noaa-cave-40135 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2025-02-20 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Anjohibe Geochemical Data from 1700 to -64 Cal Yr BP 2024-09-02 publication doi:10.25921/q878-8540 noaa-cave-40135 NCEI DSI 1200_02 NCEI DSI 1200_01 Burns, S.J. originator Burns, S.J. author Godfrey, L.R. originator Godfrey, L.R. author Faina, P. originator Faina, P. author McGee, D. originator McGee, D. author Hardt, B.F. originator Hardt, B.F. author Ranivoharimanana, L. originator Ranivoharimanana, L. author Randrianasy, J. originator Randrianasy, J. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Cave. The data include parameters of speleothems with a geographic location of Madagascar. The time period coverage is from 1672 to -64 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past temperature, precipitation, and other aspects of climate derived from mineral deposits found in caves. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-cave.png Paleoclimatology - Speleothem PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Land Records > Cave Deposits Earth Science > Climate Indicators > Paleoclimate Indicators > Speleothems Earth Science > Paleoclimate > Land Records > Cave Deposits theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems > carbon isotopes earth science > paleoclimate > speleothems > oxygen isotopes theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian What: sample thickness; Material: null What: age; Material: null What: delta 18O; Material: calcite What: depth; Material: null What: delta 13C; Material: calcite theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Ocean > Indian Ocean > Madagascar > Anjohibe > LATITUDE -15.53 > LONGITUDE 46.88 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Burns, S.J.; Godfrey, L.R.; Faina, P.; McGee, D.; Hardt, B.F.; Ranivoharimanana, L.; Randrianasy, J. (2024-09-02): NOAA/WDS Paleoclimatology - Anjohibe Geochemical Data from 1700 to -64 Cal Yr BP. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/q878-8540. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose otherRestrictions None otherRestrictions 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. Rapid human-induced landscape transformation in Madagascar at the end of the first millennium of the Common Era 2016 publication Burns, Stephen J.; Laurie R. Godfrey; Peterson Faina; David McGee; Ben Hardt; Lovasoa Ranivoharimanana; Jeannot Randrianasy author Quaternary Science Reviews publisher https://doi.org/10.1016/j.quascirev.2016.01.007 HTTPS Web Browser Associated Reference published 2016 Burns, Stephen J.; Laurie R. Godfrey; Peterson Faina; David McGee; Ben Hardt; Lovasoa Ranivoharimanana; Jeannot Randrianasy, 2016: Rapid human-induced landscape transformation in Madagascar at the end of the first millennium of the Common Era. Quaternary Science Reviews, 134, 92-99, 10.1016/j.quascirev.2016.01.007 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1672 cal yr BP to -64 cal yr BP; 46.88 46.88 -15.53 -15.53 Study Coordinates -15.53 46.88 278 2014 STUDY NOTES: 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: Geology: Limestone near the base of the karst grading upwards into dolomite. A lower resolution record from stalagmite AB2 was published in Burns et al., 2016 but was superseded by Scroxton et al., 2017 - including an enhanced age model. \\ Entity AB2, AB3 (SISAL entity_id = 188, 187): Data shown in paper and online at NOAA are either raw values or corrected to aragonite. Data deposited in SISAL has been corrected to calcite, by the original author, to facilitate comparisons. Conversion made using -0.7 for d18O and -2.5 for d13C for 100% aragonite to calcite. \\ AB2 (entity_id = 188): Mixed mineralogy has been converted as a proportion of the mineralogies present, measured by XRD and XRF: 29% calcite between 90.5 (sample_id = 388296) and 105.1mm (sample_id = 388360) and 24% calcite between 1029.2 (sample_id = 388918) and 1096.2mm (sample_id = 388947).\\ Entity ABC-1(entity_id = 738): Dating material: aragonite vs. calcite was determined uding Mg/Ca and Sr/Ca ratios (higher Mg/Ca=calcite, higher Sr/Ca=aragonite), the date at 21.5mm depth is close to the boundary between the two, trace element analyses were not continued to the base of the sample where the age at 62mm depth was measured. ABSTRACT SUPPLIED BY ORIGINATOR: The environmental impact of the early human inhabitants of Madagascar remains heavily debated. We present results from a study using two stalagmites collected from Anjohibe Cave in northwestern Madagascar to investigate the paleoecology and paleoclimate of northwestern Madagascar over the past 1800 years. Carbon stable isotopic data indicate a rapid, complete transformation from a flora dominated by C3 plants to a C4 grassland system. This transformation is well replicated in both stalagmites, occurred at 890 CE and was completed within one century. We infer that the change was the result of a dramatic increase in the use of fire to promote the growth of grass for cattle fodder. Further, stalagmite oxygen isotope ratios show no significant variation across the carbon isotope excursion, demonstrating that the landscape transformation was not related to changes in precipitation. Our study illustrates the profound impact early inhabitants had on the environment, and implies that forest loss was one trigger of megafaunal extinction. 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Native Format(s) https://doi.org/10.25921/q878-8540 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/40135 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/speleothem HTTPS Information NCEI Cave Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/speleothem/SISAL-v3/noaa_templates/Burns2016-AB3.txt HTTPS Download /speleothem/SISAL-v3/noaa_templates/Burns2016-AB3.txt Speleothem download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21