia rocks reveal more than 100 million years of eruptions, some 5,000 kilometers (3,000 miles) from the plate boundary. “These volcanoes have shaped the landscapes [Australians] live on,” Dr Ben Mather of the University of Sydney told IFLScience. “They have left a lasting legacy in the rich volcanic soils that provide for much of Australia s agriculture.”

United statesNew zealandNew south walesBen matherMaria setonUniversity of sydneySouth australiaPacific plateAustralian plateScience advancesEastern chinaWestern north americaஒன்றுபட்டது மாநிலங்களில்புதியது ஜீலாந்துபுதியது தெற்கு வேல்ஸ்பென் ம்யாதர்