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Fedorov session 2016
Saint Petersburg, Russia
10-11 October 2016
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The origin of corundum in Kiyostrov layered intrusion from Belomorian mobile belt

RMS-DPI code:  2016-1-65-0
Scientific session:  2. Applied mineralogy
Author listing:  Khodorevskaya L.I.
Principal author:  Khodorevskaya Liliya Ivanovna
Language:  Russian
Abstract - Summary 
(short description):
It is shown that the high-temperature metasomatism of gabbro from the island Kiy (the Onega Bay of the White Sea) resulted in formation of garnet-amphibole veins, garnetites and amphibole rocks containing zoisite. The presence of corundum (ruby) metasomatite associated with leaching of alumina from the host gabbro. Low salt concentrations in the fluid was necessary condition for the corundum formation. Thus, the high content of alumina in the host gabbro, presence of metasomatites, having the tschermakite amphibole composition, and absence of acidic plagioclase can be considered as conditions of the corundum formation. Conditions (temperature, pressure and water activity in the fluid) of formation of metasomatic rocks containing corundum were estimated
 
RMS-DPI code:  2016-1-65-0
File of proceedings 
(PDF): 
 109 K
Status:  preprint
Accepted:  28/08/2016
Contact author(s):  Khodorevskaya, Liliya Ivanovna
 

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