Characteristics of Titanium-Bearing Inclusions Found in Corundum of Luobusa Podiform Chromitite,Tibet
Xu Xiangzhen
Yang Jingsui
Xiong Fahui
Guo Guolin
Abstract：The titanium-bearing alloy and titanium-bearing oxide inclusions in corundum collected from Luobusa podiform chro-mitite in Tibet are studied.The EDS and EPMA analyses show that the Ti-N alloys are rounded or forming a quincunx with the size of 17μm×35μm;the Ti-B alloys are long columnar in size of 10μm×58μm;the authigenic and exnotopic Ti-C alloys are 40μm×50μm;the Ti-Si-P and Ti-Si-Fe alloys occur as highly heterogeneous melt in the corundum and the Ti-Al-Zr oxides are pretty pure in composition.Considering the unusual ultra-high pressure mantle mineral groups like diamond and moissanite recovered from the Luobusa chromitite,it is suggested that the corundum and its special mineral inclusions might form at the high-pressure deep mantle environment.
Keywords：mineral inclusioncorundumchromititeLuobusaTibet
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：13( 1025-1037 )