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Fluid inclusion and carbon isotope study from bamble granulites (South Norway) (1975)

Hoefs, J. ; Touret, J.

Springer

Contributions to mineralogy and petrology 52 (1975), S. 165-174

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ISSN: 1432-0967

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences

Notes: Abstract The carbon isotopic composition of CO2 from fluid inclusions in granulite facies rocks has been determined. The “primary” carbonic fluid — most probably being of Upper Mantle origin — appears to have δ 13C-values around −15%. or even lighter up to −20%. During the late stages of retromorphosis an enrichment in the heavy carbon isotope seems to occur resulting in δ-values between −5 and −7%. which, on the basis of 13C/12C ratios of carbonatites, kimberlites and diamonds have been taken up till now as representative for juvenile carbon. The implications of these findings are discussed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00457292

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