noaa-ocean-34772 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 2025-05-28 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Sabrina Coast East Antarctica, Pollen and Biomarker Data from 59-38 million years ago 2021-11-15 publication doi:10.25921/16cq-ck74 noaa-ocean-34772 NCEI DSI 1200_02 NCEI DSI 1200_01 Duffy, M. originator Duffy, M. author Tibbett, E.J. originator Tibbett, E.J. author Smith, C. originator Smith, C. author Warny, S. originator Warny, S. author Feakins, S.J. originator Feakins, S.J. author Escarguel, G. originator Escarguel, G. author Askin, R. originator Askin, R. author Leventer, A. originator Leventer, A. author Shevenell, A.E. originator Shevenell, A.E. 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 paleoceanography with a geographic location of Southern Ocean. The time period coverage is from 59000000 to 5000000 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 > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleoceanography earth 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paleoceanography|pollen earth science > paleoclimate > paleoceanography|pollen earth science > paleoclimate > paleocean > population abundance earth science > paleoclimate > paleocean > biomarkers earth science > paleoclimate > paleocean > 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 Vegetation Reconstruction hydrology theme What: C17 n-alkanoic acid; Material: sediment What: C28 n-alkanoic acid; Material: sediment What: C30 n-alkanoic acid; Material: sediment What: hopane; Material: sediment What: delta 13C; Material: C26 n-alkanoic acid What: delta 13C; Material: C26 n-alkanoic acid What: number of samples; Material: n-alkanoic acid What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: C30 n-alkane; Material: sediment What: carbon preference index; Material: n-alkanoic acid What: hopane; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: C24 n-alkane; Material: sediment What: C26 n-alkanoic acid; Material: sediment What: n-alkanoic acid; Material: sediment What: hopane; Material: sediment What: delta 2H; Material: C30 n-alkanoic acid What: delta 2H; Material: C32 n-alkanoic acid What: depth; Material: null What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: sample identification; Material: null What: C20 n-alkane; Material: sediment What: C24 n-alkanoic acid; Material: sediment What: C29 n-alkanoic acid; Material: sediment What: hopane; Material: sediment What: hopane; Material: sediment What: hopane; Material: sediment What: hopane; Material: sediment What: delta 13C; Material: C32 n-alkanoic acid What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: hopane; Material: sediment What: C19 n-alkane; Material: sediment What: C28 n-alkane; Material: sediment What: C29 n-alkane; Material: sediment What: C18 n-alkanoic acid; Material: sediment What: C20 n-alkanoic acid; Material: sediment What: hopane; Material: sediment What: hopane; Material: sediment What: hopane; Material: sediment What: hopane; Material: sediment What: delta 13C; Material: C28 n-alkanoic acid What: delta 13C; Material: C28 n-alkanoic acid What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: depth; Material: null What: C23 n-alkane; Material: sediment What: C25 n-alkane; Material: sediment What: C27 n-alkane; Material: sediment What: C19 n-alkanoic acid; Material: sediment What: C21 n-alkanoic acid; Material: sediment What: C22 n-alkanoic acid; Material: sediment What: C23 n-alkanoic acid; Material: sediment What: carbon preference index; Material: n-alkane What: average chain length; Material: n-alkanoic acid What: delta 13C; Material: C24 n-alkanoic acid What: delta 13C; Material: C32 n-alkanoic acid What: number of samples; Material: n-alkanoic acid What: delta 2H; Material: C28 n-alkanoic acid What: delta 2H; Material: C28 n-alkanoic acid What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: C17 n-alkane; Material: sediment What: C18 n-alkane; Material: sediment What: C21 n-alkane; Material: sediment What: C16 n-alkanoic acid; Material: sediment What: C25 n-alkanoic acid; Material: sediment What: average chain length; Material: n-alkane What: hopane; Material: sediment What: hopane; Material: sediment What: delta 13C; Material: C24 n-alkanoic acid What: delta 13C; Material: C30 n-alkanoic acid What: delta 13C; Material: C30 n-alkanoic acid What: delta 2H; Material: C30 n-alkanoic acid What: delta 2H; Material: C32 n-alkanoic acid What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: sample identification; Material: null What: C22 n-alkane; Material: sediment What: C26 n-alkane; Material: sediment What: C31 n-alkane; Material: sediment What: C27 n-alkanoic acid; Material: sediment What: n-alkane; Material: sediment What: hopane; Material: sediment What: hopane; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment What: pollen; Material: sediment 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 > Southern Ocean > NBP14-02 JPC-55,JPC-54,JPC-30,JPC-31 > LATITUDE > LONGITUDE Ocean > Southern Ocean > NBP14-02 JPC-55,JPC-54 > LATITUDE > LONGITUDE 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: Duffy, M.; Tibbett, E.J.; Smith, C.; Warny, S.; Feakins, S.J.; Escarguel, G.; Askin, R.; Leventer, A.; Shevenell, A.E. (2021-11-15): NOAA/WDS Paleoclimatology - Sabrina Coast East Antarctica, Pollen and Biomarker Data from 59-38 million years ago. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/16cq-ck74. 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. Snapshots of pre-glacial paleoenvironmental conditions along the Sabrina Coast, East Antarctica: new palynological and biomarker evidence 2022 publication Duffy, Meghan; Emily J. Tibbett; Catherine Smith; Sophie Warny; Sarah J. Feakins; Gilles Escarguel; Rosemary Askin; Amy Leventer; Amelia E. Shevenell author Geobios publisher https://doi.org/10.1016/j.geobios.2021.09.001 HTTPS Web Browser Associated Reference published 2022 Duffy, Meghan; Emily J. Tibbett; Catherine Smith; Sophie Warny; Sarah J. Feakins; Gilles Escarguel; Rosemary Askin; Amy Leventer; Amelia E. Shevenell, 2022: Snapshots of pre-glacial paleoenvironmental conditions along the Sabrina Coast, East Antarctica: new palynological and biomarker evidence. Geobios, 70, 1-16, 10.1016/j.geobios.2021.09.001 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 59000000 cal yr BP to 5000000 cal yr BP; 120.33 120.67 -66.45 -66.28 -58998050 -4998050 STUDY NOTES: Site metadata- NBP14-02 JPC-55: -66.35, 120.51, -520 m; NBP14-02 JPC-54: -66.28, 120.67, -442 m; NBP14-02 JPC-30: -66.45, 120.33, -548 m; NBP14-02 JPC-31: -66.45, 120.34, -534 m Provided Keywords: East Antarctica, Paleogene, Cretaceous, Palynology, Paleovegetation ABSTRACT SUPPLIED BY ORIGINATOR: The Aurora Subglacial Basin (ASB) catchment contains 3–5 m of sea-level equivalent ice volume that drains to the Sabrina Coast, East Antarctica via the Totten Glacier system. Observed thinning and retreat of Totten Glacier indicate regional sensitivity to oceanographic and atmospheric warming. Paleoclimate studies of climatically sensitive catchments are required to understand the evolution of the East Antarctic Ice Sheet (EAIS) and its outlet glacier systems. Recent seismic and sediment studies from the Sabrina Coast document the evolution of the EAIS in the ASB catchment, suggesting that the region has long been sensitive to climatic changes. This study presents new palynological and biomarker data from Sabrina Coast continental shelf sediments. Detailed palynological records were obtained from four short jumbo piston cores (JPC; NBP14-02 JPC-30, -31, -54 and -55), enabling reconstructions of regional vegetation and environments prior to and during Cenozoic EAIS development. The Sabrina Flora is dominated by angiosperms, with Gambierina spp. often exceeding 40% of the assemblage, and diverse Proteaceae, Battenipollis spp., Forcipites spp., Nothofagidites spp., fern, and conifer palynomorphs indicative of an open shrubby ecosystem. Excellent preservation and frequent occurrence of Gambierina spp. clusters suggest that a majority of the Sabrina Flora assemblage is penecontemporaneous with sedimentation; however, some uncertainties remain whether this sedimentation occurred in the Late Cretaceous or the Paleogene. Despite that uncertainty, high abundances of Gambierina spp. and Battenipollis spp., in combination with relatively low (<10%) Nothofagidites spp. abundances indicate that the Sabrina Flora is unique in Antarctica. Evaluation of biomarkers finds evidence for penecontemporaneous and reworked components. The penecontemporaneous C30 nalkanoic acids have ?13C values of -30.2 ± 0.5‰, consistent with ?13C values in an open canopy woodland or shrubby open vegetation. Their hydrogen isotope (?D) values of -215 ± 4.5‰, indicate precipitation isotopic composition (?Dprecip) of -130‰, similar to coastal snow in the same region today. Together, Sabrina Flora palynomorph and plant wax data suggest a drier, more open coastal vegetation in the Aurora Basin of East Antarctica rather than the closed rainforest vegetation often described from other parts of Antarctica for the Cretaceous to Paleogene. To directly compare records from the circum-Antarctic, additional long sedimentary records with improved biostratigraphic constraints are required. Such records will enable identification of regional climate gradients or micro-climates, and allow assessment of the environmental conditions and mechanisms driving observed differences. 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Native Format(s) https://doi.org/10.25921/16cq-ck74 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/34772 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/contributions_by_author/duffy2021/duffy2021-pollen.txt HTTPS Download /contributions_by_author/duffy2021/duffy2021-pollen.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/duffy2021/duffy2021-biomarker.txt HTTPS Download /contributions_by_author/duffy2021/duffy2021-biomarker.txt Original Data and Full Metadata download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21