A new injection technique of microquantity of water from fluid inclusions into mass spectrometer for measurement of hydrogen and oxygen isotope compositions

The study of fluid inclusions is very important for understanding the physicochemical conditions of magmatic system during their entrapment by minerals, as well as for obtaining information on sources and evolution of fluid phase. Fluids are one of the most important agents of alteration of mantle r...

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Bibliographic Details
Published in:Geochemistry international 2016-02, Vol.54 (2), p.205-207
Main Authors: Buikin, A. I., Kuznetsova, O. V., Sevast’yanov, V. S., Nevinny, Yu. A.
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Fluid dynamics
Geochemistry
Hydrogen
Isotope studies
Mass spectrometry
Minerals
Oxygen
Oxygen isotopes
Rocks
Short Communications
Studies
Trace elements
Upper mantle
Water
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Summary:The study of fluid inclusions is very important for understanding the physicochemical conditions of magmatic system during their entrapment by minerals, as well as for obtaining information on sources and evolution of fluid phase. Fluids are one of the most important agents of alteration of mantle rocks, in particular, carbonatites and peridotites. They cause mantle metasomatism and enrichment of a deep protolith in trace elements, which later reflects in the geochemical features of generated magmas and related ore deposits. The finds of fluid inclusions in rock-forming minerals indicate the presence of a free fluid phase in the lower crust and upper mantle. The study of the fluid inclusions makes it possible to trace the variations in volatile composition depending on temperature and pressure, as well as the fluid regime of the system. Isotope studies of gases extracted from fluid inclusions in rocks and minerals provide insight into fluid source and gas evolution during metasomatic events.
ISSN:0016-7029
1556-1968
DOI:10.1134/S0016702916020038