noaa-ocean-29512 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 2023-09-01 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Blackwood Sinkhole, Bahamas 3,000 Year Plant Wax Isotope Data 2020-04-17 publication doi:10.25921/9wng-vh09 noaa-ocean-29512 NCEI DSI 1200_02 NCEI DSI 1200_01 Tamalavage, A.E. originator Tamalavage, A.E. author van Hengstum, P.J. originator van Hengstum, P.J. author Louchouarn, P. originator Louchouarn, P. author Fall, P.L. originator Fall, P.L. author Donnelly, J.P. originator Donnelly, J.P. author Albury, N.A. originator Albury, N.A. author Coats, S. originator Coats, S. author Feakins, S.J. originator Feakins, S.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 Paleoceanography. The data include parameters of paleolimnology with a geographic location of Bahamas, Caribbean Sea. The time period coverage is from 2945 to -60 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 climate and ocean circulation derived from marine sediments. 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-ocean.png Paleoclimatology - Paleoceanography PNG Earth Science > Paleoclimate > Ocean/Lake Records Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records 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 > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > paleolimnology > hydrogen isotopes earth science > paleoclimate > paleolimnology > geochemistry earth science > paleoclimate > paleolimnology > carbon 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: C29 n-alkanoic acid; Material: sediment What: delta 2H; Material: C24 n-alkanoic acid What: delta 2H; Material: C26 n-alkanoic acid What: delta 2H; Material: C28 n-alkanoic acid What: delta 2H; Material: precipitation What: depth; Material: null What: average chain length; Material: n-alkanoic acid What: delta 2H; Material: C30 n-alkanoic acid What: delta 13C; Material: C28 n-alkanoic acid What: C28 n-alkane; Material: sediment What: C30 n-alkane; Material: sediment What: average chain length; Material: n-alkane What: carbon preference index; Material: n-alkane What: C24 n-alkanoic acid; Material: sediment What: C31 n-alkanoic acid; Material: sediment What: delta 13C; Material: C30 n-alkanoic acid What: C27 n-alkane; Material: sediment What: C23 n-alkanoic acid; Material: sediment What: C25 n-alkanoic acid; Material: sediment What: chain length index; Material: n-alkanoic acid What: delta 2H; Material: C24 n-alkanoic acid What: delta 2H; Material: C28 n-alkanoic acid What: delta 13C; Material: C26 n-alkanoic acid What: delta 13C; Material: C30 n-alkanoic acid What: age; Material: null What: C30 n-alkanoic acid; Material: sediment What: C29 n-alkane; Material: sediment What: C32 n-alkane; Material: sediment What: C33 n-alkane; Material: sediment What: C28 n-alkanoic acid; Material: sediment What: organic compound index; Material: sediment What: C22 n-alkanoic acid; Material: sediment What: delta 2H; Material: C26 n-alkanoic acid What: delta 2H; Material: C28 n-alkanoic acid What: delta 2H; Material: C30 n-alkanoic acid What: delta 13C; Material: C24 n-alkanoic acid What: delta 13C; Material: C24 n-alkanoic acid What: chain length index; Material: n-alkane What: C26 n-alkanoic acid; Material: sediment What: C27 n-alkanoic acid; Material: sediment What: carbon preference index; Material: n-alkanoic acid What: delta 13C; Material: C26 n-alkanoic acid What: delta 13C; Material: C28 n-alkanoic acid What: C31 n-alkane; Material: sediment What: delta 2H; Material: precipitation 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 > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Bahamas > Blackwood Sinkhole > LATITUDE 26.79 > LONGITUDE -77.42 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: Tamalavage, A.E.; van Hengstum, P.J.; Louchouarn, P.; Fall, P.L.; Donnelly, J.P.; Albury, N.A.; Coats, S.; Feakins, S.J. (2020-04-17): NOAA/WDS Paleoclimatology - Blackwood Sinkhole, Bahamas 3,000 Year Plant Wax Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/9wng-vh09. 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. Plant wax evidence for precipitation and vegetation change from a coastal sinkhole lake in the Bahamas spanning the last 3,000 years 2020 publication Anne E. Tamalavage, Peter J. van Hengstum, Patrick Louchouarn, Patricia L. Fall, Jeffrey P. Donnelly, Nancy A. Albury, Sloan Coats, Sarah J. Feakins author Organic Geochemistry publisher https://doi.org/10.1016/j.orggeochem.2020.104120 HTTPS Web Browser Associated Reference published 2020 Anne E. Tamalavage, Peter J. van Hengstum, Patrick Louchouarn, Patricia L. Fall, Jeffrey P. Donnelly, Nancy A. Albury, Sloan Coats, Sarah J. Feakins, 2020: Plant wax evidence for precipitation and vegetation change from a coastal sinkhole lake in the Bahamas spanning the last 3,000 years. Organic Geochemistry, , , 10.1016/j.orggeochem.2020.104120 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 2945 cal yr BP to -60 cal yr BP; -77.42 -77.42 26.79 26.79 Study Coordinates 26.79 -77.42 -995 2010 STUDY NOTES: Biomarker and isotopic data and precipitation d2H reconstruction from Blackwood Sinkhole, Abaco Island, Northern Bahamas, for the past 3,000 years. ABSTRACT SUPPLIED BY ORIGINATOR: Plant wax hydrogen isotopic composition is commonly used to reconstruct the hydrogen isotopic composition of precipitation used by terrestrial vegetation. However, mangroves growing in coastal environments take up a mixture of freshwater and seawater. Biosynthetic fractionation (between source water and plant wax) differs between plant types and as a function of salinity, potentially complicating interpretations of past precipitation in coastal environments. In order to reconstruct Holocene hydrologic and ecologic changes archived within sediments from Blackwood Sinkhole on Abaco Island in The Bahamas, we adopt a multi-proxy approach using plant wax hydrogen isotopic composition (d2H) to reconstruct paleohydrology, together with plant wax carbon isotopic composition (d13Cwax), sterol biomarkers and pollen abundances to identify vegetation change. When pollen indicates a stable terrestrial plant community (2,950 to 850 cal yrs BP), variations of d2H values measured on the plant wax C28 n-alkanoic acid are interpreted in terms of precipitation isotope (d2Hprecip) changes, with 2H-depletion from 2,950 to ~2,100 cal yrs BP and ~1,700 to 1,000 cal yrs BP. However, interpretation is complicated at 850 cal yrs BP, when d2H values decrease (-50 per mil) concurrent with increased Laguncularia racemosa (white mangrove) and Conocarpus erectus (buttonwood mangrove), and the mangrove-derived biomarker, taraxerol. We develop a pollen-based correction for mangrove inputs, yielding reconstructed precipitation isotope estimates (d2Hprecip-corr). Low d2Hprecip-corr values are synchronous with increased abundance of pine pollen, both of which may indicate wetter conditions from 850 cal yrs BP to present. This study provides additional evidence that mangroves can complicate hydrologic reconstructions from n-alkyl terrestrial plant wax biomarkers, and that such complication can be removed by pollen-based correction. After correcting for mangrove inputs, we obtain estimates of d2Hprecip-corr from -33 to +25 per mil throughout the last 2,950 years, with uncertainties on the order of 10-20 per mil. 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Native Format(s) https://doi.org/10.25921/9wng-vh09 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/29512 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography HTTPS Information NCEI Paleoceanography Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/atlantic/blackwood2020wax.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21