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首页> 外文期刊>Geochemistry: exploration, environment, analysis >Listwaenitization and enrichment of precious metals in the hydrothermal mineralization zones of serpentinites in Sugecer-Van (Eastern Anatolia, Turkey)
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Listwaenitization and enrichment of precious metals in the hydrothermal mineralization zones of serpentinites in Sugecer-Van (Eastern Anatolia, Turkey)

机译：Sugecer-van（东安纳托利亚，土耳其东部蛇纹石水热矿化区贵金属藏

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摘要

An ophiolitic complex containing hydrothermally altered serpentinized ultramafic rocks was studied in an area on the eastern side of Lake Van near the village of Sugecer, Eastern Anatolia. Field observations and petrographic and geochemical analyses clearly showed that the serpentinites were altered to listwaenites via silicification and carbonatization. The listwaenites were classified as type-I and type-II listwaenites based on their mineral composition. The type-I listwaenites contained carbonate minerals, rare serpentine minerals, chromite and mariposite, whereas the type-II listwaenites contained mainly silicate minerals. The listwaenites were enriched in Au, As, Cu, Ni and Co relative to the serpentinites. The listwaenites also showed chondrite-normalized enrichment in light rare earth elements and depletion in heavy rare earth elements. The effects of tectonism were widely observed in the study area. Mineral enrichment in the Sugecer region was shown to be associated with the transport of minerals by hydrothermal fluids under the influence of tectonism.
机译：在瓦纳托利亚村附近的湖边湖东侧的一个地区研究了含有热热改变的蛇形岩石岩的眼镜络合物。现场观察和岩体和地球化学分析清楚地表明，通过硅化和碳化改变了蛇形素。 ListWaenites基于其矿物组成被归类为I型和II型ListWaites。 I型ListWaenites含有碳酸盐矿物，稀有蛇形矿物质，铬铁矿和马利亚物，而II型ListWaenites主要包含硅酸盐矿物质。 ListWaenites在Au，As，Cu，Ni和Co相对于蛇形素富集。 Listwaenites还表现出在轻稀土元素和重稀土元素的耗尽中的Chondrite归一化的富集。在研究区中广泛观察到构造的影响。 SUGECER区域中的矿物质富集被显示为在构造的影响下通过水热流体传输矿物质。

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