Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.3743
DC FieldValueLanguage
dc.contributor.authorRitter, Simon Michael-
dc.contributor.authorIsenbeck-Schröter, Margot-
dc.contributor.authorScholz, Christian-
dc.contributor.authorKeppler, Frank-
dc.contributor.authorGescher, Johannes-
dc.contributor.authorKlose, Lukas-
dc.contributor.authorSchorndorf, Nils-
dc.contributor.authorOlguín, Jerónimo Avilés-
dc.contributor.authorGonzález-González, Arturo-
dc.contributor.authorStinnesbeck, Wolfgang-
dc.date.accessioned2021-09-01T13:25:00Z-
dc.date.available2021-09-01T13:25:00Z-
dc.date.issued2019-06-04-
dc.identifier.citationBiogeosciences 16 (11): 2285-2305 (2019-06-04)de_DE
dc.identifier.issn1726-4170de_DE
dc.identifier.urihttp://hdl.handle.net/11420/10234-
dc.description.abstractUnique bell-shaped underwater speleothems were recently reported from the deep (∼ 55 m) meromictic El Zapote sinkhole (cenote) on the Yucatán Peninsula, Mexico. The local diving community has termed these speleothems as Hells Bells because of their shape and appearance in a dark environment in ∼ 28-38 m water depth above a sulfidic halocline. It was also suggested that Hells Bells form under water, yet the mystery of their formation remained unresolved. Therefore, we conducted detailed hydrogeochemical and geochemical analyses of the water column and Hells Bells speleothems including stable carbon isotopes. Based on the comprehensive results presented in this study we deduce that both biogeochemical processes in the pelagic redoxcline and a dynamic halocline elevation of El Zapote cenote are essential for Hells Bells formation. Hells Bells most likely form in the redoxcline, a narrow 1-2 m thick water layer immediately above the halocline where a pelagic chemolithoautotrophic microbial community thrives from the upward diffusion of reduced carbon, nitrogen and sulfur species released from organic matter degradation in organic-rich debris. We hypothesize that chemolithoautotrophy, in particular proton-consuming nitrate-driven anaerobic sulfide oxidation, favors calcite precipitation in the redoxcline and hence Hells Bells formation. A dynamic elevation of the halocline as a hydraulic response to droughts, annual tidal variability and recharge events is further discussed, which might explain the shape of Hells Bells as well as their occurrence over a range of 10 m water depth. Finally, we infer that highly stagnant conditions, i.e., a thick halocline, a low-light environment and sufficient input of organic material into a deep meromictic cenote are apparent prerequisites for Hells Bells formation. This might explain their exclusivity to only a few cenotes in a restricted area of the northeastern Yucatán Peninsula.en
dc.language.isoende_DE
dc.relation.ispartofBiogeosciencesde_DE
dc.rightsCC BY 4.0de_DE
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de_DE
dc.subject.ddc550: Geowissenschaftende_DE
dc.subject.ddc570: Biowissenschaften, Biologiede_DE
dc.titleSubaqueous speleothems (Hells Bells) formed by the interplay of pelagic redoxcline biogeochemistry and specific hydraulic conditions in the El Zapote sinkhole, Yucatán Peninsula, Mexicode_DE
dc.typeArticlede_DE
dc.identifier.doi10.15480/882.3743-
dc.type.diniarticle-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882.0144018-
tuhh.oai.showtruede_DE
tuhh.abstract.englishUnique bell-shaped underwater speleothems were recently reported from the deep (∼ 55 m) meromictic El Zapote sinkhole (cenote) on the Yucatán Peninsula, Mexico. The local diving community has termed these speleothems as Hells Bells because of their shape and appearance in a dark environment in ∼ 28-38 m water depth above a sulfidic halocline. It was also suggested that Hells Bells form under water, yet the mystery of their formation remained unresolved. Therefore, we conducted detailed hydrogeochemical and geochemical analyses of the water column and Hells Bells speleothems including stable carbon isotopes. Based on the comprehensive results presented in this study we deduce that both biogeochemical processes in the pelagic redoxcline and a dynamic halocline elevation of El Zapote cenote are essential for Hells Bells formation. Hells Bells most likely form in the redoxcline, a narrow 1-2 m thick water layer immediately above the halocline where a pelagic chemolithoautotrophic microbial community thrives from the upward diffusion of reduced carbon, nitrogen and sulfur species released from organic matter degradation in organic-rich debris. We hypothesize that chemolithoautotrophy, in particular proton-consuming nitrate-driven anaerobic sulfide oxidation, favors calcite precipitation in the redoxcline and hence Hells Bells formation. A dynamic elevation of the halocline as a hydraulic response to droughts, annual tidal variability and recharge events is further discussed, which might explain the shape of Hells Bells as well as their occurrence over a range of 10 m water depth. Finally, we infer that highly stagnant conditions, i.e., a thick halocline, a low-light environment and sufficient input of organic material into a deep meromictic cenote are apparent prerequisites for Hells Bells formation. This might explain their exclusivity to only a few cenotes in a restricted area of the northeastern Yucatán Peninsula.de_DE
tuhh.publisher.doi10.5194/bg-16-2285-2019-
tuhh.identifier.doi10.15480/882.3743-
tuhh.type.opus(wissenschaftlicher) Artikel-
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.issue11de_DE
tuhh.container.volume16de_DE
tuhh.container.startpage2285de_DE
tuhh.container.endpage2305de_DE
dc.rights.nationallicensefalsede_DE
dc.identifier.scopus2-s2.0-85066853129de_DE
local.status.inpressfalsede_DE
local.publisher.peerreviewedtruede_DE
item.creatorOrcidRitter, Simon Michael-
item.creatorOrcidIsenbeck-Schröter, Margot-
item.creatorOrcidScholz, Christian-
item.creatorOrcidKeppler, Frank-
item.creatorOrcidGescher, Johannes-
item.creatorOrcidKlose, Lukas-
item.creatorOrcidSchorndorf, Nils-
item.creatorOrcidOlguín, Jerónimo Avilés-
item.creatorOrcidGonzález-González, Arturo-
item.creatorOrcidStinnesbeck, Wolfgang-
item.openairetypeArticle-
item.grantfulltextopen-
item.languageiso639-1en-
item.fulltextWith Fulltext-
item.creatorGNDRitter, Simon Michael-
item.creatorGNDIsenbeck-Schröter, Margot-
item.creatorGNDScholz, Christian-
item.creatorGNDKeppler, Frank-
item.creatorGNDGescher, Johannes-
item.creatorGNDKlose, Lukas-
item.creatorGNDSchorndorf, Nils-
item.creatorGNDOlguín, Jerónimo Avilés-
item.creatorGNDGonzález-González, Arturo-
item.creatorGNDStinnesbeck, Wolfgang-
item.mappedtypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
crisitem.author.deptTechnische Mikrobiologie V-7-
crisitem.author.orcid0000-0002-1152-8754-
crisitem.author.orcid0000-0003-2766-8812-
crisitem.author.orcid0000-0002-1625-8810-
crisitem.author.parentorgStudiendekanat Verfahrenstechnik-
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