Abstract Recent exploration work in South Morocco revealed the occurrence of several carbonatite bodies, including the Paleoproterozoic Gleibat Lafhouda magnesiocarbonatite and its associated iron oxide mineralization, recognized here as iron-oxide-apatite (IOA) deposit type. The Gleibat Lafhouda intrusion is hosted by Archean gneiss and schist and not visibly associated with alkaline rocks. Metasomatized micaceous rocks occur locally at the margins of the carbonatite outcrop and were identified as glimmerite fenite type. Rare earth element (REE) and Nb mineralization is mainly linked to the associated IOA mineralization and is represented by monazite-(Ce) and columbite-(Fe) as major ore minerals. The IOA mineralization mainly consists of magnetite and hematite that usually contain large apatite crystals, quartz and some dolomite. Monazite-(Ce) is closely associated with fluorapatite and occurs as inclusions within the altered parts of apatite and along cracks or as separate phases near apatite. Monazite shows no zonation patterns and very low Th contents (

中文翻译：

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摩洛哥南部 Ouled Dlim 地块的 Gleibat Lafhouda 碳酸岩及其相关的氧化铁磷灰石矿床中贫钍的独居石和铌铁矿（Fe）矿化

摘要 摩洛哥南部最近的勘探工作揭示了几种碳酸盐岩体的产状，包括古元古代 Gleibat Lafhouda 镁碳酸盐岩及其相关的氧化铁矿化，这里被认为是铁氧化物磷灰石 (IOA) 矿床类型。Gleibat Lafhouda 侵入体由太古代片麻岩和片岩组成，与碱性岩石没有明显的关联。交代云母岩局部出现在碳酸盐岩露头的边缘，被确定为闪锌矿型。稀土元素 (REE) 和 Nb 矿化主要与伴生的 IOA 矿化有关，以独居石-(Ce) 和铌铁矿-(Fe) 为主要矿石矿物。IOA矿化主要由磁铁矿和赤铁矿组成，通常含有大的磷灰石晶体、石英和一些白云石。独居石-(Ce) 与氟磷灰石密切相关，作为磷灰石蚀变部分内的夹杂物和裂缝出现，或作为磷灰石附近的分离相出现。独居石没有显示分带模式和非常低的 Th 含量（