Earth’s mantle may have hidden plumes venting heat from its core

Part of the mantle of the Earth under Oman seems unusual, the first known “ghost feather ği that researchers say – a hot rock column coming out of the lower mantle without significant volcanic activity on the surface.

Mantle feathers, from the core-giz border to the surface of the Earth, the mysterious melted rock believed to transmit heat away from the edges of the tectonic plates. There is an example of a dozen that is thought to occur in the middle of the continental plates – under the Yellowstone and East African crack. “But all of them are situations where you have surface volcanism,” he says Simone Pilia Petroleum and minerals in Saudi Arabia are at King Fahd University. Oman has no such volcanic tips.

Pilia first came to suspect that Oman was a “random ör feather after starting analyzing new seismic data from the region. He observed the speed of waves produced by distant earthquakes, slowing down in a cylindrical area under the East Oman, which showed that the rocks were less floors than the surrounding material, depending on high temperatures.

Other independent seismic measurements showed the basic limits in which minerals in the world consistently change their phases with a warm feather. These measurements suggest that the feather extends 660 kilometers below the surface.

The presence of a feather can explain why the region continues to rise at height after tectonic compression, a geological process where the world’s shell is bored. It also fits the models that can cause a change in the movement of the Indian tectonic plate.

“The more evidence we collect, the more we’re a feather,” says Pilia, who calls her geological feature after her son.

“Reasonable”, he really has a feather there, he says SASKIA is going Adding work on Imperial College London is “comprehensive”. However, he points out that it is difficult to detect narrow hairs.

However, if any, he says that if there is a relatively thick rocky layer under Oman in the mantle, he will argue that the existence of a “ghost feather” is others. “We are convinced that Dani Plume was not alone.”

If there are many other hidden feathers, more heat than the nucleus may mean that it flows directly through mantle through hair rather than a slower convection. “If we get a different guess about how much heat comes out of mantle, potentially has effects on the evolution of the world.”