Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain

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dc.contributor.authorHerrero Fernández, María Josefa
dc.contributor.authorEscavy Fernández, José Ignacio
dc.contributor.authorSchreiber, B.C.
dc.date.accessioned2023-06-19T13:28:10Z
dc.date.available2023-06-19T13:28:10Z
dc.date.issued2015
dc.description.abstractSalt deposits are commonly used as indicators of different paleoclimates and sedimentary environments, as well as being geological resources of great economic interest. Ordinarily, the presence of salt deposits is related to warm and arid environmental conditions, but there are salts, like mirabilite, that form by cooling and a concentration mechanism based on cooling and/or freezing. The diagenetic transformation of mirabilite into thenardite in the upper part of the lower Miocene unit of the Tajo basin (Spain) resulted in the largest reserves of this important industrial mineral in Europe. This unit was formed in a time period ( +-18.4 Ma) that, in other basins of the Iberian Peninsula, is characterized by the existence of particular mammal assemblages appropriate to a relatively cool and arid climate. Determining the origin of the thenardite deposits as related to the diagenetic alteration of a pre-existing mirabilite permits the establishment and characterization of the sedimentary environment where it was formed and also suggests use as a possible analog with comparable deposits from extreme conditions such as Antarctica or Mars.
dc.description.departmentDepto. de Mineralogía y Petrología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipUniversidad Complutense de Madrid. Fundación General
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/28464
dc.identifier.doi10.5194/cp-11-1-2015
dc.identifier.issn1814-9332
dc.identifier.officialurlhttp://www.clim-past.net/volumes_and_issues.html
dc.identifier.urihttps://hdl.handle.net/20.500.14352/33792
dc.issue.number1
dc.journal.titleClimate of the past
dc.language.isoeng
dc.page.final13
dc.page.initial1
dc.publisherCopernicus Publications on behalf of the European Geosciences Union.
dc.relation.projectID396/2009-4153239
dc.relation.projectID139/2014-4155418
dc.rights.accessRightsopen access
dc.subject.cdu551.58:551.782.1(460.27)
dc.subject.cdu(460.27)551.58:551.782.1
dc.subject.keywordCool weather
dc.subject.keywordMirabillite
dc.subject.keywordThenardite
dc.subject.keywordLower Miocene
dc.subject.keywordMadrid basin
dc.subject.keywordClimate indicator
dc.subject.ucmPetrología
dc.titleThenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain
dc.typejournal article
dc.volume.number11
dspace.entity.typePublication
relation.isAuthorOfPublicationb75de162-8f05-4978-b0da-5d187dafd6d0
relation.isAuthorOfPublication.latestForDiscoveryb75de162-8f05-4978-b0da-5d187dafd6d0
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