Model of the interior of the Earth. Photograph: NASA / JPL / Université Paris Diderot and Institut de Physique du Globe de Paris
Hundreds of miles under our feet there is an underground mountain range with peaks that can compete with the Himalayas, a new study said.
Scientists have glimpsed the unsightly structures in the data on seismic waves captured during the Bolivian earthquake in 1994, according to a study published on Thursday .
The Earth's mantle is a thick strip of silicate rock that extends from the earth's crust to the core, which is 84% of the volume of our planet. At 41
Scientists can understand that the scale becomes more rough and dense in this place, but it is difficult to read topography. Detailed border information can help solve many riddles about the mantle, such as how much the upper and lower layers blend, so scientists want to look at it more closely.
seismic waves, which are waves of energy that travel through the planet during major disturbances such as earthquakes or asteroids. When waves correspond to different textures, minerals and structures, they are similarly reflected by light waves reflecting objects. This provides a rough seismic picture of the interior of the Earth. "We need major earthquakes to allow seismic waves to travel through the mantle and the core, bounce off the 660-mile break and travel through the Earth to be discovered at the top of the earth's crust," Jessica Irving, a geophysicist from Princeton University and author of the study, said on the motherboard in an email
As the second largest earthquake in a record – 8.2 on the Richter scale – the Bolivian event of 1994.
The team attracted the Princeton supercomputer printer to analyze and
While the statistical model of the study can not determine the exact heights, there is a "stronger topography than the Rocky Mountains or Appalachians" at the border, according to the lead author Wenbo Wu
"I can not give you the calculated number," Irving said in terms of the height of the range. " But the mountains at 660 kilometers border can be larger than Everest. "
Read more: There is a" Underground Galapagos " Deep in the earth
The reliability of the range can be partly caused by the accumulation of old pieces of sea rain that sucks in the mantle and then descends to the border. There may be ancient relics from the earliest days of the Earth, accumulated as a kernel there. As seismology and supercomputer techniques continue to develop elop, scientists hope to learn more about the mantle mountain.
"I think future research will help us learn more about these topographic mountains and how they spread around the planet – we already see that some parts of the 660-kilometer border are much smoother than others," Irving said. The study not only informs about the ongoing debates on Earth's evolution but also sheds light on the processes and structures that other planets can shape.
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