New genetic type of wakefieldite-(Ce) from hydrothermal hematite veins of the Mys Korabl’ amethyst deposit, Kola Peninsula

IF 1.9 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Mineralogy and Petrology Pub Date : 2025-10-18 DOI:10.1007/s00710-025-00952-y

Dmitry R. Zozulya, Anna N. Solovjova, Yevgeny E. Savchenko, Elena S. Borisenko

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Abstract

In this work, we describe a new genetic occurrence of wakefieldite-(Ce) in association with monazite-(Ce) and rhabdophane-(Ce) from K-feldspar clusters in hydrothermal hematite veins of the Mys Korabl’ amethyst deposit, Kola Peninsula. According to the chemical composition, the studied wakefieldite-(Ce) has an average empirical chemical formula of (Ce_0.43Nd_0.19La_0.16Ca_0.10Pr_0.05Y_0.04Sm_0.03)_1.00(V_0.89Fe_0.05P_0.04)_0.98O₄. The relationships between wakefieldite-(Ce) and REE-phosphates indicate the following sequence of mineral formation: monazite-(Ce) → wakefieldite-(Ce) → rhabdophane-(Ce). The mineral paragenesis [hydrothermal hematite, K-feldspar, rare earth element (REE) phosphates] and chemical features of the minerals in the association (REE distribution, elevated content of SO₃ and Cl) indicate a very high degree of oxidation of the hydrothermal solutions with significant activity of K, P and S. It is assumed that the vanadium-bearing solutions were essentially chloride-aqueous, and the source of vanadium was authigenic pore hematite from the red sandstones hosting the veins.

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Kola半岛Mys Korabl紫晶矿床热液赤铁矿脉中wakefieldite-(Ce)的新成因类型

在这项工作中，我们描述了Kola半岛Mys Korabl紫水晶矿床热液赤铁矿矿脉中k -长石簇中与独居石-(Ce)和横纹石-(Ce)相关的wakefieldite-(Ce)的新成因。根据化学成分，所研究的尾流场-(Ce)的平均经验化学式为（Ce0.43Nd0.19La0.16Ca0.10Pr0.05Y0.04Sm0.03）1.00(V0.89Fe0.05P0.04) 0.980 o4。wakefieldite-(Ce)与ree -phosphate之间的关系表明：monazite-(Ce)→wakefieldite-(Ce)→rhabdophane-(Ce)。矿物共生[热液赤铁矿、钾长石、稀土（REE）磷酸盐]和组合中矿物的化学特征（REE分布、SO3和Cl含量升高）表明，热液溶液的氧化程度非常高，K、P、s活性显著。假设含钒溶液基本为氯化物水溶液，钒的来源为矿脉所在红砂岩中的自生孔隙赤铁矿。

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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.