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200th Anniversary Meeting of the Russian Mineralogical Society
Saint Petersburg, Russia
10-13 October 2017
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http://www.minsoc.ru/2017/
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Conferences & Meetings 200th Anniversary Meeting of the Russian Mineralogical Society
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Fluorcarbonates of lanthanides as the typical minerals of Kimozero kimberlites (Karelia) metamorphosed to the Prehnite-pumpellyite facies

RMS-DPI code:  2017-1-280-0
Scientific session:  6. Mineral diversity and evolution of mineral formation processes.
Author listing:  Putintseva E.V., Spiridonov E.M.
Principal author:  Spiridonov Ernst Maxovich.
Language:  Russian
Abstract - Summary 
(short description):
Metamorphosed Kimozero kimberlites, which petrologically are metakimberlites of the prenhnite-pumpellyite facies, consist of antigorite, actinolite, tremolite, calcite, dolomite, chlorites, magnetite, talc, sphene, rutile, hematite, ferropseudobrookite, Fe-Ni sulfides, apatite, zircon, baddeleyite, bixbyite, thorite. REE minerals of metakimberlites, such as allanite, bastnäaesite, parisite, monazite, inherited the Ce, Ce-La and Ce-La-Nd characteristics of magmatic calcite, perovskite and apatite. Allanite-(Ce) is widespread. Bastnäsite-(Ce) and Ц(La), parasite-(Ce) and
-(La) or monazite-(Ce) with prevalence of hydroxyl groups and less dominant fluor groups have replaced allanite at the later stages of metamorphism.
Key words: metakimberlites of the prehnite-pumpellyite facies, hydroxylbastnäsite, hydroxylparasite, bastnäsite, parasite.

 
RMS-DPI code:  2017-1-280-0
Pages:  309-310
File of proceedings 
(PDF): 
 115 K
Status:  printed
Recieved:  22/08/2017
Accepted:  17/09/2017
Published on-line:  07/12/2017
Permanent address of publication:  http://www.minsoc.ru/2017-1-280-0/
Contact author(s):  Spiridonov, Ernst Maxovich.
 
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