阿普利亚喀斯特（意大利南部）首次记录到因灰岩和粘土矿物相互作用而形成的罗曼尼奇石

IF 2.2 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Minerals Pub Date : 2024-09-13 DOI:10.3390/min14090935

Annamaria Fornelli, Francesca Micheletti, Pasquale Acquafredda, Annarosa Mangone

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引用次数: 0

摘要

在中生代碳酸盐岩岩层上的阿普利亚岩溶的一个小型古溶洞中发现了一种新的锰钡矿石--romanechite，其特征是主要由含铁方解石构成的淡红色沉积物和结核。锰钡矿石矿物的形成条件是一个引人入胜的研究领域，因为这些矿物可以作为重元素的清除剂，影响土壤、表层沉积物，甚至相关的水生系统。罗马锰矿的形成与富含铝、硅和铁的硅酸盐水溶液与石灰岩基质的逐渐相互作用有关。研究结果为我们提供了关于红锰沉积物形成的遗传过程的新见解，并支持由于石灰岩和同生硅质泥的化学变化而形成的多源沉积物。

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First Record of Romanechite in the Apulian Karst (Southern Italy) Resulting from the Interaction of Limestones and Clay Minerals

A new occurrence of the Mn-Ba ore mineral, romanechite, has been discovered in a small paleo-doline of the Apulian karst on Mesozoic carbonate rock successions, characterized by reddish incrustations and nodules made essentially by Fe-bearing calcite. The conditions under which Mn-Ba ore minerals form represent an intriguing area of research, as these minerals can act as scavengers for heavy elements, impacting soils, surface sediments, and even associated aquatic systems. The genesis of romanechite is linked to the progressive interaction of silicate aqueous solutions enriched in Al, Si, and Fe with the limestone substrate. The findings provide new insights into the genetic processes responsible for the formation of reddish Mn incrustations, supporting their polygenetic origin because of the chemical alteration of limestone and allochthonous siliciclastic muds.

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来源期刊

Minerals MINERALOGY-MINING & MINERAL PROCESSING

CiteScore

4.10

自引率

20.00%

发文量

1351

审稿时长

19.04 days

期刊介绍： Minerals (ISSN 2075-163X) is an international open access journal that covers the broad field of mineralogy, economic mineral resources, mineral exploration, innovative mining techniques and advances in mineral processing. It publishes reviews, regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.