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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第45卷

期数:

2023年第05期

页码:

1015-1025

栏目:

庆贺汤中立院士从事地质工作七十周年专辑

出版日期:

2023-09-15

文章信息/Info

Title:

Theory and Practice of Small Intrusive Mineralization

文章编号:

1672-6561(2023)05-1015-11

作者:

汤中立; 段 俊; 徐 刚; 钱壮志; 闫海卿; 焦建刚; 陈阳阳

(长安大学 地球科学与资源学院,陕西 西安 710054)

Author(s):

TANG Zhong-li;  DUAN Jun;  XU Gang;  QIAN Zhuang-zhi;  YAN Hai-qing;  JIAO Jian-gang;  CHEN Yang-yang

(School of Earth Science and Resources, Chang'an University, Xi'an 710054, Shaanxi, China)

关键词:

岩浆(热液)矿床;  小岩体成(大)矿;  成矿机制;  找矿突破;  Cu-Ni-PGE硫化物矿床;  镁铁—超镁铁质岩体;  成矿要素;  评价方法

Keywords:

magmatic(hydrothermal)deposit;  small intrusive mineralization;  metallogenic mechanism;  prospecting breakthrough;  Cu-Ni-PGE sulfide deposit;  mafic-ultramafic intrusion;  metallogenic element;  evaluation method

分类号:

P612

DOI:

10.19814/j.jese.2023.09001

文献标志码:

A

摘要:

镍、铜、铂族、钨、锡、钼等关键矿产主要产于小岩体和/或附近的围岩中。系统阐述了小岩体成(大)矿的机制,并以岩浆型Cu-Ni-PGE硫化物矿床为例,总结成矿理论的主要科学问题; 依据小岩体成(大)矿理论指导找矿突破实例,针对镁铁—超镁铁质岩体,从地质、物探、化探、遥感等信息中总结成矿要素,提出了快速筛选含矿岩体的评价方法。大量勘查成果表明:小岩体成(大)矿理论对地质找矿具有重要指导意义。

Abstract:

In the new round of strategic breakthrough in mineral prospecting, critical mineral resources, such as Ni, Cu, PGE, W, Sn and Mo, are mainly produced in the small intrusions and/or their adjacent country rocks. The mechanism of “small intrusive mineralization” was systematically explained; the main scientific issues of the theoretical system, such as the characteristics of the source and the evolution process of the ore-forming magma and/or hydrothermal fluid, the mass balance of the ore-bearing intrusion, and the emplacement depth, uplift height, erosion degree of the ore deposits, were discussed. By introducing examples of mineral prospecting breakthroughs guided by the theory of “small intrusive mineralization”, a three-step evaluation method for mafic-ultramafic intrusion was proposed to screen out the ore-bearing intrusion quickly and economically by grasping the key information elements from a variety of geology, geophysics, geochemistry, and remote sensing imagery. Exploration results to date indicate that the theory of “small intrusive mineralization” has enormous prospective potential.

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备注/Memo

备注/Memo:

收稿日期:2023-09-01; 修回日期:2023-09-09投稿网址:http:∥jese.chd.edu.cn/
基金项目:中国工程院战略研究与咨询项目(2023-XZ-20); 陕西省自然科学基础研究计划项目(2023-JC-YB-224,2022JM-169)
作者简介:汤中立(1934-),男,安徽安庆人,教授,博士研究生导师,理学博士,中国工程院院士,E-mail:zytangzl@chd.edu.cn。

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