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Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170570
Description: Recent studies integrating mantle and lower crustal geochronology on xenolith samples, isotopic information from crustal zircons worldwide, and seismic tomographic imaging of deep lithosphere domains, ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170583
Description: Deep-seated xenoliths hosted in kimberlite pipes (Udachnaya, Leningradskaya, Yubileynaya, Komsomolskaya, Botuobinskaya, Zapolyarnaya) from the Siberian craton include mafic and felsic garnet granulite ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170591
Description: Diamonds from Sao-Luis (Brazil) are known to be originated from the depths of transition zone and lower mantle [1]. In this study we consider some aspects of the composition and evolution of growth me ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170608
Description: Microinclusions carrying high-density fluids (HDFs) with silicic, carbonatitic and saline compositions are common in fibrous diamonds and represent the medium in which their host diamond grew. Such in ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170611
Description: Trace-element patterns of high-Mg carbonatitic high- density fluids (HDFs) trapped in Siberian fibrous diamonds are similar to those of Group I kimberlites, but are slightly more fractionated. The pat ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170614
Description: Archean cratons are underlain by highly depleted subcontinental lithospheric mantle (SCLM). However, xenolith and xenocryst data [1; references therein] suggest that Archean SCLM has been extensively ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170634
Description: Mixed-habit diamonds are a relatively understudied subset of samples, considering the amount of research that has been carried out on these vessels from the mantle. They exhibit periods of growth duri ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170638
Description: Recent studies have shown that volumes of ancient depleted material can survive in the convecting asthenospheric mantle for long periods so that the use of Os model ages of mantle xenoliths to constra ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170962
Description: About 300 zircon grains have been recovered from the kimberlite concentrate of the Nyurbinskaya pipe with the aim of finding mantle zircons that would allow estimation of the age of kimberlite emplace ... More