The Al Haja Mountains of Oman
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Part of the Earth’s mantle beneath Oman, as researchers say, is the first known “ghost plume,” and can be said to be a column of hot rock that emanates from the lower mantle without any apparent volcanic activity on the surface.
The mantle plume is a mysterious uplift of molten rock that is believed to transmit heat from the boundaries of the core mantle to the surface of the earth from what is far from the edge of the iconic plate. In some cases, it is thought to occur below the center of the continental plate. For example, under the clefts of Yellowstone and East Africa. “But these are all if you have a surface volcano.” Simone Pilia Kingphard University, Saudi Arabia University of Petroleum and Minerals. There are no such volcanic clues in Oman.
Pilia first suspected that there was a “accidental” feather under Oman after beginning to analyze new seismic data from the region. He shows that the velocity of the waves produced by distant earthquakes in the cylindrical region below eastern Oman slows down, and is less hard than the surrounding material due to the high temperature.
Other independent seismic measurements showed important boundaries where the Earth’s deep minerals change in a way that coincides with the hot plume. These measurements suggest that the plume extends over 660 km from the surface.
The presence of plumes can also explain why the region continues to rise much after geological compression, a geological process in which the local crust is squeezed together. It also fits models of what can cause changes in Indian tectonic plate movement.
“The more we gathered evidence, the more we were convinced it was a plume,” says Pilia, who named the geological feature “Dinni plume” after her son.
“That’s plausible,” says plume actually exists. Saskia goes At Imperial College London, adding this study is “exhaustive.” However, she points out that narrow plumes are notoriously difficult to detect.
However, if it exists, the presence of a “ghost plume” contained within the mantle by the relatively thick rocky layers beneath Oman suggests that there are others, says Pilia. “We are sure the mites plume is not alone.”
If there are many other hidden plumes, the heat from the core could mean that more heat is flowing directly through the mantle and through the plume. “If we get different estimates of how much fever comes from the mantle, then there is potential significance for Earth’s evolution.”
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