The Petrology and Sulphur Isotopic Composition of Sulphide and Sulphate in the Kimberley Kimberlites

This work presents the results of sulphur isotopic analyses conducted on 130 samples of sulphides and 50 samples of sulphates, collected in different parts of the Lubin mine. Simple copper sulphides contain isotopically very light sulphur. For digenite average value of δ34S was found to be –35,9‰, and for chalcocite –32,0‰. Bornite also has low value of δ34S, on average –31,7‰. Slightly higher values were found for chalcopyrite and covellite: –29,6 and –27,9‰ on average. The heaviest sulphur is in tennantite–tetrahedrite series: –9,3‰. Sphalerite and galena also have isotopically light sulphur, –27,1 and –25,4‰, respectively. The lightest isotopic composition of sulphur was found in pyrite and marcasite (–37,9‰). There were found consistent differences in the isotopic composition of sulphides depending on their formation and localization in the deposit. Barite from the Lubin mine is shows higher values of δ34S: 12,3‰ on average, similarly to gypsum and anhydrite: 12,1‰. All those minerals have lighter composition when they occur in veins with sulphides comparing those in barren veins. Weathering sulphates – chalcantite and epsomite have the lowest values of δ34S, similar to the composition of copper sulphides.

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The Sulphur Isotopic Composition of Neoproterozoic to Early Cambrian Seawater — Evidence from the Cyclic Hanseran Evaporites, NW India

Mineralogical Magazine ◽

10.1180/minmag.1998.62a.3.103 ◽

1998 ◽

Vol 62A (3) ◽

pp. 1467-1468 ◽

Cited By ~ 3

Author(s):

H. Strauss

Keyword(s):

Isotopic Composition ◽

Early Cambrian ◽

Sulphur Isotopic Composition

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Sulphur isotopic composition in the Palaeogene coal of Japan

International Journal of Coal Geology ◽

10.1016/0166-5162(90)90051-y ◽

1990 ◽

Vol 15 (3) ◽

pp. 191-217 ◽

Cited By ~ 7

Author(s):

Toshio Shimoyama ◽

Kenichi Yamazaki ◽

Azuma Iijima

Keyword(s):

Isotopic Composition ◽

Sulphur Isotopic Composition

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Investigation of the use of filter packs to measure the sulphur isotopic composition of volcanic sulphur dioxide and the sulphur and oxygen isotopic composition of volcanic sulphate aerosol

Atmospheric Environment ◽

10.1016/j.atmosenv.2008.01.052 ◽

2008 ◽

Vol 42 (19) ◽

pp. 4611-4618 ◽

Cited By ~ 8

Author(s):

T.A. Mather ◽

D.M. Pyle ◽

T.H.E. Heaton

Keyword(s):

Isotopic Composition ◽

Sulphur Dioxide ◽

Oxygen Isotopic Composition ◽

Sulphate Aerosol ◽

Oxygen Isotopic ◽

Sulphur Isotopic Composition

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Sulphur-isotopic composition of the deep-sea mussel Bathymodiolus marisindicus from currently active hydrothermal vents in the Indian Ocean

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315403007872h ◽

2003 ◽

Vol 83 (4) ◽

pp. 841-848 ◽

Cited By ~ 12

Author(s):

Toshiro Yamanaka ◽

Chitoshi Mizota ◽

Yoshihiro Fujiwara ◽

Hitoshi Chiba ◽

Jun Hashimoto ◽

...

Keyword(s):

Indian Ocean ◽

Isotopic Composition ◽

Hydrothermal Vents ◽

Soft Tissues ◽

Electron Microscopic Observation ◽

Electron Microscopic ◽

Worldwide Distribution ◽

Close Relationship ◽

The Indian Ocean ◽

Sulphur Isotopic Composition

Sulphur-isotopic composition of soft tissues from Bathymodiolusmarisindicus collected from hydrothermal vents in the Indian Ocean was reported. The δ34S values of the soft tissues (+3∼+5‰ vs Cañyon Diablo troilite) were nearly identical to those from the associated hydrothermal fluid and chimney sulphides (+5 to +8‰), but were significantly different from that of the common seawater sulphate (+21‰), which suggested that the endosymbiotic bacteria used sulphide in the fluid as an energy source. Transmission electron microscopic observation of the endosymbionts also suggested that the symbiont is a thioautotroph. Bathymodiolus species, which depend on either sulphide or methane oxidation, or both, have a worldwide distribution. Bathymodiolus marisindicus from the Indian Ocean has a close relationship with congeners in the Pacific Ocean as evidenced by form of symbiosis. Biogeography and migration of the genus Bathymodiolus based on the relevant data are briefly discussed.

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