Schematic illustration of the oceanic plate beneath the Ontong Java Plateau inferred from seismic wave analyses. High-frequency seismic observations indicate that the plate has a composite structure ...

The Ontong Java Plateau in the western Pacific Ocean is the largest oceanic plateau on Earth, and its formation mechanism has ...

A fiery mystery has puzzled geologists for decades: where did the lava fueling one of Earth's largest volcanic events come from? A new study may finally have the answer. Scientists have long believed ...

Geologists led by the University of Maryland and the University of Hawaiʻi finally connected the dots between one of the largest volcanic eruptions in Earth's history and its source deep beneath the ...

Co-lead scientists Jasper Konter and Matt Jackson look for a suitable sampling site using data of seamount collected with the research ship's sonar system. Geologists led by the University of Maryland ...

Scientists long wondered whether there were places on Earth where extremely hot material from the core of the Earth moves up through the mantle, and if these plumes were responsible for some volcanic ...

When plumes of magma well up through Earth's lithosphere, they create volcanoes, islands, seamounts, and other features on the surface. Telltale hot spot tracks form as tectonic plates move over these ...

Volcanic processes in oceanic plateaus are dominated by high-volume, often short-lived eruptions linked to mantle plume activity and interactions with mid-ocean ridges. Magma ascent can occur through ...

The dynamics of Earth’s mantle underpin the genesis of seamounts across the Pacific basin. Buoyant upwellings, known as mantle plumes, ascend from deep within the mantle and impinge upon the base of ...