Taking into account recent results on the thermodynamical Gr眉neisen gamma, the adiabatic temperature distribution through the outer core is also given. No overlapping of the two curves is found which leaves open the possibility of explaining the thermodynamics of the core and the origin of the ...
The basic structure of Earth—crust, mantle, and core—appears to be replicated on the other terrestrial planets, though with substantial variations in the relative size of each region.The geomagnetic field and magnetosphere Helical fluid motions in Earth’s electrically conducting liquid outer core ...
earth at small depth, and limits imposed on the possible values bv melting temperatures at large depth, the actual temperature in the earth is represented approximately by a quartic polynomial in the depth; the limit of error at large depth if the inner core is solid is estimated as 卤25%....
In this Review, we discuss the properties and phase relations of iron alloys under high-pressure and high-temperature conditions relevant to the Earth’s core. We synthesize mineral physics data with cosmochemical and geochemical estimates to give the likely range of compositions for the outer (...
The mantle is between the crust and the outer core.It is mostly solid rock.Almost three quarters of Earth's surface is covers in water.Without water,there would be no life on earth.Earth is protected by a layer of gases called the atmosphere.Earth's temperature,water,and atmosphere make ...
How dense is the Earth's inner core? Where is the Earth's outer core located? What percent of the Earth is the outer core? How dense is the Earth's outer core? What is the temperature range on the planet Mars? Surrounding the inner core of the Earth is What is the temperature range...
Earth's lower mantle and outer coreGrüneisen parameterThermal grüneisen parameterBy considering high-temperature (classical) thermal oscillations of atoms in certain simple crystal structures with purely central interatomic forces, the treatment of anharmonic oscillations is generalised to random three-...
A. It is solid B. It is mainly made of iron and nickel in a solid state C. It is liquid and mainly composed of iron and nickel D. It has a very low temperature 相关知识点: 试题来源: 解析 C。解析:外核是液态的,主要由铁和镍组成。选项A错误,外核是液态不是固态。选项B错误,外核是...
The outer core is a liquid because the temperatures there are adequate to melt the iron-nickel alloy. However, the inner core is a solid even though its temperature is higher than the outer core. Here, tremendous pressure, produced by the weight of the overlying rocks, is strong enough to...
Abstract THE temperature distribution in the Earth's core places important constraints on the Earth's internal heat budget and on models of the geodynamo. The solid inner core crystallizes from a liquid outer core, consisting mainly of iron alloyed with a lighter element, at a depth of about ...