Scholarlink

<p>Uranium (U) can be enriched in U-polymetallic deposits of various genetic types, with different ore-metal associations including U and many other critical metals. The major U-polymetallic deposits in the world are divided into nine genetic types, i.e., hydrothermal iron oxide-copper-gold-U type (herein, referred to as IOCG), quartz-pebble conglomerate type, unconformity-related type, alkaline rock- and carbonatite type, metamorphite type, volcanic- and granite-related type, carbonaceous-siliceous-pelitic type (herein, referred to as CSP), phosphate type, and co-basin coexistence type (including U-rich coal- and sandstone types). Among them, the first six are the main genetic types, and the last three are collectively referred to as the “Black rock-series type”, all belonging to the unconventional U resource type. Although these U-polymetallic deposits of different genetic types occur in different or specific tectonic settings, they generally exhibit complex metallogenic processes and special ore-forming mechanisms. Besides the involvement of the important geological and biological events occurring during the evolution of the Earth, other various factors differentially acting on U-polymetal mineralization processes are the direct causes controlling the presence of U-polymetals as symbiotic and/or concomitant products, and thereby result in different ore-metal associations in the U-polymetallic deposits of different genetic types. These factors include the differentiation in source regions of U polymetals or lithologies of ore-forming parent rocks, the physicochemical properties of ore-bearing hydrothermal fluids/melts, the geochemical behaviors of different ore-forming elements in the same magmatic-hydrothermal mineral systems, the similarities and differences in complex type and their stability or activity, as well as the mixing of fluids/melts with different redox states, and interaction between oxidizing fluids/melts and reducing substances such as organic matters or fluids/melts-rock interaction. The authors finally point out that there are potential to find U-polymetallic deposits such as the hydrothermal IOCG-, the quartz-pebble conglomerate-, the unconformity-related-, the metamorphite-, and the alkaline rock- and carbonatite types in China.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

U (uranium)-polymetallic mineral systems in the world: Genetic types, metallogenic settings and ore-forming mechanisms, and perspective for exploration

  • 期刊论文

  • 发表日期：

    2025年3月14日

查看全文
  • Deru Xu,
  • Chanjuan Wang,
  • Bin Li,
  • Guoxiang Chi,
  • Cui Yang,
  • Wei Deng,
  • Wenhao Li,
  • Ying Li,
  • Hengsong Zhang,
  • Longfei Luo,
  • Yaoyao Liao,
  • Shaohao Zou,
  • Teng Deng,
  • Zenghua Li

摘要

Uranium (U) can be enriched in U-polymetallic deposits of various genetic types, with different ore-metal associations including U and many other critical metals. The major U-polymetallic deposits in the world are divided into nine genetic types, i.e., hydrothermal iron oxide-copper-gold-U type (herein, referred to as IOCG), quartz-pebble conglomerate type, unconformity-related type, alkaline rock- and carbonatite type, metamorphite type, volcanic- and granite-related type, carbonaceous-siliceous-pelitic type (herein, referred to as CSP), phosphate type, and co-basin coexistence type (including U-rich coal- and sandstone types). Among them, the first six are the main genetic types, and the last three are collectively referred to as the “Black rock-series type”, all belonging to the unconventional U resource type. Although these U-polymetallic deposits of different genetic types occur in different or specific tectonic settings, they generally exhibit complex metallogenic processes and special ore-forming mechanisms. Besides the involvement of the important geological and biological events occurring during the evolution of the Earth, other various factors differentially acting on U-polymetal mineralization processes are the direct causes controlling the presence of U-polymetals as symbiotic and/or concomitant products, and thereby result in different ore-metal associations in the U-polymetallic deposits of different genetic types. These factors include the differentiation in source regions of U polymetals or lithologies of ore-forming parent rocks, the physicochemical properties of ore-bearing hydrothermal fluids/melts, the geochemical behaviors of different ore-forming elements in the same magmatic-hydrothermal mineral systems, the similarities and differences in complex type and their stability or activity, as well as the mixing of fluids/melts with different redox states, and interaction between oxidizing fluids/melts and reducing substances such as organic matters or fluids/melts-rock interaction. The authors finally point out that there are potential to find U-polymetallic deposits such as the hydrothermal IOCG-, the quartz-pebble conglomerate-, the unconformity-related-, the metamorphite-, and the alkaline rock- and carbonatite types in China.