Inorganic and biogenic As-sulfide precipitation at seafloor hydrothermal fields

Vesselin M. Dekov, Luca Bindi, Gaëtan Burgaud, Sven Petersen, Dan Asael, Vanessa Rédou, Yves Fouquet, Bernhard Pracejus

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We investigated As-sulfides (orpiment, As2S3 and realgar, As4S4) from four seafloor hydrothermal fields: three from back-arc and one from mid-ocean ridge settings. Our studies suggest two different modes of As-sulfide precipitation at the seafloor hydrothermal sites: inorganic and biogenic. The Eh-pH modeling shows that the most stable As-sulfide at low-temperature (T2S3. This process of fungal orpiment precipitation is a mechanism of bio-sequestration of hydrothermal As and another mode of soft-tissue fossilization not described so far.

Original languageEnglish
Pages (from-to)28-38
Number of pages11
JournalMarine Geology
Volume342
DOIs
Publication statusPublished - Aug 1 2013

Fingerprint

Sulfides
seafloor
sulfide
realgar
fossilization
mid-ocean ridge
Tissue
modeling
Temperature
arsenic trisulfide

Keywords

  • Fungi
  • Modeling
  • Orpiment
  • Realgar
  • Submarine hydrothermal

ASJC Scopus subject areas

  • Oceanography
  • Geochemistry and Petrology
  • Geology

Cite this

Inorganic and biogenic As-sulfide precipitation at seafloor hydrothermal fields. / Dekov, Vesselin M.; Bindi, Luca; Burgaud, Gaëtan; Petersen, Sven; Asael, Dan; Rédou, Vanessa; Fouquet, Yves; Pracejus, Bernhard.

In: Marine Geology, Vol. 342, 01.08.2013, p. 28-38.

Research output: Contribution to journalArticle

Dekov, VM, Bindi, L, Burgaud, G, Petersen, S, Asael, D, Rédou, V, Fouquet, Y & Pracejus, B 2013, 'Inorganic and biogenic As-sulfide precipitation at seafloor hydrothermal fields', Marine Geology, vol. 342, pp. 28-38. https://doi.org/10.1016/j.margeo.2013.06.006
Dekov VM, Bindi L, Burgaud G, Petersen S, Asael D, Rédou V et al. Inorganic and biogenic As-sulfide precipitation at seafloor hydrothermal fields. Marine Geology. 2013 Aug 1;342:28-38. https://doi.org/10.1016/j.margeo.2013.06.006
Dekov, Vesselin M. ; Bindi, Luca ; Burgaud, Gaëtan ; Petersen, Sven ; Asael, Dan ; Rédou, Vanessa ; Fouquet, Yves ; Pracejus, Bernhard. / Inorganic and biogenic As-sulfide precipitation at seafloor hydrothermal fields. In: Marine Geology. 2013 ; Vol. 342. pp. 28-38.
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