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dc.contributor.authorEvans, Nicholas
dc.contributor.authorBauska, Thomas
dc.contributor.authorGázquez-Sánchez, Fernando
dc.contributor.authorBrenner, Mark
dc.contributor.authorCurtis, Jason H
dc.contributor.authorHodell, David
dc.date.accessioned2018-11-01T14:04:12Z
dc.date.available2018-11-01T14:04:12Z
dc.date.issued2018-08-03
dc.identifier.issn0036-8075
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/284540
dc.description.abstractThe demise of Lowland Classic Maya civilization during the Terminal Classic Period (~800 to 1000 CE) is a well-cited example of how past climate may have affected ancient societies. Attempts to estimate the magnitude of hydrologic change, however, have met with equivocal success because of the qualitative and indirect nature of available climate proxy data. We reconstructed the past isotopic composition (δ18O, δD, 17O-excess, and d-excess) of water in Lake Chichancanab, Mexico, using a technique that involves isotopic analysis of the structurally bound water in sedimentary gypsum, which was deposited under drought conditions. The triple oxygen and hydrogen isotope data provide a direct measure of past changes in lake hydrology. We modeled the data and conclude that annual precipitation decreased between 41 and 54% (with intervals of up to 70% rainfall reduction during peak drought conditions) and that relative humidity declined by 2 to 7% compared to present-day conditions.
dc.description.sponsorshipERC 339694 (Water Isotopes of Hydrated Minerals)
dc.format.mediumPrint
dc.languageeng
dc.publisherAmerican Association for the Advancement of Science (AAAS)
dc.subjectCivilization
dc.subjectHistory, Ancient
dc.subjectMexico
dc.subjectDroughts
dc.subjectLakes
dc.titleQuantification of drought during the collapse of the classic Maya civilization.
dc.typeArticle
prism.endingPage501
prism.issueIdentifier6401
prism.publicationDate2018
prism.publicationNameScience
prism.startingPage498
prism.volume361
dc.identifier.doi10.17863/CAM.31914
dcterms.dateAccepted2018-06-26
rioxxterms.versionofrecord10.1126/science.aas9871
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-08
dc.contributor.orcidBauska, Thomas [0000-0003-1901-0367]
dc.contributor.orcidGázquez-Sánchez, Fernando [0000-0001-8258-1352]
dc.contributor.orcidCurtis, Jason H [0000-0003-0884-9941]
dc.contributor.orcidHodell, David [0000-0001-8537-1588]
dc.identifier.eissn1095-9203
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Research Council (339694)
rioxxterms.freetoread.startdate2019-02-03


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