thus requiring an entirely separate formation pathway. These planets must therefore have formed further out in the system and migrated inwards, e.g. via Type I disk migration or dynamical interaction with other planets
However, the density deficit in the Earth’s inner core cannot be explained if no other light elements are present in the inner core. High-pressure and temperature-phase diagram of Fe–C alloy has also been used to constrain the carbon content of the Earth’s core. Previous phase relation ...
We measured the spin state of iron in ferropericlase (Mg[sub0.83]Fe[sub0.17])O at high pressure and found a high-spin to low-spin transition occurring in the 60- to 70-gigapascal pressure range, corresponding to depths of 2000 kilometers in Earth's lower mantle. This transition implies...
It takes several hours for 30 tons of air to be transported out. Only about two grams remain inside the chamber. The air pressure is 0.000000000013 bar or 130 micropascal. This corresponds to one billionth of the atmospheric pressure on Earth. ...
The permanent magnets, E, are mounted on the exterior of the high-pressure cell and are not in contact with the fluid sample. This arrangement has been made possible because of the availability of rare-earth magnets in large sizes, and this choice allows the inside diameter of the pressure ...
On Tuesday, just days after Boeing announced plans to cut 10% of its workforce due to intensifying financial pressure, such as dwindling cash reserves and mounting risk of a credit downgrade, as well as prolonged strike, the beleaguered planemaker filed a $25 billion shelf registration. “...
s external and internal reservoirs. Sulfur speciation and magma fugacity are dynamic parameters that can change throughout a magma’s journey from formation to crystallization. While our study considered factors like pressure and temperature, further analyses are needed to trace the complete ‘fugacity ...
Twitter has long been under pressure to prevent misinformation from spreading on its platform. But it wasn’t until this year that the company took more aggressive action. Twitter fact-checked tweets from former president Donald Trump and other politicians about Covid-19, mail-in voting and the...
We are pleased to share with you the 50 most readNature CommunicationsEarth and planetary sciences articles* published in 2018. Featuring authors from around the world, these papers highlight valuable research from an international community.
R. Nucleation of slip-weakening rupture instability in landslides by localized increase of pore pressure. J. Geophys. Res. Solid. Earth 117, B03104 (2012). Google Scholar Schaeffer, D. G. & Iverson, R. M. Steady and intermittent slipping in a model of landslide motion regulated by pore...