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投稿时间:2016-01-20 修订日期:2016-01-25
投稿时间:2016-01-20 修订日期:2016-01-25
中文摘要: 加拿大New Quebec造山带北段Hawk Ridge地区,发现多个受镁铁—超镁铁质火成堆积岩体控制的铜镍硫化物矿床和矿点,其中以Gamma矿床较为典型。该矿床内火成堆积岩发育正堆积岩和中堆积岩,具有典型正堆积结构和中堆积结构。岩相学特征表明,该矿床堆积岩体为浅成侵入相产物。中堆积岩和正堆积岩形成上、下两个堆积层构造,整体表现为含大量辉石堆晶和硫化物堆晶的中堆积岩位于岩体上部,含少量硫化物堆晶和斜长石堆晶的正堆积岩位于下部,形成由下到上岩石密度呈低-最高-较高的特殊分配模式。本次研究工作总结了该区成矿模式,很好地解释了该区火成堆积岩体和矿体的分布规律。通过对Gamma矿床的研究,有效地指导了Hawk Ridge地区寻找新矿体,尤其是富矿体,以扩大铜镍资源量和提升矿床经济价值。
Abstract:There are many Cu-Ni sulfide deposits and mineral occurrences, among which Gamma deposit is typical representative, controlled by mafic—ultramafic igneous cumulates in Hawk Ridge region, the north of New Quebec Orogen, Canada. Orthcumulates and mesocumulates, separately having orthcumulate texture and mesocumulate texture, are developed in Gamma cumulates. Petrologic characteristics show that the igneous cumulates of Gamma deposit belongs to hypabyssal intrusive phase. There are two structure of accumulated beds, formed by orthcumulates and mesocumulates, performed as that mesocumulates is located on the upper part and orthcumulates is located in the lower part. The rock density showed the low-highest-higher special distributing model from the bottom to the top of Gamma cumulates. Metallogenic model summarized by this study commendably explained the distribution law of cumulates and ore bodies. The studying of Gamma deposit has contributed to find new ore bodies, especially enriched ore bodies, to expand Cu-Ni resources and increase value of deposits in Hawk Ridge area.
keywords: Cu-Ni sulfide deposit mafic-ultramafic igneous cumulates hypabyssal intrusive phase metallogenic model
文章编号: 中图分类号: 文献标志码:
基金项目:国外矿产资源风险勘查专项
作者 | 单位 | |
胥迎红* | 中国地质大学北京地球科学与资源学院 | henryxu7283@163.com |
王京彬 | 北京矿产地质研究院 | |
王向兰 | 有色金属矿产地质调查中心 | |
张汉成 | 有色金属矿产地质调查中心 |
引用文本:
胥迎红,王京彬,王向兰,张汉成.加拿大New Quebec造山带北段Gamma铜镍矿床地质特征及成矿模式[J].有色金属(矿山部分),2016,68(4):.
XU Yinghong,WANG Jingbing,WANG Xianglan,ZHANG Hancheng.The Geological Characteristics and Metallogenic Model of Gamma Cu-Ni Deposit in the North of New Quebec Orogen, Canada[J].NONFERROUS METALS(Mining Section),2016,68(4):.
胥迎红,王京彬,王向兰,张汉成.加拿大New Quebec造山带北段Gamma铜镍矿床地质特征及成矿模式[J].有色金属(矿山部分),2016,68(4):.
XU Yinghong,WANG Jingbing,WANG Xianglan,ZHANG Hancheng.The Geological Characteristics and Metallogenic Model of Gamma Cu-Ni Deposit in the North of New Quebec Orogen, Canada[J].NONFERROUS METALS(Mining Section),2016,68(4):.