David Ikome Lyonga , Christopher M. Agyingi , Ligbwah Victor Wotanie , Mary Ewokolo Mbua Etutu , Jean Paul Sep Nlomngan , Quentin Marc Anaba Fotze , Ngalla Ndi , Ganwa Alembert Alexandre
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引用次数: 0
摘要
矿业和石油部门是中非国家经济共同体(CEMAC)分区域,特别是喀麦隆的弹性经济的基石。这些矿床在结构上受到控制,随着全球对这些商品的需求,需要新的技术来识别更多的潜在前景。在这项研究中,利用Centre for Exploration Targeting网格分析技术对航磁数据集进行处理,绘制出喀麦隆北部Bidzar地区及其周围结构复杂的区域。勘探目标中心(CET)剖面趋势主要遵循ENE-WSW、NE-SW和E-W方向,而较小的趋势包括NNE-SSW、NW-SE和WNW-ESE方向。这些构造由变形阶段、片理、剪切带和断裂等组成,是喀麦隆的主要构造事件。由矢量化构造生成的接触产状密度(COD)和取向熵(OE)热图,描绘了喀麦隆北部Bidzar附近新元古代泛非绿岩带和变质沉积剪切岩性上与热液活动有关的潜在金矿远景。研究表明,基于航磁资料的构造解释是找矿的有效手段。
Heat map from aeromagnetic data processing to uncover potential gold prospects in Bidzar and surrounding area, North Cameroon
The mining and petroleum sectors serve as the cornerstone of a resilient economy in the CEMAC (Economic Community of Central African State) subregions and Cameroon in particular. These deposits are structurally controlled, and with the global demand for these commodities, novel techniques are required to identify additional potential prospects. In this study, aeromagnetic datasets were processed using the Centre for Exploration Targeting grid analysis technique to map out structurally complex zones in and around the locality of Bidzar, North Cameroon. The Centre for Exploration Targeting (CET) lineament trend predominantly follows ENE-WSW, NE-SW, and E-W orientations, while lesser trends include NNE-SSW, NW-SE, and WNW-ESE directions. These structures are attributed to deformation phases, foliations, shear zones, and faults, which indicate the major structural event in Cameroon. The Contact Occurrence Density (COD) and Orientation Entropy (OE) heat maps generated from the vectorized structures delineate potential gold prospects related to hydrothermal activity on the sheared lithologies of the Neoproterozoic Pan-African greenstone belt and metasediment in the vicinity of Bidzar, north Cameroon. This study demonstrates that structural interpretation based on aeromagnetic data is an effective tool in mineral discovery.