Sentences with phrase «partially molten»
Mariner 10's measurements of the planet reveals a dipolar magnetic field possibly produced by a partially molten core.
http://solarviews.com/
As the forces fight against each other, the pressure will open up paths where hot, ductile, and partially molten rock underneath can find its way into the upper crust.
More discussion about the magnetic field and Mercury's hypothesized molten or partially molten core can be found below.
Fiquet cautions against using the term «magma ocean» to describe the potentially melted layer deep inside Earth: «The basic thing to remember is that the mantle is solid rock, but it might also be partially molten at the base.»
New observations provide further evidence that Mercury's core is partially molten (more).
On May 3, 2007, team of astronomers (including Jean - Luc Margot; Stan Peale; Igor V. Holin; Raymond F. Jurgens; and Martin A. Slade) announced new evidence that Mercury has a partially molten core using new observations of fluctuations in Mercury's spin obtained with radar signals bounced off the planet from Earth (with the 305 - meter Arecibo, the 34 - meter Goldstone, and the 100 - meter Robert C. Byrd Green Bank radio telescopes).
Results show that planets b and c likely have partially molten rock mantles.
For example, that near UV CD that showed a hydrophobic core, was weak in intensity, which is consistent with at least «partially molten character.»
Beneath the rocky bottom is a reservoir of partially molten rock, or magma.
The Moon, thought to have been created by the collision of a Mars - sized body with the Earth, began as a molten or partially molten body that separated as it cooled into a crust, mantle and core.
Earth's crust in that part of the world is slowly moving northwest, he explained, and 40 million years ago, parts of Greenland passed over an especially hot column of partially molten rock that now lies beneath Iceland.
«These small regions have been assumed to be a partially molten version of the rock that surrounds them,» says Mingming Li, lead author of the study, which was published August 2, 2017, in the journal Nature Communications.
Geoscientists have thought the zones are partially molten, yet the pockets are puzzling because many are observed in cooler regions of the deep mantle.
Based on their results, there appears to be a massive circular blob of partially molten rock, approximately 800 kilometers in diameter and 15 kilometers in height, along the core - mantle boundary, feeding the plume directly below the basaltic island.
The Earth's crust in that part of the world is slowly moving northwest, he explained, and 40 million years ago, parts of Greenland passed over an especially hot column of partially molten rock that now lies beneath Iceland.
One way to explain that speed drop would be if they were partially molten.
Garnero adds that, as is the case with many phenomena, it doesn't have to be either - or: The ULVZs could be both partially molten and chemically distinct.
She says her team's results favor the partially molten scenario, since the other option, a chemically distinct rock, would likely have a more irregular shape and wouldn't necessarily wind up sitting directly underneath a plume.
The last boundary is considered to correspond to the one in the mantle separating the solid area and the partially molten area mentioned above.
The team thinks much of the ocean layer is likely a partially molten slurry or matrix with a mix of molten and solid rock.
They rise up to the lithosphere, bringing with them hot partially molten mantle material that causes the lithosphere to weaken and deform.
«We think this is a dome - shaped pocket of partially molten rock surrounded by normal mantle,» Helmberger says.
The pressure difference could be caused by hot, partially molten rock piled up beneath mid-ocean ridges or beneath the cooling plates diving into the earth at subduction zones, the authors write.
Not exact matches
«They are either hot, partially - molten portions of otherwise normal mantle, or they are something else entirely, some other composition.»
This artists impression of super-Earth 55 Cancri e shows a hot partially - molten surface of the planet before and afte... view image