The effect of melt composition in synthetic lunar silicate melts on the behavior of trace elements during lunar magma ocean fractionation

合成月球硅酸盐熔体的熔体成分对月球岩浆海洋分馏过程中微量元素行为的影响

• 批准号: 273700848
• 负责人: Professor Dr. Raúl Fonseca
• 金额: --
• 依托单位: Institut für Geologie, Mineralogie und Geophysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/273700848?language=en
• 关键词: effect; melt; composition; synthetic; lunar

The partitioning of trace elements between crystals and melts is considered to be dependent of variables such as temperature, pressure, oxygen fugacity and crystal/melt composition. Petrogenetic models for the generation of lunar mare basalts need precise knowledge of the fractionation of major and trace element between mineral phases and lunar melts during partial melting and crystallisation processes. Therefore, our proposed project aims to study the partitioning behaviour of trace elements (HFSE) between crystals (e.g. clinopyroxene, orthopyroxene, olivine, garnet, and spinel) and synthetic lunar silicate melts for a wide range of melt compositions that cover the TiO2 contents of typical lunar melts. In our experiments, we will systematically study the effects of different pressures, temperatures, and oxygen fugacities. Our new data will help understand and model the petrogenetic evolution of the Moon and thus increase our general understanding of the evolution of terrestrial planets in our solar system

微量元素在晶体和熔体之间的分配被认为与温度、压力、氧逸度和晶体/熔体组成等变量有关。月球海玄武岩形成的岩石成因模型需要精确了解在部分熔融和结晶过程中矿物相和月球熔体之间主微量元素的分异。因此，我们提出的项目旨在研究微量元素（HFSE）在晶体（如斜辉石，正辉石，橄榄石，石榴石和尖晶石）和合成月球硅酸盐熔体之间的分配行为，以广泛的熔体成分覆盖典型月球熔体的TiO2含量。在我们的实验中，我们将系统地研究不同压力、温度和氧逸度的影响。我们的新数据将有助于理解和模拟月球的岩石成因演化，从而增加我们对太阳系类地行星演化的总体理解

项目成果

Competing effects of crystal chemistry and silicate melt composition on trace element behavior in magmatic systems: insights from crystal/silicate melt partitioning of the REE, HFSE, Sn, In, Ga, Ba, Pt and Rh

晶体化学和硅酸盐熔体成分对岩浆系统中微量元素行为的竞争影响：稀土元素、HFSE、Sn、In、Ga、Ba、Pt 和 Rh 的晶体/硅酸盐熔体分配的见解

• DOI: 10.1007/s00410-017-1353-1
• 发表时间: 2017
• 期刊: Contributions to Mineralogy and Petrology
• 影响因子: 3.5
• 作者: Michely;Leitzke;Speelmanns;Fonseca;R.O.C.
• 通讯作者: R.O.C.