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Proceedings chapter
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Zoned sulphur isotope signatures at the Mississippi Valley-type Touissit Bou Beker, El Abed District, Morocco, Algeria: evidence for thermochemical sulphate reduction and mixing of sulphur sources

Published inMineral Deposits: Processes to Processing, Editors Stanley, C.J., p. 821-824
Presented at Proceedings of the Fifth Biennial SGA Meeting and the Tenth Quadrennial IAGOD Meeting, London, 22-25 August 1999
Publication date1999
Abstract

In the Touissit - Bou Beker - El Abed MVT district the distribution of δ³⁴S values of the main stage mineralization can be essentially interpreted as the result of mixing between a heavy and a light δ³⁴S reservoir. The results suggest that thermochemical reduction of Triassic sulphate and, possibly, pyrites disseminated in the sedimentary sequence (and/or leaching of basement sulphides) constitute the sources of the two sulphur types. A zonation with δ³⁴S values for main stage sphalerite and galena increasing systematically eastwards has been recognized at the district scale. Temperatures calculated from coexisting sphalerite-galena pairs range from 70 °C to 135 °C and are in good agreement with geological and fluid inclusion data.

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Citation (ISO format)
BOUABDELLAH, Mohammed et al. Zoned sulphur isotope signatures at the Mississippi Valley-type Touissit Bou Beker, El Abed District, Morocco, Algeria: evidence for thermochemical sulphate reduction and mixing of sulphur sources. In: Mineral Deposits: Processes to Processing. London. [s.l.] : [s.n.], 1999. p. 821–824.
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  • PID : unige:155202
ISBN905809068X
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