| 俞军真,李德贤,王坚,陈鑫,史国梅,王伟德,赵宏斌,代兵,樊鑫.甘肃黑山铜镍多金属矿床“三位一体”勘查预测模型建立及应用示范[J].矿产勘查,2025,(1):155-165 |
| 甘肃黑山铜镍多金属矿床“三位一体”勘查预测模型建立及应用示范 |
| The“Trinity”prospecting prediction geological model and application demonstration of Heishan nickel-copper polymetallic deposit in Gansu Province |
| 投稿时间：2024-07-22 |
| DOI：10.20008/j.kckc.202501014 |
| 中文关键词: 黑山铜镍多金属矿床 三位一体 勘查预测模型 成矿地质体 成矿构造 成矿结构面 成矿作用特征标志 |
| 英文关键词: Heishan copper-nickel deposit trinity prospecting prediction model metallogenic geologicalbody metallogenic structure metallogenic structural plane mineralization characteristics and features |
| 基金项目: |
|
| 摘要点击次数: 188 |
| 全文下载次数: 72 |
| 中文摘要: |
| 黑山铜镍多金属矿床是截止目前在甘肃北山地区发现的唯一一个与基性—超基性岩浆作用有关具有规 模的中型硫化铜镍多金属矿床。本文全面整理和研究分析矿床地质特征，构筑了成矿地质体、成矿结构 面、成矿作用标志“三位一体”勘查预测信息模型，指导矿床深部找矿预测及勘查工作。结果显示成矿地 质体主要为晚泥盆世辉长岩相和橄榄岩相铁质基性—超基性杂岩体，矿体主要分布在橄榄岩相斜长方辉 橄榄岩和斜长二辉橄榄岩。成矿构造主要为橄榄岩相带构造和岩体与围岩接触带构造，成矿结构面主要 为原始结晶分异结构面，矿体主要分布在岩体深边部产状由陡变缓处和岩体与围岩接触带上盘，矿石类 型主要为浸染状、稠密浸染状和半海绵陨铁状贫矿石；蚀变类型主要为蛇纹石化和绿泥石化蚀变。勘查 预测模型显示预测成矿中心和验证靶区在矿区中段 300 m以下，经钻探工程验证实现找矿增储突破，探获 镍金属量规模达中型。找矿突破使黑山矿床成为甘肃北山地区现今发现的最大的硫化铜镍多金属矿床， 并为矿区深部及外围铜镍矿床(点)的勘查工作提供示范和指导。 |
| 英文摘要: |
| The Heishan copper-nickel polymetallic deposit is the only medium copper-nickel sulfide polyme.tallic deposit related to basic-ultrabasic magmatism found in Beishan area of Gansu Province up to now. In this pa.per, we comprehensively sorted out and studied the characteristics of deposit, constructed a“Trinity”comprehen.sive prospecting and prediction geological model of ore-forming geological body, ore-forming structural plane, ore-forming markers and carried out the prediction and exploration work of deep deposit. The results show that the ore-forming geological bodies are mainly Late Devonian gabbro facies and peridotite facies ferruginous basic-ultrabasiccomplex, and the ore bodies are mainly distributed in peridotite facies plagiozonite pyroxene and plagiozonite dipy.roxene peridotite. The metallogenic structures are mainly peridotite facies zone structure and rock mass and sur.rounding rock contact zone structure, the metallogenic structural plane is the original crystal differentiation struc.tural plane, and the main ore body is mainly distributed in the deep edge of the rock mass and the contact zone be.tween the rock mass and the surrounding rock. The ore types are mainly disseminated, dense disseminated andsemi-spongy iron lean ores. The main types of alteration are serpentinization and chlorite alteration. The explorationprediction model shows that the mineralization center is less than 300 meters in the middle section of the miningarea, and the drilling engineering verification has achieved a breakthrough in prospecting and storage, and the scaleof nickel metal has reached medium, which makes the Heishan deposit the largest copper-nickel sulfide polymetal.lic deposit found in Beishan area of Gansu Province, and provides a demonstration and guidance for copper-nickelprospecting and exploration in this area. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |