Mixed-habit type Ib-IaA diamond from an Udachnaya eclogite

Dmitry Zedgenizov, Irina Bogush, Vladislav Shatsky, Oleg Kovalchuk, Alexey Ragozin, Viktoriya Kalinina

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The variety of morphology and properties of natural diamonds reflects variations in the conditions of their formation in different mantle environments. This study presents new data on the distribution of impurity centers in diamond type Ib-IaA from xenolith of bimineral eclogite from the Udachnaya kimberlite pipe. The high content of non-aggregated nitrogen C defects in the studied diamonds indicates their formation shortly before the stage of transportation to the surface by the kimberlite melt. The observed sectorial heterogeneity of the distribution of C-and A-defects indicates that aggregation of nitrogen in the octahedral sectors occurs faster than in the cuboid sectors.

Original languageEnglish
Article number741
Number of pages12
JournalMinerals
Volume9
Issue number12
DOIs
Publication statusPublished - Dec 2019

Keywords

  • Diamond
  • Eclogite
  • Mantle
  • Nitrogen
  • eclogite
  • LITHOSPHERIC MANTLE
  • nitrogen
  • INFRARED-ABSORPTION
  • NATURAL DIAMOND
  • MINERAL INCLUSIONS
  • STABLE-ISOTOPES
  • diamond
  • RE-OS AGE
  • NITROGEN
  • mantle
  • CARBON-ISOTOPE
  • ISOTOPE FRACTIONATION
  • KIMBERLITE PIPE

State classification of scientific and technological information

  • 38.35 Mineralogy
  • 38 GEOLOGY

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