Calcium isotope cosmochemistry
Calcium isotope cosmochemistry
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DOI：
10.1016/j.chemgeo.2021.120396
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发表时间：
2021-06
期刊：
影响因子：
3.9
通讯作者：
M. Valdes;K. Bermingham;Shichun Huang;J. Simon
中科院分区：
文献类型：
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作者：
M. Valdes;K. Bermingham;Shichun Huang;J. Simon
在过去的十年里，分析能力取得了重大进展，钙同位素的使用也显著增加，以促进我们对太阳系和地球演化的理解。在这里，质量依赖性和非质量依赖性的钙同位素的变化在散装陨石和球粒陨石成分进行了讨论。本文还探讨了钙同位素如何记录星云的过程，包括蒸发/冷凝和混合的化学和同位素不同的水库在原行星盘。非质量依赖的钙同位素的变化跟踪的性质和时间的恒星质量贡献的父母分子云的适用性进行了讨论。这包括钙同位素数据提供的行星积木的性质和之间的关系的约束。这方面的贡献还探讨了母体为基础的和陆地的二次过程的影响，和变量的同位素异构富钙成分的采样，散装陨石成分。使用这里审查的数据，这方面的贡献试图调和的化学和同位素钙数据从散装陨石和陨石成分，以解决行星科学的一个主要目标，发展的太阳星云的化学和同位素演化到我们的行星系统的综合模型。
The past decade has seen significant advancements in analytical capabilities and with it a marked increase in the use of Ca isotopes to advance our understanding of the Solar System's and Earth's evolution. Here, mass-dependent and non-mass-dependent Ca isotopic variations in bulk meteorites and chondrite components are discussed. This contribution also examines how Ca isotopes record nebular processes, including evaporation/condensation and mixing of chemically and isotopically distinct reservoirs in the protoplanetary disk. The applicability of non-mass-dependent Ca isotopic variations to tracing the nature and timing of stellar mass contributions to the parental molecular cloud is discussed. This includes the constraints Ca isotopic data provide on the nature of and the relationships between planetary building blocks. This contribution also explores the effects of parent body-based and terrestrial secondary processes, and variable sampling of isotopically heterogeneous Ca-rich components, on bulk meteorite compositions. Using the data reviewed here, this contribution attempts to reconcile the chemical and isotopic Ca data from bulk meteorites and meteorite components to address a major goal in planetary science, the development of a comprehensive model of the chemical and isotopic evolution of the Solar nebula into our planetary system.