Calculation of fractionation factors for carbon and oxygen isotopic exchange in the system calcite-carbon dioxide-water

1968 ◽  
Vol 72 (3) ◽  
pp. 800-808 ◽  
Author(s):  
Yan Bottinga
Keyword(s):  
Carbon Dioxide ◽  
Isotopic Exchange ◽  
Oxygen Isotopic ◽  
Fractionation Factors

scholarly journals A modeling investigation of canopy-air oxygen isotopic exchange of water vapor and carbon dioxide in a soybean field

2010 ◽  
Vol 115 (G1) ◽  
Author(s):  
Wei Xiao ◽  
Xuhui Lee ◽  
Timothy J. Griffis ◽  
Kyounghee Kim ◽  
Lisa R. Welp ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Water Vapor ◽  
Isotopic Exchange ◽  
Soybean Field ◽  
Oxygen Isotopic

Oxygen isotopic exchange between carbon dioxide and some molybdates or rare-earth elements

1977 ◽  
Vol 48 (3) ◽  
pp. 515-517 ◽  
Author(s):  
Kh.M. Minachev ◽  
G.V. Antoshin ◽  
N.K. Guin ◽  
D.G. Klissurski ◽  
N.Ts. Abadzhijeva
Keyword(s):  
Carbon Dioxide ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Isotopic Exchange ◽  
Oxygen Isotopic

FTIR Study of Adsorption and Photoassisted Oxygen Isotopic Exchange of Carbon Monoxide, Carbon Dioxide, Carbonate, and Formate on TiO2

2002 ◽  
Vol 106 (43) ◽  
pp. 11240-11245 ◽  
Author(s):  
L.-F. Liao ◽  
C.-F. Lien ◽  
D.-L. Shieh ◽  
M.-T. Chen ◽  
J.-L. Lin
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Isotopic Exchange ◽  
Ftir Study ◽  
Oxygen Isotopic

Forsterite reprecipitation and carbon dioxide entrapment in the lithospheric mantle during its interaction with carbonatitic melt: a case study from the Sung Valley ultramafic–alkaline–carbonatite complex, Meghalaya, NE India

2020 ◽  
pp. 1-12
Author(s):  
Shubham Choudhary ◽  
Koushik Sen ◽  
Santosh Kumar ◽  
Shruti Rana ◽  
Swakangkha Ghosh
Keyword(s):  
Carbon Dioxide ◽  
Lithospheric Mantle ◽  
Experimental Studies ◽  
Carbonatite Complex ◽  
Kerguelen Plume ◽  
Ne India ◽  
Isotopic Analyses ◽  
Oxygen Isotopic ◽  
Carbonatite Magma

Abstract Carbonatite melts derived from the mantle are enriched in CO2- and H2O-bearing fluids. This melt can metasomatize the peridotitic lithosphere and liberate a considerable amount of CO2. Experimental studies have also shown that a CO2–H2O-rich fluid can form Fe- and Mg-rich carbonate by reacting with olivine. The Sung Valley carbonatite of NE India is related to the Kerguelen plume and is characterized by rare occurrences of olivine. Our study shows that this olivine is resorbed forsterite of xenocrystic nature. This olivine bears inclusions of Fe-rich magnesite. Accessory apatite in the host carbonatite contains CO2–H2O fluid inclusions. Carbon and oxygen isotopic analyses indicate that the carbonatites are primary igneous carbonatites and are devoid of any alteration or fractionation. We envisage that the forsterite is a part of the lithospheric mantle that was reprecipitated in a carbonatite reservoir through dissolution–precipitation. Carbonation of this forsterite, during interaction between the lithospheric mantle and carbonatite melt, formed Fe-rich magnesite. CO2–H2O-rich fluid derived from the carbonatite magma and detected within accessory apatite caused this carbonation. Our study suggests that a significant amount of CO2 degassed from the mantle by carbonatitic magma can become entrapped in the lithosphere by forming Fe- and Mg-rich carbonates.

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