The Moon

作     者：ross taylor 

作者机构：australian national universityCanberraAustralia 

出 版 物：《Acta Geochimica》 (地球化学学报（英文）)

年 卷 期：2016年第35卷第1期

页      面：1-13页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0704[理学-天文学] 

主　　题：地球物理数据 地球化学证据 同位素组成 挥发性元素 月球起源 月亮 耐火材料 内部压力 

摘      要：Recent geochemical and geophysical data from the Moon enable a revision of earlier interpretations regarding lunar origin, structure and bulk composition. Earth and Moon show many similarities among their isotopic compositions, but they have evolved in totally dissimilar ways, probably related to the deficiency of water and volatile elements in the Moon as well as the vast differences in size and internal pressure. Some global geochemical differences from the Earth such as volatile depletion based on K/U ratios have been established. However, all current lunar samples come from differentiated regions, making the establishment of a bulk composition more reliant on bulk geophysical properties or isotopic similarities; it remains unclear how the latter arose or relate to whole Moon composition. The lack of fractionation effects among the refractory and super-refractory elements indicates that the proto-lunar material seems unlikely to have been vaporized while the presence of volatile elements may place lower limits on proto-lunar temperatures. The apparent lack of geochemical evidence of an impacting body enables other possible impactors, such as comets, to be considered. Although the origin of the Moon remains currently unknown, it is generally believed that the Moon originated as the result of a giant impact on the Earth.