Principal Studies of the First Solid Material Formed in the Early Solar System: A Review

IF 0.7 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Geochemistry International Pub Date : 2023-08-15 DOI:10.1134/S0016702923080037

M. A. Ivanova

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Abstract—

This publication reviews principal recent studies of the earliest solid material in the Solar System: refractory objects, which include Ca,Al inclusions (CAIs), some chondrules, and amoeboid olivine aggregates (AOAs), with more attention paid to Ca,Al inclusions. We do not consider the ices because they do not belong to stony material, and do not consider the presolar grains that were already present in the Solar System when it was formed and were preserved in the primitive chondrites material. The review consists of an introduction, several chapters, a conclusion, a list of references, and a list of special abbreviations. Additional material is published in the Supplementary. The reference list presents the results of previous studies conducted over the past 50 years and highlights the new challenges facing researchers in the study of CAIs, then describes the most modern methods of study and approaches, the results on the chronology of the processes of the early Solar System, morphology, mineralogy, and petrography of new, little-studied representatives of CAIs from various types of chondrite material (CV3 and CH–CB), isotopic and geochemical characteristics of these objects, including REE distribution in ultrarefractory CAIs. One chapter is devoted to the search for genetic relationships between the types of CAIs and the study of the main processes that formed CAIs; this chapter also reviews results of theoretical modeling and experimental studies of the evaporation process. The conclusion summarizes principal conclusions drawn from the data and summarizes the principal results of the long-term study of refractory objects in chondrites.

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早期太阳系中形成的第一批固体物质的主要研究综述

摘要:本文综述了最近对太阳系中最早的固体物质的主要研究:难熔物体，包括Ca,Al包裹体(CAIs)，一些球粒和变形虫橄榄石聚集体(AOAs)，其中Ca,Al包裹体更受关注。我们没有考虑冰，因为它们不属于石质物质，也没有考虑太阳系形成时已经存在的太阳系前颗粒，这些颗粒被保存在原始球粒陨石物质中。这篇综述由引言、几章、结论、参考文献列表和特殊缩写列表组成。附加材料发表在补充文件中。参考文献列表介绍了过去50年来进行的先前研究的结果，并突出了研究人员在cai研究中面临的新挑战，然后描述了最现代的研究方法和方法，早期太阳系过程的年代学，形态学，矿物学和岩石学的结果，这些新的，很少研究的cai代表来自各种类型的球粒陨石材料(CV3和CH-CB)。这些岩石的同位素和地球化学特征，包括超难熔cai中的稀土元素分布。其中一章致力于寻找cai类型之间的遗传关系，并研究形成cai的主要过程;本章还回顾了蒸发过程的理论建模和实验研究结果。结论总结了从数据中得出的主要结论，总结了球粒陨石中难熔物体长期研究的主要结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geochemistry International 地学-地球化学与地球物理

CiteScore

1.60

自引率

12.50%

发文量

审稿时长

1 months

期刊介绍： Geochemistry International is a peer reviewed journal that publishes articles on cosmochemistry; geochemistry of magmatic, metamorphic, hydrothermal, and sedimentary processes; isotope geochemistry; organic geochemistry; applied geochemistry; and chemistry of the environment. Geochemistry International provides readers with a unique opportunity to refine their understanding of the geology of the vast territory of the Eurasian continent. The journal welcomes manuscripts from all countries in the English or Russian language.