PANGAEA_995230 Stable isotope records of stalagmite the Rei do Mato stalagmite REI 7-2 Ampuero Grandez, Angela; Stríkis, Nicolas M; Meckler, Anna Nele; Krüger, Yves; Vuille, Mathias; Vonhof, Hubert B; Pasqualetto, Leonardo; Mayta, Victor; M Medina, N Melissa; Utida, Giselle; Zhang, Haiwei; Cheng, Hai; Edwards, R Lawrence; Travassos, Luiz; Piacsek, Patricia; Akabane, Thomas K; Cruz, Francisco William Stable isotope records of stalagmite the Rei do Mato stalagmite REI 7-2 2026-06-05 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.995230 Investigator Angela Ampuero Grandez angela.ampuero@gmail.com Earth Science Sample ID DISTANCE AGE Age model δ18O, calcite δ180, calcite, error δ13C, calcite δ13C, calcite, error DATE/TIME geoscientificInformation Brazil Carbon and oxygen stable isotopes Deglaciation Fluid inclusion fluid inclusion microthermometry last glacial termination LGM REI_7-2 speleothem Speleothem sample stalagmite Temperature tropics Mean values 95% Confidence interval, upper limit 95% Confidence interval, lower limit Mass spectrometer Thermo Finnigan DELTA plus Advantage 2018-04-12 2023-05-09 Complete -19.5 -19.5 -44.28 -44.28 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 6584 data points text/tab-separated-values Ampuero, Angela; Stríkis, Nicolas M; Meckler, Anna Nele; Krüger, Yves; Vuille, Mathias; Vonhof, Hubert B; Pasqualetto, Leonardo; Mayta, Víctor C; M Medina, N Melissa; Utida, Giselle; Zhang, Haiwei; Cheng, Hai; Edwards, R Lawrence; Travassos, L E P; Piacsek, Patricia; Akabane, Thomas K; Cruz, Francisco William (2026): Rapid warming in South America during the last deglaciation. Nature Communications, https://doi.org/10.1038/s41467-026-74093-x Cheng, Hai; Edwards, R Lawrence; Shen, Chuan-Chou; Polyak, Victor J; Asmerom, Yemane; Woodhead, Jon D; Hellstrom, John C; Wang, Yongjin; Kong, Xinggong; Spötl, Christoph; Wang, Xianfeng; Alexander, E Calvin (2013): Improvements in 230Th dating, 230Th and 234U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry. Earth and Planetary Science Letters, 371-372, 82-91, https://doi.org/10.1016/j.epsl.2013.04.006 Edwards, R Lawrence; Chen, J H; Wasserburg, Gerald J (1987): 238U-234U-230Th-232Th systematics and the precise measurement of time over the past 500,000 years. Earth and Planetary Science Letters, 81(2-3), 175-192, https://doi.org/10.1016/0012-821X(87)90154-3 Krüger, Yves; Marti, Dominik; Staub, Rita Hidalgo; Fleitmann, Dominik; Frenz, Martin (2011): Liquid–vapour homogenisation of fluid inclusions in stalagmites: Evaluation of a new thermometer for palaeoclimate research. Chemical Geology, 289(1-2), 39-47, https://doi.org/10.1016/j.chemgeo.2011.07.009 Krüger, Yves; Pasqualetto, Leonardo; Fernandez, Alvaro; Cobb, Kim M; Meckler, Anna Nele (2025): Tropical temperature evolution across two glacial cycles derived from speleothem fluid inclusion microthermometry. Climate of the Past, 21(9), 1553-1584, https://doi.org/10.5194/cp-21-1553-2025 Richards, David A (2003): Uranium-series Chronology and Environmental Applications of Speleothems. Reviews in Mineralogy & Geochemistry, 52(1), 407-460, https://doi.org/10.2113/0520407 Scholz, Denis; Hoffmann, Dirk L (2011): StalAge – An algorithm designed for construction of speleothem age models. Quaternary Geochronology, 6(3-4), 369-382, https://doi.org/10.1016/j.quageo.2011.02.002

This dataset presents a cave paleotemperature reconstruction over the last glacial termination from stalagmite REI 7-2 from Rei do Mato Cave in Minas Gerais State, central-eastern South America (19.50°S, 44.28°W, 800 masl). Sample aliquots of 100 to 200 μg were prepared with a microsampler (Sherline, model 5400) with a sampling resolution of 0.4 mm. Analyses were performed on a Thermo Finnigan Delta Plus Advantage IRMS fitted with a Finnigan Gas-Bench II automatic sample preparation system at the Stable Isotope Laboratory at the Institute of Geoscience of the University of São Paulo (Brazil). Isotope values are reported as δ13Cc and δ18Oc in ‰ relative to VPDB, with standard reproducibility (1σ) better than 0.1 ‰ in both cases. The final isotope profile after the cleanup of erroneous values comprises 933 data points for δ18Oc and 933 for δ13Cc. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995230"!

http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME http://en.wikipedia.org/wiki/Kyr AGE https://doi.org/10.1016/0012-821X(87)90154-3 238U-234U-230Th-232Th systematics and the precise measurement of time over the past 500,000 years https://doi.org/10.1016/j.chemgeo.2011.07.009 Liquid–vapour homogenisation of fluid inclusions in stalagmites: Evaluation of a new thermometer for palaeoclimate research https://doi.org/10.1016/j.epsl.2013.04.006 Improvements in 230Th dating, 230Th and 234U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry https://doi.org/10.1016/j.quageo.2011.02.002 StalAge – An algorithm designed for construction of speleothem age models https://doi.org/10.1038/s41467-026-74093-x Rapid warming in South America during the last deglaciation https://doi.org/10.2113/0520407 Uranium-series Chronology and Environmental Applications of Speleothems https://doi.org/10.5194/cp-21-1553-2025 Tropical temperature evolution across two glacial cycles derived from speleothem fluid inclusion microthermometry DIF 9.4 2026-06-05 2026-09-23