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An evolutionary system of mineralogy, Part IV: Planetesimal differentiation and impact mineralization (4566 to 4560 Ma)
American Mineralogist ( IF 3.1 ) Pub Date : 2021-05-01 , DOI: 10.2138/am-2021-7632
Shaunna M. Morrison 1 , Robert M. Hazen 1
Affiliation  

The fourth installment of the evolutionary system of mineralogy considers two stages of planetesimal mineralogy that occurred early in the history of the solar nebula, commencing by 4.566 Ga and lasting for at least 5 million years: (1) primary igneous minerals derived from planetesimal melting and differentiation into core, mantle, and basaltic components and (2) impact mineralization resulting in shock-induced deformation, brecciation, melting, and high-pressure phase transformations.We tabulate 90 igneous differentiated asteroidal minerals, including the earliest known occurrences of minerals with Ba, Cl, Cu, F, and V as essential elements, as well as the first appearances of numerous phosphates, quartz, zircon, and amphibole group minerals. We also record 40 minerals formed through high-pressure impact alteration, commencing with the period of asteroid accretion and differentiation. These stages of mineral evolution thus mark the first time that high pressures, both static and dynamic, played a significant role in mineral paragenesis.

中文翻译:

矿物学的演化系统,第四部分:行星的分化和撞击矿化作用(4566至4560 Ma)

矿物学演化系统的第四部分考虑了在太阳星云历史的早期发生的两个阶段的行星状矿物学,始于4.566 Ga,持续了至少500万年:(1)来自行星状星体熔化和变质的主要火成岩矿物。区分为核心,地幔和玄武质成分;(2)冲击矿化作用导致震动诱发的形变,成矿,融化和高压相变。我们将90种火成的小行星矿物制成表格,包括最早发现的含Ba矿物,Cl,Cu,F和V是必不可少的元素,以及许多磷酸盐,石英,锆石和闪石族矿物的首次出现。我们还记录了通过高压冲击蚀变形成的40种矿物,从小行星的增生和分化时期开始。因此,矿物演化的这些阶段标志着高压(静态和动态高压)首次在矿物共生中发挥了重要作用。
更新日期:2021-05-03
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