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Os isotopic composition and Os and Re distribution in the active mound of the TAG hydrothermal system, Mid-Atlantic Ridge

Authors :
Brügmann, G. E.
Birck, J. L.
Herzig, Peter M.
Hofmann, A. W.
Source :
Proceedings of the Ocean Drilling Program: Scientific Results, 158 . pp. 91-100.
Publication Year :
1998
Publisher :
Texas A & M University, 1998.

Abstract

Drilling during ODP Leg 158 took place on the active mound of the TAG hydrothermal field on the Mid-Atlantic Ridge. The dominant mineral precipitating from the hydrothermal fluid is pyrite. Its Re and Os concentration and the Os isotopic composition provide constraints on the nature of the hydrothermal fluid circulating in the TAG mound. The 187Os/186Os ratios of massive pyrite samples vary from 4.9 to 8.9. The highest ratios have been observed in the upper part of the sulfide mountain (

Details

Database :
OpenAIRE
Journal :
Proceedings of the Ocean Drilling Program: Scientific Results, 158 . pp. 91-100.
Accession number :
edsair.od......2386..f0ed45917ed5b29f3c64f8232478df77