Analysis and compound of carbon sequestration and serpentinization from the Iberian Margin and the Northern Apennine, supplement to: Schwarzenbach, Esther; Frueh-Green, Gretchen L; Bernasconi, Stefano M; Alt, Jeffrey C; Plas, Alessio (2013): Serpentinization and carbon sequestration: A study of two ancient peridotite-hosted hydrothermal systems. Chemical Geology, 351, 115-133


Fluid circulation in peridotite-hosted hydrothermal systems influences the incorporation of carbon into the oceanic crust and its long-term storage. At low to moderate temperatures, serpentinization of peridotite produces alkaline fluids that are rich in CH4 and H2. Upon mixing with seawater, these fluids precipitate carbonate, forming an extensive network of calcite veins in the basement rocks, while H2 and CH4 serve as an energy source for microorganisms. Here, we analyzed the carbon geochemistry of two ancient peridotite-hosted hydrothermal systems: 1) ophiolites cropping out in the Northern Apennines, and 2) calcite-veined serpentinites from the Iberian Margin (Ocean Drilling Program (ODP) Legs 149 and 173), and compare them to active peridotite-hosted hydrothermal systems such as the Lost City hydrothermal field (LCHF) on the Atlantis Massif near the Mid-Atlantic Ridge (MAR).

Metadata Access
Creator Schwarzenbach, Esther;Bernasconi, Stefano M;Frueh-Green, Gretchen L;Alt, Jeffrey C;Plas, Alessio
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2016
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Collection of Datasets
Format application/zip
Discipline Earth System Research
Spatial Coverage (41N-44N,13W-10E)
Temporal Point 1993-04-02T11:59:59Z