PANGAEA_968796 Bulk organic δ13C of sediment core LMAHA-18 from lake Mahasarika, northern Madagascar Montade, Vincent; Behling, Hermann; Bremond, Laurent; Rouland, Sylvie; Daut, Gerhard; Kasper, Thomas; Favier, Charly Bulk organic δ13C of sediment core LMAHA-18 from lake Mahasarika, northern Madagascar 2024-09-23 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.968796 Investigator Vincent Montade vincent.montade@umontpellier.fr Earth Science DEPTH, sediment/rock AGE δ13C geoscientificInformation Core isotope Lake sediment LMAHA-18 macroscopic charcoal Madagascar Magnetic susceptibility Sediment core δ13C analysis see description in data abstract Complete -12.53509 -12.53509 49.17701 49.17701 0.005 m (DEPTH, sediment/rock) 4.631 m (DEPTH, sediment/rock) 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 24 data points text/tab-separated-values Montade, Vincent; Bremond, Laurent; Teixeira, Helena; Kasper, Thomas; Daut, Gerhard; Rouland, Sylvie; Rasoamanana, Elysée; Ramavovolona, Perle; Favier, Charly; Arnaud, Fabien; Radespiel, Ute; Behling, Hermann (2024): Montane rainforest dynamics under changes in climate and human impact during the past millennia in northern Madagascar. Royal Society Open Science, 11(8), 230930, https://doi.org/10.1098/rsos.230930

The datasets provided here correspond to sedimentary charcoal counts, magnetic susceptibility measurements, and δ13C isotopic measurements obtained from a lacustrine sediment core recovered from Lake Maharasika in Montagne d'Ambre (northern Madagascar, 1,073 m asl). Fieldwork has been carried out in August 2018. The sediment core LMAHA-18 was taken from the central and deepest part of the lake (7 m water depth; 12.53509S, 49.17701E). Core LMAHA-18 was sampled with a Livingstone piston sediment corer operated from a small platform settled on two rubber boats. Using sampling tubes of ca. 5 cm diameter and 120 cm length, a total of 6 sections of about 100 cm sediment length were sampled with overlaps of 10-50 cm length. Preserved in aluminium tubes for transport to the laboratory, sediment was extruded from each aluminium tube and split into two sister cores, LMAHA-18a and LMAHA-18b. Each sister core was stored under cool (4°C) and dark conditions at the laboratory facilities (LMAHA-18a at the Friedrich-Schiller-University Jena and LMAHA-18b at the University of Goettingen, Germany). Bulk organic δ13C was measured against certified standards (L-Prolin, EDTA and USG65) and reported in standard δ notation (‰) against Vienna Pee Dee Belemnite (VPDB) and Air, respectively. Relative errors based on triplicate measurements are 0.05 ‰ for δ13C. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.968796"!

http://en.wikipedia.org/wiki/Kyr AGE https://doi.org/10.1098/rsos.230930 Montane rainforest dynamics under changes in climate and human impact during the past millennia in northern Madagascar DIF 9.4 2024-09-23 2024-10-22