Scholarlink

Abstract <p>In the south of the Russian Far East, metalliferous (titanium, gold, platinum, etc.) Late Mesozoic intrusions of ultrabasic basites have been identified within the Sikhote-Alin orogenic belt. In the outer contour of one of them, the Ariadne dike, there are dikes of fluid-explosive breccias of alkaline picrites, characterized by a rather high degree of carbonation and enrichment with rare earth elements (REE), as well as Ba, Sr, Zr, V, Cr, Nb, Zn. The most common minerals concentrating REE are monazite-(Ce) and lucasite-(Ce). The total content of lanthanides, dominated by light REE, varies synchronously with the concentration of carbonaceous matter in the form of graphite. Isotope-carbon studies indicate the involvement of mantle and crustal processes in the formation of graphite-rare earth mineralization. It is assumed that the association of graphite with REE minerals can serve as one of the indicators in the predictive assessment of the total ore potential of ultrabasic magmatism. The presence of industrially promising high-carbon ore formations will also have the significant impact on the development of technology for extracting useful components.</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

Graphite-Rare-Earth Mineralization of Picrites of the Ariadne Ultrabasite-Basite Massif (Promorye)

  • 期刊论文

  • 发表日期：

    2025年9月15日

查看全文
  • V. P. Molchanov,
  • A. I. Khanchuk

摘要

Abstract

In the south of the Russian Far East, metalliferous (titanium, gold, platinum, etc.) Late Mesozoic intrusions of ultrabasic basites have been identified within the Sikhote-Alin orogenic belt. In the outer contour of one of them, the Ariadne dike, there are dikes of fluid-explosive breccias of alkaline picrites, characterized by a rather high degree of carbonation and enrichment with rare earth elements (REE), as well as Ba, Sr, Zr, V, Cr, Nb, Zn. The most common minerals concentrating REE are monazite-(Ce) and lucasite-(Ce). The total content of lanthanides, dominated by light REE, varies synchronously with the concentration of carbonaceous matter in the form of graphite. Isotope-carbon studies indicate the involvement of mantle and crustal processes in the formation of graphite-rare earth mineralization. It is assumed that the association of graphite with REE minerals can serve as one of the indicators in the predictive assessment of the total ore potential of ultrabasic magmatism. The presence of industrially promising high-carbon ore formations will also have the significant impact on the development of technology for extracting useful components.