{"xmlId":"81778","NOAAStudyId":"40691","studyName":"Han-sur-Lesse Cave, Postojna Cave Geochemical Data from 16 to -46 Cal Yr BP","doi":"https://doi.org/10.25921/nymz-qs55","uuid":"ef387164-d048-4ed5-965e-b50b015f1e21","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site."},"dataType":"SPELEOTHEMS","investigators":"Genty, D.; Vokal, B.; Obeli, B.; Massault, M.","investigatorDetails":[{"firstName":"Dominique","lastName":"Genty","initials":"D.","orcId":"0000-0002-3488-7186"},{"firstName":"Barbara","lastName":"Vokal","initials":"B.","orcId":null},{"firstName":"Bogomil","lastName":"Obeli","initials":"B.","orcId":null},{"firstName":"Marc","lastName":"Massault","initials":"M.","orcId":null}],"version":"1.0","funding":[],"studyNotes":"Data contributed as part of SISAL v3 Global Speleothem Isotope and Trace Element Database (https://doi.org/10.25921/jajq-qg60). Notes from the SISAL database: Vegetation: Deciduous and evergreen.\\\\ Entity Han-9 (SISAL entity_id = 75) has two samples (sample_id = 37484 and 37485 at depth_sample = 179.5 and 179, respectively) which had max interp_age provided to be greater than interp_age, resulting in negative interp_age_uncert_neg. The absolute value of these interp_age_uncert_neg were provided instead.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/40691","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-cave-40691.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-cave-40691.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/speleothem","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2025-01-28","entryId":"noaa-cave-40691","earliestYearBP":16,"mostRecentYearBP":-46,"earliestYearCE":1934,"mostRecentYearCE":1996,"publication":[{"author":{"name":"Genty, D.; B. Vokal; B. Obelic; M. Massault"},"pubYear":1998,"title":"Bomb 14C time history recorded in two modern stalagmites  importance for soil organic matter dynamics and bomb 14C distribution over continents","journal":"Earth and Planetary Science Letters","volume":"160","edition":null,"issue":"3-4","pages":"795-809","reportNumber":null,"citation":"Genty, D.; B. Vokal; B. Obelic; M. Massault. 1998. Bomb 14C time history recorded in two modern stalagmites  importance for soil organic matter dynamics and bomb 14C distribution over continents. Earth and Planetary Science Letters, 160(3-4), 795-809. doi: 10.1016/s0012-821x(98)00128-9","type":"publication","identifier":{"type":"doi","id":"10.1016/s0012-821x(98)00128-9","url":"http://dx.doi.org/10.1016/s0012-821x(98)00128-9"},"abstract":"Carbon 14 activity measurements made by Accelerator Mass Spectrometry on two modern stalagmites from the Han-sur-Lesse cave (Belgium) and from the Postojna Cave (Slovenia) permit the construction of 14C activity (a14C) time series over the last 50 years. A high precision chronology is given by annual laminae in the first stalagmite and by a specific mark (explosion in the Postojna Cave in 1944) in the second one. In both stalagmites, 14C activity increase due to nuclear tests in the atmosphere is remarkable. However, instead of a sharp peak like the one observed in the atmosphere around 19631964, the 14C activities of the stalagmite CaCO3 show an abrupt increase, with an offset of 110 years, followed by a high activity plateau for the Han-sur-Lesse sample and a slight decrease for the Postojna sample. For both stalagmites, the variation of the a14C amplitude between pre- and post-bomb period is much lower than the atmospheric record, which demonstrates the damping effect of the soil carbon reservoir. We have modeled the CaCO3 activities using fractionation processes between atmosphere CO2, soil CO2 and organic matter (OM), dissolved inorganic carbon and stalagmite CaCO3. In both cases studied, the model and former soil studies suggest that CO2 from soil organic matter (SOM) decomposition, which has a slow turnover (i.e. >1 y), is of major importance in winter, when the development of speleothem is the most important. Combined with the fact that 8090% of the stalagmite carbon comes from soil CO2, this produces a damping effect on the speleothem a14C. Consequently, the `geochemical time resolution', at least for speleothem carbon, is much lower than the structural resolution given by annual laminae alternations and is mainly controlled by soil carbon dynamics: a14C and ´13C are smoothed over several years. Differences between the 14C time series of the Han-sur-Lesse and Postojna stalagmites are likely to be due to the double amount of precipitation in Postojna, which produces a faster soil OM turnover and thus a `system' which is more sensitive to atmospheric changes.","pubRank":"1"},{"author":{"name":"Kaushal, Nikita, Franziska A. Lechleitner, Micah Wilhelm, Khalil Azennoud, Janica C. Bühler, Kerstin Braun, Yassine Ait Brahim, Andy Baker, Yuval Burstyn, Laia Comas-Bru, Jens Fohlmeister, Yonaton Goldsmith, Sandy P. Harrison, István G. Hatvani, Kira Rehfeld, Magdalena Ritzau, Vanessa Skiba, Heather M. Stoll, József G. Szucs, Péter Tanos, Pauline C. Treble, Vitor Azevedo, Jonathan L. Baker, Andrea Borsato, Sakonvan Chawchai, Andrea Columbu, Laura Endres, Jun Hu, Zoltán Kern, Alena Kimbrough, Koray Koç, Monika Markowska, Belen Martrat, Syed Masood Ahmad, Carole Nehme, Valdir Felipe Novello, Carlos Pérez-Mejías, Jiaoyang Ruan, Natasha Sekhon, Nitesh Sinha, Carol V. Tadros, Benjamin H. Tiger, Sophie Warken, Annabel Wolf, Haiwei Zhang, and SISAL Working Group members"},"pubYear":2024,"title":"SISALv3: a global speleothem stable isotope and trace element database","journal":"Earth System Science Data","volume":"16","edition":null,"issue":null,"pages":"1933-1963","reportNumber":null,"citation":"Kaushal, Nikita, Franziska A. Lechleitner, Micah Wilhelm, Khalil Azennoud, Janica C. Bühler, Kerstin Braun, Yassine Ait Brahim, Andy Baker, Yuval Burstyn, Laia Comas-Bru, Jens Fohlmeister, Yonaton Goldsmith, Sandy P. Harrison, István G. Hatvani, Kira Rehfeld, Magdalena Ritzau, Vanessa Skiba, Heather M. Stoll, József G. Szucs, Péter Tanos, Pauline C. Treble, Vitor Azevedo, Jonathan L. Baker, Andrea Borsato, Sakonvan Chawchai, Andrea Columbu, Laura Endres, Jun Hu, Zoltán Kern, Alena Kimbrough, Koray Koç, Monika Markowska, Belen Martrat, Syed Masood Ahmad, Carole Nehme, Valdir Felipe Novello, Carlos Pérez-Mejías, Jiaoyang Ruan, Natasha Sekhon, Nitesh Sinha, Carol V. Tadros, Benjamin H. Tiger, Sophie Warken, Annabel Wolf, Haiwei Zhang, and SISAL Working Group members. 2024. SISALv3: a global speleothem stable isotope and trace element database. Earth System Science Data, 16, 1933-1963. doi: 10.5194/essd-16-1933-2024","type":"publication","identifier":{"type":"doi","id":"10.5194/essd-16-1933-2024","url":"http://dx.doi.org/10.5194/essd-16-1933-2024"},"abstract":null,"pubRank":"2"}],"site":[{"NOAASiteId":"56811","siteName":"Han-sur-Lesse Cave","siteCode":null,"mappable":"Y","locationName":"Continent>Europe>Western Europe>Belgium","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["50.117475","5.192653"]},"properties":{"southernmostLatitude":"50.117475","northernmostLatitude":"50.117475","westernmostLongitude":"5.192653","easternmostLongitude":"5.192653","minElevationMeters":"230","maxElevationMeters":"230"}},"paleoData":[{"dataTableName":"Han-stm5b isotopes Genty1998 SISAL v3","NOAADataTableId":"54259","earliestYear":16,"mostRecentYear":-44,"timeUnit":"cal yr 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