Mining & Minerals

Research Conducted at Novosibirsk State University Has Provided New Information about Nitrogen

  2012 FEB 3 - (VerticalNews.com) -- According to the authors of a study from Novosibirsk, Russia, "Variations in the isotopic composition of carbon and the nitrogen contents in diamonds from placers of the northeastern portion of the Siberian Platform have been examined. The results obtained indicate that there is no correlation between local variations in the isotopic composition of carbon and the nitrogen content and the degree of nitrogen aggregation."

  "It has been demonstrated that changes in oxygen fugacity in the course of the growth of diamonds of the V variety do not affect the isotopic composition of carbon. The nature of the variations in the isotopic composition of carbon and the nitrogen contents indicate that there were at least two sources of carbon. The sources of lightweight and weighted compositions of carbon in the diamonds could be organic carbon and carbon in marine carbonates of the subducted crust of the Earth, respectively," wrote V.S. Shatskii and colleagues, Novosibirsk State University.

  The researchers concluded: "Mantle carbon was involved in the diamond formation process at the final stages of the growth."

  Shatskii and colleagues published the results of their research in Doklady Earth Sciences (Local Variations in Carbon Isotopes and Nitrogen Contents in Diamonds from Placers of the Northeastern Portion of the Siberian Platform. Doklady Earth Sciences, 2011;440(1):1282-1286).

  For additional information, contact V.S. Shatskii, Novosibirsk State Univ, Novosibirsk 630090, Russia.

  The publisher of the journal Doklady Earth Sciences can be contacted at: Maik Nauka, Interperiodica, Springer, 233 Spring St, New York, NY 10013-1578, USA.

  Keywords: City:Novosibirsk, Country:Russia, Region:Eurasia, Inorganic Chemicals, Mining and Minerals

  This article was prepared by VerticalNews Mining & Minerals editors from staff and other reports. Copyright 2012, VerticalNews Mining & Minerals via VerticalNews.com.