摩洛哥东反阿特拉斯Oumjrane-Boukerzia矿区:地质和构造岩浆环境的制约

IF 2.8 Q2 MINING & MINERAL PROCESSING
Abdel-ali Kharis, S. Ilmen, M. Aissa, L. Baidder, Azizi Moussaid, Hafid Mezougane, Bouchra Baidada, Nouamane El Ouad, Y. Atif, Hicham Houane, L. Maacha
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引用次数: 2

摘要

目的。本研究的目的是提供Oumjrane-Boukerzia矿区新的岩性、构造和岩浆特征。所得结果可用于指导整个Oumjrane-Boukerzia域内新的Cu、Ni、Pb、Zn矿床和含ba矿化的找矿工作。方法。本研究是在对研究区岩浆岩进行详细测绘、构造调查和地球化学研究的基础上进行的。发现。构造和微观构造分析揭示了与瓦里斯坎造山运动有关的三个复杂的多期构造事件:(1)泥盆纪的一个广泛期;(ii)纳莫罗-威斯特伐利亚时代的北西-东南挤压期;(iii) Stephanian-Autunian时代的NE-SW挤压期,以及(iv)晚三叠纪-侏罗纪时期可能与中大西洋张开有关的广泛晚期。该区的沉积岩局部被小型无日期辉长岩侵入。在地球化学上,这些辉长岩被描述为具有大陆拉斑岩亲缘性的富橄榄岩辉长岩,与泛大陆分裂时期的中大西洋岩浆省(CAMP)有关。创意。本文描述了摩洛哥东反阿特拉斯Oumjrane-Boukerzia矿区Cu、Ni、Zn、Pb沉积和ba成矿的主岩和构造事件。实际意义。地质研究,特别是岩石地层学、构造学和岩浆学的研究是找矿的重要内容。它们帮助勘探地质学家识别和确定成矿层,以发现新的矿物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Oumjrane-Boukerzia Mining District (Eastern Anti-Atlas, Morocco): Constraints of its geological and tectono-magmatic setting
Purpose. The purpose of the present research is to provide a new lithological, structural and magmatic features of the Oumjrane-Boukerzia Mining District. The results obtained are used to guide exploration works for identifying the new Cu, Ni, Pb, Zn depositions and Ba-bearing mineralization within the whole Oumjrane-Boukerzia domain. Methods. This research is based on detailed mapping, structural surveys and geochemical studies performed on the magmatic rocks in the studied area. Findings. Structural and microstructural analyses of the studied area have revealed three complex polyphase tectonic events related to the Variscan orogeny: (i) an extensive phase during the Devonian period; (ii) a NW-SE compressional phase of Namuro-Westphalian age; (iii) a NE-SW compressional phase of Stephanian-Autunian age, and (iv) an extensive late phase probably related to the opening of the Central Atlantic ocean during the Late Trias-Jurassic periods. The sedimentary rocks of the district are locally intruded by small undated gabbroic intrusions. Geochemically, these gabbroic bodies are described as olivine-rich gabbros with a continental tholeiitic affinity and suggested to be related to the Central Atlantic magmatic province (CAMP) during the Pangea break-up. Originality. The present study describes the host-rocks and structural events responsible for Cu, Ni, Zn, Pb deposition and Ba-bearing mineralization in the Oumjrane-Boukerzia Mining District (Eastern Anti-Atlas, Morocco). Practical implications. The geological studies, especially lithostratigraphic, tectonic and magmatism are essential in the mineral exploration. They help exploration geologists identify and define metallotects to discover new minerals.
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来源期刊
Mining of Mineral Deposits
Mining of Mineral Deposits MINING & MINERAL PROCESSING-
CiteScore
5.20
自引率
15.80%
发文量
52
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