Isotope geochemistry of waters affected by mining activities in Sierra Minera and Portman Bay (SE, Spain)

Simple item page
dc.contributor.authorGarcía Lorenzo, María De La Luz
dc.contributor.authorMartínez Sánchez, María José
dc.contributor.authorPérez Sirvent, Carmen
dc.contributor.authorAgudo, Inés
dc.contributor.authorRecio, Clemente
dc.date.accessioned2023-06-19T13:41:21Z
dc.date.available2023-06-19T13:41:21Z
dc.date.issued2014-12
dc.description.abstractThe objective of this work was to evaluate processes affecting waters from Portman Bay by way of stable isotopic analysis, particularly H and O stable isotopes from water and S and O from dissolved sulfates. In addition, surface waters from Sierra Minera were examined for the purpose of determining if these waters are affected by similar processes. The results obtained indicate that Portman Bay waters are meteoric, and marine infiltration only takes place in the deepest layers near the shore or if water remains stagnated in sediments with low permeability. The main source of sulfate was the oxidation of sulfides, resulting in the liberation of acid, sulfate and metals. In order to assess the mechanism responsible for sulfide oxidation, the stoichiometric isotope balance model and the general isotope balance model were tested, suggesting that the oxidation via Fe3+ was predominant in the surface, and controlled by Acidithiobacillus ferrooxidans, while at depth, sulfate reduction occurred.
dc.description.departmentDepto. de Mineralogía y Petrología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/63575
dc.identifier.doi10.1016/j.apgeochem.2014.10.002
dc.identifier.issn0883-2927
dc.identifier.officialurlhttps://www.sciencedirect.com/journal/applied-geochemistry/vol/51/suppl/C
dc.identifier.relatedurlhttps://www.elsevier.com/locate/apgeochem
dc.identifier.urihttps://hdl.handle.net/20.500.14352/34268
dc.journal.titleApplied Geochemistry
dc.language.isoeng
dc.page.final147
dc.page.initial139
dc.publisherElsevier
dc.rights.accessRightsrestricted access
dc.subject.cdu550.4
dc.subject.ucmGeoquímica
dc.subject.unesco2503 Geoquímica
dc.titleIsotope geochemistry of waters affected by mining activities in Sierra Minera and Portman Bay (SE, Spain)
dc.typejournal article
dc.volume.number51
dspace.entity.typePublication
relation.isAuthorOfPublicationeaa7540f-1da5-415c-a340-11293d2fccbe
relation.isAuthorOfPublication.latestForDiscoveryeaa7540f-1da5-415c-a340-11293d2fccbe
Download
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Isotope geochemistry of waters.pdf
Size:
1.74 MB
Format:
Adobe Portable Document Format
Download
Collections
Artículos