翻訳と辞書 Words near each other ・ Thermal equator ・ Thermal equilibrium ・ Thermal expansion ・ Thermal expansion coefficients of the elements (data page) ・ Thermal expansion valve ・ Thermal fade ・ Thermal fluctuations ・ Thermal fluids ・ Thermal fracturing in glass ・ Thermal grease ・ Thermal grill illusion ・ Thermal Hall effect ・ Thermal Head ・ Thermal history coating ・ Thermal history modelling ・ Thermal history of the Earth ・ Thermal hydraulics ・ Thermal hydrolysis ・ Thermal imaging camera (firefighting) ・ Thermal immersion circulator ・ Thermal infrared spectroscopy ・ Thermal insulation ・ Thermal integrity profiling ・ Thermal ionization ・ Thermal ionization mass spectrometry ・ Thermal keratosis ・ Thermal lag ・ Thermal lance ・ Thermal laser stimulation ・ Thermal loop Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Thermal history of the Earth ： ウィキペディア英語版 Thermal history of the Earth The thermal history of the Earth is the study of the cooling history of Earth's interior. It is a sub-field of geophysics. Thermal histories are also computed for the internal cooling of other planetary and stellar bodies. The study of the thermal evolution of Earth's interior is uncertain and controversial in all aspects, from the interpretation of petrologic observations used to infer the temperature of the interior, to the fluid dynamics responsible for heat loss, to material properties that determine the efficiency of heat transport. ==Overview== Observations that can be used to infer the temperature of Earth's interior range from the oldest rocks on Earth to modern seismic images of the inner core size. Ancient volcanic rocks can be associated with a depth and temperature of melting through their geochemical composition. Using this technique and some geological inferences about the conditions under which the rock is preserved, the temperature of the mantle can be inferred. The mantle itself is fully convective, so that the temperature in the mantle is basically constant with depth outside the top and bottom thermal boundary layers. This is not quite true because the temperature in any convective body under pressure must increase along an adiabat, but the adiabatic temperature gradient is usually much smaller than the temperature jumps at the boundaries. Therefore, the mantle is usually associate with a single or potential temperature that refers to the mid-mantle temperature extrapolated along the adiabat to the surface. The potential temperature of the mantle is estimated to be about 1350 C today. There is an analogous potential temperature of the core but since there are no samples from the core its present-day temperature relies on extrapolating the temperature along an adiabat from the inner core boundary, where the iron solidus is somewhat constrained. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Thermal history of the Earth」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.