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200th Anniversary Meeting of the Russian Mineralogical Society
Saint Petersburg, Russia
9-12 October 2017
2017minsoc.ru
http://www.minsoc.ru/2017/
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Comparative analysis of silicate spherules from worlds kimberlite and lamproite

RMS-DPI code:  2017-1-205-0
Scientific session:  4. Minerals as indicators of the rock and ore formation.
Author listing:  Yatsenko I.G., Zinchenko V.N., Marshintsev V.K., Bekecha S.N., Bilyk N.
Principal author:  Zinchenko Vladimir Nikolaevich
Language:  Russian
Abstract - Summary 
(short description):
The results of studying the chemical composition of Ti-Mn-Ca-Si spherules from kimberlites and lamproites of the Yakutsk, Arkhangelsk, Angola-Congolese kimberlite diamondiferous provinces and the Ukrainian Shield are presented. According to the composition of petrogenic elements, silicate spherules are divided into two main types: titanium-manganese-silicate (TMIS) and calcium-silicate (CS). It is found that spheroules are extremely enriched in Ti (up to 48%) and Mn (up to 14%), or Ca (up to 40%), which distinguishes them in composition from meteorite matter, as well as products of vitrification of parent rocks due to impact processes. It is assumed that TMIS and CS spherules are a stable component of explosive rocks associated with endogenous sources, for which there was a stably stable equilibrium coexistence of silicate, enriched Ti, Ca and Mn, and metallic (native iron) phases.
 
RMS-DPI code:  2017-1-205-0
Pages:  361-363
File of proceedings 
(PDF): 
 200 K
Status:  printed
Recieved:  27/08/2017
Accepted:  16/09/2017
Published on-line:  07/12/2017
Permanent address of publication:  http://www.minsoc.ru/2017-1-205-0/
Contact author(s):  Zinchenko, Vladimir Nikolaevich
 

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