The origin of native sulphur deposits from isotope fractionation studies

Thode, H. G.; Wanless, R. K.; Wallouch, R.

doi:10.1016/0016-7037(54)90036-8

Cited by 90 publications

(19 citation statements)

References 9 publications

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“…Thode and his colleagues [6] have made an intensive survey of rela ti ve ab u ndances of 834 in sulfur from various sources and find values ranging from 4.39 to 4.19 percent, with a valu e of about 4.29 percell t reported for native sulfur from the same regio n a s the reference sample.…”

Section: Discussionmentioning

confidence: 99%

Mass spectrum of sulfur vapor

Bradt¹,

Mohler²,

Dibeler³

1956

J. RES. NATL. BUR. STAN.

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The mass spect rum of sulfur vapor has been measu red by evapo ra t in g sulfur from a heated t ube directly in to t he ionization chambe r of a mass sp ectrometer. I ons S;; w it h x ra nging fro m 1 to 8 are obse rved with St most ab unda n t. I sotopc ab undances we re comp uted f rom t he S;-ions. The appearance p otentials of S: and St are respectIvcl.v 8.9 ± 0.2 a nd 8.3 ± 0.2 electron volts. This suggests t hat t he vapor in t he ioni zation chamber is a mixture of molec ules co ntaining S2 a nd S8 and poss ibly other molecules.

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Section: Discussionmentioning

confidence: 99%

Mass spectrum of sulfur vapor

Bradt¹,

Mohler²,

Dibeler³

1956

J. RES. NATL. BUR. STAN.

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“…5), with the exception of literature data and from Pisciarelli (AP 24-9 and SP 24-9). The fractionation values (different from the value of 1.033; Thode et al, 1954), however, need accurate evaluation in the future.…”

Section: Sr and Nd Isotope Datamentioning

confidence: 95%

Native sulfur, sulfates and sulfides from the active Campi Flegrei volcano (southern Italy): Genetic environments and degassing dynamics revealed by mineralogy and isotope geochemistry

Piochi

Mormone

Balassone

et al. 2015

Journal of Volcanology and Geothermal Research

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“…Such parageneses have been described in evaporitic strata worldwide and are linked to the former presence of crude oil or methane. The carbonate minerals and native sulphur have been found to result from microbial sulphate reduction using locally derived sulphate ions and organic compounds that inWltrated the host lithology (Thode et al 1954;Feely and Kulp 1957;Davis and Kirkland 1970;Pierre and Rouchy 1988;Böttcher and ParaWniuk 1998;Peckmann et al 1999). Such secondary carbonates and native sulphur are particularly abundant in Messinian strata at diVerent sites in Sicily (Dessau et al 1962;Ziegenbalg et al 2010).…”

Section: Geological Context and Materialsmentioning

confidence: 97%

Gypsum whiskers in Messinian evaporites identified by μ-XRD2

Ziegenbalg

Berthold

Kappler

et al. 2010

Facies

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The gypsum mineralogy of hair-like, so-called whisker crystals was determined by micro X-ray diVractometry equipped with a focusing X-ray optic and a twodimensional detector ( -XRD 2 ). Gypsum whiskers typically form by eZorescence on surfaces that are in contact with water. The delicate whiskers studied here formed within a Messinian evaporite mostly consisting of anhydrite. They project from alabastrine gypsum into former cavities. The gypsum resulted from hydration of anhydrite. Whiskers were Wnally engulfed by biogenic, native sulphur, which Wlled the cavities in the course of microbial alteration of the host lithology. The sulphur protected the delicate whisker crystals from destruction, including a period of exposure to weathering on a dumping site of a former mine where the rocks have been sampled. To the best of our knowledge, this is the Wrst report of gypsum whiskers in evaporites. More signiWcantly, this study reveals that -XRD 2 has great potential for sedimentary petrology, allowing the in situ identiWcation of minute mineral phases that cannot be identiWed with conventional techniques.

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The origin of native sulphur deposits from isotope fractionation studies

Cited by 90 publications

References 9 publications

Mass spectrum of sulfur vapor

Mass spectrum of sulfur vapor

Native sulfur, sulfates and sulfides from the active Campi Flegrei volcano (southern Italy): Genetic environments and degassing dynamics revealed by mineralogy and isotope geochemistry

Gypsum whiskers in Messinian evaporites identified by μ-XRD2

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