Stefan Höhn、Hartwig E.Frimmel和Westley Price关于“南非Gamsberg锌矿床的同变质硫化作用”的讨论

IF 1.4 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Mineralogy and Petrology Pub Date : 2023-04-21 DOI:10.1007/s00710-023-00821-6

Tarryn K. Cawood, Abraham Rozendaal, Paul G. Spry

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引用次数: 0

摘要

Höhn 等人（2021 年）提出，南非巨大的 Gamsberg Zn 矿床最初是在中新生代形成的沉积喷出型（SEDEX）矿床，随后在近地表被氧化。据推测，氧化矿石在上闪长岩面变质期间和之后被富含硫的变质流体硫化。由于种种原因，我们认为这种模式是站不住脚的，并建议 Gamsberg 矿床和 Aggeneys-Gamsberg 地区的其他矿床（Swartberg、Broken Hill-Deeps、Big Syncline）是变质碎屑岩 SEDEX 矿床，而不是由同步变质硫化过程形成的。

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Discussion on “Syn-metamorphic sulfidation of the Gamsberg zinc deposit, South Africa” by Stefan Höhn, Hartwig E. Frimmel, and Westley Price

Höhn et al. (2021) proposed that the giant Gamsberg Zn deposit, South Africa, initially formed as a sedimentary exhalative (SEDEX) deposit during the Mesoproterozoic and was subsequently oxidized near surface. The oxidized ore was then supposedly sulfidized by sulfur-rich metamorphic fluids during and after upper amphibolite facies metamorphism. We view this model as untenable for various reasons and suggest that the Gamsberg deposit and others in the Aggeneys-Gamsberg district (Swartberg, Broken Hill-Deeps, Big Syncline) are metamorphosed clastic SEDEX deposits rather than having formed by synmetamorphic sulfidation processes.

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来源期刊

Mineralogy and Petrology 地学-地球化学与地球物理

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

1 months

期刊介绍： Mineralogy and Petrology welcomes manuscripts from the classical fields of mineralogy, igneous and metamorphic petrology, geochemistry, crystallography, as well as their applications in academic experimentation and research, materials science and engineering, for technology, industry, environment, or society. The journal strongly promotes cross-fertilization among Earth-scientific and applied materials-oriented disciplines. Purely descriptive manuscripts on regional topics will not be considered. Mineralogy and Petrology was founded in 1872 by Gustav Tschermak as "Mineralogische und Petrographische Mittheilungen". It is one of Europe''s oldest geoscience journals. Former editors include outstanding names such as Gustav Tschermak, Friedrich Becke, Felix Machatschki, Josef Zemann, and Eugen F. Stumpfl.