| 程奋维,吴见新,赵兴元,马国雄,项敦峰,杨怀龙,赵航.新疆尾亚钒钛磁铁矿床地质物化探特征及综合找矿标志[J].矿产勘查,2025,16(10):2275-2288 |
| 新疆尾亚钒钛磁铁矿床地质物化探特征及综合找矿标志 |
| Geological, geophysical, geochemical characteristics and comprehensive explo-ration indicators of the Weiya vanadium-titanium magnetite deposit in Xinjiang |
| 投稿时间：2025-05-01 |
| DOI：10.20008/j.kckc.202510005 |
| 中文关键词: 钒钛磁铁矿 地质特征 找矿标志 尾亚 哈密市 |
| 英文关键词: vanadium-titanium magnetite deposit geologic features prospecting signs Weiya Hami |
| 基金项目:本文受新疆哈密市尾亚钒钛磁铁矿勘探项目(2023B03006)与哈密市瑞泰矿业有限责任公司勘查资金及自治区重点研发新疆重要成矿带铜镍铬钴战略性矿产成矿预测与潜力评价关键技术研究项目(2023B03006)联合资 |
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| 中文摘要: |
| 尾亚钒钛磁铁矿床位于中天山地块东段的东天山成矿带，产于印支期层状基性—超基性杂岩体中，具品位低(TFe平均品位 16.3%)、规模大(铁矿储量约 3.6亿 t)，成矿元素多(Fe、Ti、V、P等)等地质特征。其地质物化探特征研究相对薄弱，勘查找矿标志尚不明确。本文基于矿床地质、地球物理、地球化学特征研究，明确了控矿因素，集成了综合勘查找矿标志。研究表明矿床含矿岩体是高分异的层状基性—超基性小岩体，垂向分异显著，自下而上发育层状辉石-橄榄辉长岩-辉长岩序列。矿床是典型的岩浆晚期分异-贯入复合型矿床，矿化类型包含脉状贯入型块状/海绵陨铁状矿石及辉长岩相浸染状矿石，后者为主矿体，成矿过程中受构造与岩相控制。含矿岩体具有 Cr-Ni-Co-Fe-Ti-P地球化学异常组合，同时具有高磁异常耦合特征。因此，高分异的基性-超基性岩体、贯入型铁矿体、浸染状矿石、Cr-Ni-Co-Fe-Ti-P元素组合异常及高磁异常是尾亚钒钛磁铁矿床的找矿标志，该研究可为同类型钒钛磁铁矿床的勘查提供参考。 |
| 英文摘要: |
| The Weiya vanadium-titanium magnetite deposit is situated on the northern margin of the CentralTianshan tectonic belt and occurs within an Early Triassic layered mafic-ultramafic complex. It exhibits geologicalcharacteristics including low grade (average TFe grade of 16.3%), large scale (iron ore reserves of approximately360 million tons), and multiple ore-forming elements (Fe, Ti, V, P, etc.). Research on its geological, geophysical,and geochemical characteristics is relatively weak, and the exploration indicators remain unclear. Based on studiesof the deposit's geology, geophysical properties, and geochemical signatures, this study clarifies the ore-controllingfactors and integrates comprehensive exploration indicators. Research indicates that the ore-bearing intrusion is ahighly differentiated, small, layered mafic-ultramafic body with significant vertical differentiation. A layered se.quence of pyroxene-olivine gabbro to gabbro develops from bottom to top. The deposit is a typical late magmaticdifferentiation-injection composite type. Mineralization types include vein-injected massive/sideronitic ores anddisseminated ores within the gabbro phase, with the latter forming the main orebody. Both structure and lithofaciescontrolled the mineralization process. The ore-bearing intrusion exhibits a Cr-Ni-Co-Fe-Ti-P geochemicalanomaly association coupled with high magnetic anomalies. Therefore, highly differentiated mafic-ultramafic intru.sions, injected iron orebodies, disseminated ores, Cr-Ni-Co-Fe-Ti-P elemental association anomalies, and highmagnetic anomalies serve as prospecting indicators for the Weiya vanadium-titanium magnetite deposit. This studycan provide a reference for the exploration of similar vanadium-titanium magnetite deposits. |
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