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Conferences & Meetings XIII All-Russian conference on thermobarogeochemistry in conjunction with IV APIFIS symposium
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Primary inclusions in chromites from the komatiitic basalts cumulate on Vetreny Poyas, SE Fennoscandia

RMS-DPI code:  2008-1-25-0
Scientific session:  Fluid inclusions in magmatic minerals as indicators of magmas generation conditions and evolution
Author listing:  Kulikov V.S., Kulikova V.V., Bychkova Ya.V.
Principal author:  Kulikova Victoria V.
Language:  Russian
Abstract - Summary 
(short description):
Summary. In the central Vetreny Poyas, SE Fennoscandian shield, an areally extensive 110 m deep lava lake is exposed consisting of remarkably fresh differentiated komatiitic basalt. Age of rocks-(Sm-Nd isochrone) is 241034 Ma for whole rock samples, olivine, augite and pigeonite separates. For the first time authors have found primary inclusions in chromites from cumulate zone (Puchtel et al., 1996). They were research in Institute of geology Karelian research centre RAS. Primary inclusions in chromites consist more of Mg, Fe, Ca and less in Al, Si, and Na than matrix rocks from cumulate zone of lava lake. They composition correlated with breccia komatiitic basalt of top lava lake. New date shows that primary high - magnesian magma of volcanic rocks of Vetreny Poas is low-magnesian basaltic part of komatiitic series. It is not boninitic rocks as was published by E. Sharkov (2004).

 
Date of presentation:  23/09/2008
 
RMS-DPI code:  2008-1-25-0
Proceeedings volume 
in the RMS catalogue:
 
Proceedings of XIII International conference on thermobarogeochemistry and IVth APIFIS symposium. Volume 1.
Pages:  106-109
File of proceedings 
(PDF): 
 157 K
Status:  printed
Accepted:  29/06/2008
Published on-line:  13/02/2009
Permanent address of publication:  http://www.minsoc.ru/2008-1-25-0/
Contact author(s):  Kulikova, Victoria Vladimirovna
 

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