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dc.contributor.authorGázquez, Fernando
dc.contributor.authorCalaforra, José María
dc.contributor.authorStoll, Heather
dc.contributor.authorSanna, Laura
dc.contributor.authorForti, Paolo 
dc.contributor.authorLauritzen, Stein-Erik
dc.contributor.authorDelgado, Antonio
dc.contributor.authorRull, Fernando
dc.contributor.authorMartinez-Frías, Jesús
dc.date.accessioned2024-01-31T09:58:29Z
dc.date.available2024-01-31T09:58:29Z
dc.date.issued2013
dc.identifier.urihttp://hdl.handle.net/10835/15625
dc.description.abstractThe “espada” speleothems of Cueva de las Espadas (Naica Mine, Chihuahua, Mexico) comprise a high-purity selenite core overlain by successive deposits of calcite, gypsum and aragonite. Gypsum precipitated under water from a hydrothermal solution (~58°C) when the water table was above the cave level ca. 57 ka, during the last glaciation, and some intervals during deglaciation and the Holocene. Aragonite was deposited at lower temperatures (~26°C) in a perched lake occupying the cave bottom, when the water table dropped below the cave level during brief dry intervals during deglaciation and the early Holocene. The isotopic composition of gypsum water of crystallization shows that the deglaciation–Holocene aquifer water was enriched in deuterium by 12.8–8.7‰ relative to water from the last glaciation. This is attributed to an increased relative moisture contribution from the Gulf of Mexico during deglaciation and the Holocene compared to the last glaciation. This indicates that drier conditions occurred in theNaica area during theHolocene than around 57ka. Furthermore, trace element analyses of gypsum served to deduce the circulation regime of the Naica aquifer during the past 60,000 yr, and also suggest that higher aquifer recharge occurred during the last glaciation.es_ES
dc.language.isoenes_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.sourceQuaternary Research 80 (2013) 510–521es_ES
dc.subjectGeologíaes_ES
dc.subjectMineralogíaes_ES
dc.subjectPaleoclimatologíaes_ES
dc.titleIsotope and trace element evolution of the Naica aquifer (Chihuahua,Mexico) over the past 60,000 yr revealed by speleothemses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttps://www.cambridge.org/core/journals/quaternary-research/article/abs/isotope-and-trace-element-evolution-of-the-naica-aquifer-chihuahua-mexico-over-the-past-60000-yr-revealed-by-speleothems/4BA9A91D1BEC7B87C41AF88F4DC5503Bes_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.1016/j.yqres.2013.09.004


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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