Russian Mineralogical Society
XIII All-Russian conference on thermobarogeochemistry in conjunction with IV APIFIS symposium
The first data of fluid inclusions research of fenites Amba Dongar, India

RMS-DPI code:  2008-1-16-0
Scientific session:  Fluid inclusions in magmatic minerals as indicators of magmas generation conditions and evolution
Author listing:  Burtseva M.V., Doroshkevich A.G.
Principal author:  Burtseva Maria
Language:  Russian
Abstract - Summary 
(short description):
The Amba Dongar carbonatite-alkalic complex is a subvolcanic diatreme with a ring dike of sovite. Country rocks are sandstones contained > 99 % SiO2. The fenitization of sandstone around ring dike of sovite is on distance up to 300 m. Fenites consist of pyroxene, quartz, potash feldspar and albite. The fluid inclusions in quartz and pyroxene were investigated. Pyroxene is the earliest mineral. Three types of inclusions are observed in it: 1- solid, 2- primary polyphase, 3- secondary gas-liquid. Polyphase inclusions consist of a liquid, gas and mineral phase. The temperature of homogenization of inclusions varies within 334-423º C, it probably corresponds for first stage of rock formation. The quartz forms xenomorphic grains. It hes two types of inclusions primary and secondary. The temperature of homogenization of primary inclusions is 130º C, it reflects a final stage of fenite formation.
 
Date of presentation:  22/09/2008
 
RMS-DPI code:  2008-1-16-0
Proceeedings volume 
in the RMS catalogue:
 
Proceedings of XIII International conference on thermobarogeochemistry and IVth APIFIS symposium. Volume 1.
Pages:  82-84
File of proceedings 
(PDF): 
 132 K
Status:  printed
Recieved:  27/02/2008
Accepted:  28/06/2008
Published on-line:  12/02/2009
Permanent address of publication:  http://www.minsoc.ru/2008-1-16-0/
Contact author(s):  Burtseva, Maria

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