首页 | 本学科首页   官方微博 | 高级检索  
     检索      

中国镍矿成矿规律初探
引用本文:孙涛,王登红,钱壮志,付勇,陈郑辉,娄德波.中国镍矿成矿规律初探[J].地质学报,2014,88(12):2227-2251.
作者姓名:孙涛  王登红  钱壮志  付勇  陈郑辉  娄德波
作者单位:1. 中国地质科学院矿产资源研究所,国土资源部成矿作用与资源评价重点实验室,北京,100037
2. 长安大学地球科学与资源学院,西部矿产资源与地质工程教育部重点实验室,西安,710054
3. 中国地质科学院矿产资源研究所,国土资源部成矿作用与资源评价重点实验室,北京,100037;贵州大学资源与环境工程学院,贵阳,550012
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
摘    要:我国镍矿可分为岩浆型、海相沉积型和风化壳型3种预测类型.矿床形成时代较为连续,最早形成于中—新元古代,最晚形成于新生代,其中中—新元古代和晚古生代是形成矿床的两个高峰期;中—新元古代矿床主要分布在华北地块和扬子地块周缘,晚古生代镍矿主要分布在中亚造山带、峨眉山和塔里木大火成岩省范围内.岩浆型镍矿主要形成于大陆边缘裂解、造山带后碰撞伸展以及地幔柱3种构造背景,根据不同构造背景并结合主要岩浆作用特点,将与幔源基性—超基性岩有关的镍-铜-钴-铂族元素矿床成矿系列类型划分出与大陆裂解边缘幔源基性—超基性岩浆作用有关的镍-铜-钴-铂族元素矿床成矿亚类型、与地幔柱基性—超基性岩浆作用有关的镍-铜-钴-铂族元素矿床成矿亚类型、与造山带俯冲作用下幔源基性—超基性岩有关的镍-铜-钴-铂族元素矿床成矿亚类型、与造山带后碰撞伸展背景下幔源基性—超基性岩有关的镍-铜-钴-铂族元素矿床成矿亚类型等4种亚类型.分别对中—新元古代与大陆边缘裂解有关的镍铜(铂)矿床、寒武纪与黑色页岩有关的海相沉积型镍钼钒矿床、早二叠世与造山带伸展背景有关的镍铜矿床、晚二叠世与大火成岩省有关的镍铜(铂)矿床、新生代与风化壳有关的镍金矿床及其对应的典型矿床特征和成矿模式进行了叙述;认为大陆裂解边缘、地幔柱、造山带后碰撞伸展是我国镍矿形成的有利成矿地质背景,与邻近深大断裂、镁铁—超镁铁岩体、高MgO的原生岩浆(高镁玄武质岩浆)、深部岩浆作用、硫饱和与硫化物熔离共同组成岩浆型镍矿的6个重要地质条件.

关 键 词:矿产预测类型  成矿条件  成矿规律  镍矿  中国
收稿时间:2014/8/28 0:00:00
修稿时间:2014/11/16 0:00:00

Summary of Metallogenic Regularity for the Nickel Deposits, China
SUN Tao,WANG Denghong,QIAN Zhuangzhi,FU Yong,CHEN Zhenghui and LOU Debo.Summary of Metallogenic Regularity for the Nickel Deposits, China[J].Acta Geologica Sinica,2014,88(12):2227-2251.
Authors:SUN Tao  WANG Denghong  QIAN Zhuangzhi  FU Yong  CHEN Zhenghui and LOU Debo
Institution:Institute of Mineral Resources, Chinese Academy of Geological Sciences
Abstract:The prediction type of mineral resouces of the nickel deposits are composed by magmatic type, marine sedimentary type and weathering crust type in China. The formation age from the Neoproterozoic to Cenozoic, and the Neoproterozoic and late Paleozoic are the two peaks. The nickel deposits formed in Neoproterozoic era are located on the margin of the North China Block and Yangtze Block, and formed in the late Paleozoic are mainly distributed in the Central Asian Orogenic Belt (CAOB), Emeishan and the Tarim Large Igneous Provinces (LIPs). Magmatic nickel deposits are mainly related with the breakup of the continental margin, post-collision of the orogenic belt and mantle plume. According to the different tectonic background and main characteristics of magmatism, we can divided into 4 subtypes for the Ni-Cu-Co-PGE metallogenic series type of the ore deposits which related with the mantle-derived mafic-ultramafic rocks, (1) the Ni-Cu-Co-PGE metallogenic series subtype of the ore deposits related with the mantle-derived mafic-ultramafic rocks in the breakup of the continental margin, (2) the Ni-Cu-Co-PGE metallogenic series subtype of the ore deposits related with the mantle-derived mafic-ultramafic rocks in the mantle plume magmatism, (3) the Ni-Cu-Co-PGE metallogenic series subtype of the ore deposits related with the mantle-derived mafic-ultramafic rocks in the subduction of the orogenic belt, (4) the Ni-Cu-Co-PGE metallogenic series subtype of the ore deposits related with the mantle-derived mafic-ultramafic rocks in the post-collision of the orogenic belt. We have discussing the typical characteristics and metallogenic models for the Neoproterozoic related with the breakup of the continental margin Ni-Cu-(PGE) deposits, Cambrian black shale related marine sedimentary type Ni-Mo-V deposits, early Permian related with the post-collision of the orogenic belt Ni-Cu deposits, late Permian Large Igneous Provinces (LIPs) related Ni-Cu-(PGE) deposits, and Cenozoic weathering crust related Ni-Au deposits. The breakup of the continental margin, mantle plume and the post-collision of the orogenic belt are the important ore-forming geological background, and the discordogenic fault, mafic-ultramafic intrusion, high MgO primitive magma (high-MgO basaltic magma), deep magmatism, sulfur saturation and sulfide segregation are the 6 important geological conditions for the magmatic nickel deposits.
Keywords:Prediction type of mineral resouces  Metallogenic conditions  Metallogenic regularity  nickel deposits  China
本文献已被 万方数据 等数据库收录!
点击此处可从《地质学报》浏览原始摘要信息
点击此处可从《地质学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号