PuSH - Publikationsserver des Helmholtz Zentrums München

Fritz, P. ; Fontes, J.-C. ; Frape, S.K. ; Louvat, D. ; Michelot, L. ; Balderer, W.

The Isotope Geochemistry of Carbon in Groundwater at Stripa.

Geochim. Cosmochim. Acta 53, 1765-1775 (1989)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The carbon isotopic composition of the total dissolved inorganic carbon in groundwater associated with a granitic pluton at Stripa (Sweden) reflects both inorganic and organic carbon sources. Following the uptake of soil carbon-dioxide, calcite dissolution dominates the geochemical evolution of shallow groundwater. Calcite saturation is reached at a depth of about 100 m. In deeper waters geochemical release of Ca and increasing pH cause calcite precipitation. Radiocarbon contents suggest carbon (and water ?) ages in excess of 20 000 years for waters at 300–400 m depth. In deep groundwaters with enhanced salinities organic carbon is added to the dissolved inorganic carbon either through bacterial activity (e.g, sulphate reducing bacteria) or the oxidation of organic compounds such as methane. The lowest radiocarbon contents were measured at the 300–400 meter levels and not in the deepest fluids. The distribution of 13C in the deep groundwaters suggests the existence of well-defined flowsystems with limited active hydraulic interaction. Isotope analyses on fracture calcites substantiate the complex geochemical history of the pluton.
Altmetric
Weitere Metriken?
[➜Einloggen]
Zusatzinfos bearbeiten [➜Einloggen]
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
ISSN (print) / ISBN 0016-7037
e-ISSN 1872-9533
Zeitschrift Geochimica et Cosmochimica Acta
Quellenangaben Band: 53, Heft: 8, Seiten: 1765-1775 Artikelnummer: , Supplement: ,
Verlag Elsevier
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Groundwater Ecology (IGOE)