华北克拉通东南部上石炭统本溪组金红石型钛矿成矿物质来源
DOI:
作者:
作者单位:

1.中国冶金地质总局山东正元地质勘查院;2.关键战略性矿产资源勘查济南市工程研究中心;3.中国冶金地质总局山东局

作者简介:

通讯作者:

中图分类号:

基金项目:

自然资源部新一轮找矿突破战略行动科技支撑项目


The Mineral Material Sources of Rutile-type Titanium Deposits in the Upper Carboniferous Benxi Formation, Southeastern North China Craton
Author:
Affiliation:

1.Geological Exploration Institute of Shandong Zhengyuan,China Metallurgical Geology Bureau,Jinan;2.Jinan Engineering Research Center for Exploration of Key Strategic Mineral Resources,Jinan;3.Shandong bureau of China Metallurgical Geology Bureau;4.Geological Exploration Institute of Shandong Zhengyuan, China Metallurgical Geology Bureau

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    华北地区本溪组近年来新发现古风化沉积金红石型钛矿,其成矿物质来源成为制约矿床成因研究的关键科学问题。以华北克拉通东南部鲁西地区为例,从锆石原位微区地球化学角度入手,结合锆石地球化学大数据和区域构造—沉积演化系统对比,拟揭示其成矿物质潜在来源,为进一步科学研究和找矿部署提供启示。研究表明,成矿地质体碎屑锆石主要为古生代岩浆成因,锆石形态破损严重,经历过长距离搬运。锆石原位微区地球化学特征显示,物源区寄主岩石类型主要为花岗岩类,岩性以花岗闪长岩、英云闪长岩或正长岩为主,形成的构造背景类型为大陆边缘弧型。结合华北克拉通古生代源汇演化过程,推测成矿物质来源主要为北秦岭造山带或地质历史中相当于此而在演化过程中消亡的造山带古生代花岗岩类,并以现存的北秦岭造山带为例,厘定清水—太白、丹凤—桐柏等地为潜在成矿物质源区。从华北克拉通古生代大陆演化过程、源汇构造演化历史及构造—沉积演化三个维度,系统建立了华北克拉通大地构造演化及源汇控制效应模式,解释了华北不同区域本溪组金红石型钛矿成矿潜力差异的内因,为进一步成矿作用研究和宏观找矿方向部署提供了理论依据。

    Abstract:

    Recently discovered paleo-weathering sedimentary rutile-type titanium deposits in the Benxi Formation of North China have raised critical scientific questions regarding their mineralizing material sources. Taking the Luxi area in the southeastern North China Craton as a case study, this research employs zircon in-situ microgeochemical analysis, integrates zircon geochemical big data, and conducts systematic comparisons with regional tectonic-sedimentary evolution to identify potential mineral sources. The findings provide insights for further scientific research and prospecting strategies. Key discoveries include: (1) Detrital zircons from mineralized geological bodies are predominantly Paleozoic magmatic in origin, exhibiting severe morphological damage indicative of long-distance transport; (2) In-situ microgeochemical analysis reveals that source rocks were primarily granitoids (granodiorite, tonalite, or syenite) formed in continental margin arc settings; (3) By integrating the Paleozoic source-to-sink evolution of the North China Craton, we propose that mineralizing materials likely derived from the North Qinling Orogenic Belt or analogous paleo-orogenic belts (now extinct), with the Qingshui-Taibai and Danfeng-Tongbai regions identified as potential source areas. Through three-dimensional analysis encompassing the craton"s Paleozoic continental evolution, source-to-sink tectonic history, and tectonic-sedimentary dynamics, we establish a comprehensive model for the craton"s geodynamic evolution and source-sink control effects. This framework elucidates the intrinsic causes of regional variations in rutile-type titanium mineralization potential across the North China Craton, providing theoretical foundations for further metallogenic studies and macro-scale prospecting strategies.

    参考文献
    相似文献
    引证文献
引用本文
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2025-10-15
  • 最后修改日期:2025-12-16
  • 录用日期:2026-01-07
  • 在线发布日期:
  • 出版日期: