noaa-ocean-10333 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 2024-06-05 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Chilean Margin 30KYr Redox-Sensitive Metals Data 2010-12-29 publication doi:10.25921/4455-r310 noaa-ocean-10333 NCEI DSI 1200_02 NCEI DSI 1200_01 Muratli, J.M. originator Muratli, J.M. author Chase, Z. originator Chase, Z. author Mix, A.C. originator Mix, A.C. author McManus, J.F. originator McManus, J.F. 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 South Pacific Ocean. The time period coverage is from 30185 to 155 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 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 earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleocean > geochemistry 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 Meridional Overturning Circulation (MOC) theme What: manganese; Material: sediment What: depth at sample end; Material: null What: aluminum; Material: sediment What: aluminum; Material: sediment What: organic carbon; Material: sediment What: aluminum; Material: null What: rhenium; Material: sediment What: organic carbon; Material: sediment What: age; Material: null What: manganese; Material: sediment What: depth; Material: null What: rhenium; Material: sediment What: biogenic silica; Material: null What: biogenic silica; Material: sediment What: organic carbon; Material: null What: organic carbon; Material: null What: biogenic silica; Material: sediment What: sedimentation rate; Material: null What: aluminum; Material: null What: depth at sample start; Material: null What: biogenic silica; Material: null 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 > Pacific Ocean > South Pacific Ocean > ODP 1233 > LATITUDE -41 > LONGITUDE -74.45 Ocean > Pacific Ocean > Eastern Pacific Ocean > ODP 1234 > LATITUDE -36.219167 > LONGITUDE -73.68167 Ocean > Pacific Ocean > Eastern Pacific Ocean > ODP 1235 > LATITUDE -36.159833 > LONGITUDE -73.56633 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: Muratli, J.M.; Chase, Z.; Mix, A.C.; McManus, J.F. (2010-12-29): NOAA/WDS Paleoclimatology - Chilean Margin 30KYr Redox-Sensitive Metals Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/4455-r310. 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. Increased glacial-age ventilation of the Chilean margin by Antarctic Intermediate Water 2010 publication Muratli, J.M., Z. Chase, A.C. Mix, and J. McManus author Nature Geoscience publisher https://doi.org/10.1038/ngeo715 HTTPS Web Browser Associated Reference published 2010 Muratli, J.M., Z. Chase, A.C. Mix, and J. McManus, 2010: Increased glacial-age ventilation of the Chilean margin by Antarctic Intermediate Water. Nature Geoscience, 3, 23-26, 10.1038/ngeo715 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 30185 cal yr BP to 155 cal yr BP; -74.45 -73.56633 -41 -36.159833 -28235 1795 STUDY NOTES: Sediment concentration of redox (oxidation-reduction reaction) sensitive metals (Re and Mn) from 3 cores along the Chilean Margin in the eastern South Pacific, interpreted as a proxy for sea floor oxygen concentration. Accumulation rates of organic carbon and opal are also included as productivity proxies. ABSTRACT SUPPLIED BY ORIGINATOR: Antarctic Intermediate Water is, at present, a water mass that brings oxygen to intermediate depths throughout the Southern Hemisphere oceans. Models have suggested that intermediate waters had higher concentrations of oxygen during the last glacial period, consistent with globally reduced denitrification and increased production of Antarctic Intermediate Water. However, some palaeoceanographic reconstructions have indicated that production decreased in the southeast Pacific Ocean at this time. Here we analyse the concentrations of Re and Mn, the sedimentary concentrations of which are controlled by the amount of dissolved oxygen at the sea floor, from three sediment cores located along the Chilean margin for the past 30,000 years. Our results from the cores, which bracket the present-day water-column extent of Antarctic Intermediate Water, show that the depth range of well-oxygenated Antarctic Intermediate Water increased off Chile during the Last Glacial Maximum. Dissolved oxygen content began to decrease approximately 17,000 years ago, coincident with rapid Antarctic warming and a poleward shift of the southern westerly winds. Our estimates of productivity from accumulation rates of organic carbon and opal do not co-vary with the seafloor oxygen variations, ruling out local control of seafloor oxygenation. We conclude that the data are best explained by a combination of increased oxygenation and increased flux of Antarctic Intermediate Water during the Last Glacial Maximum. 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 distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/4455-r310 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/10333 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/muratli2010/muratli2010.xls HTTPS Download /contributions_by_author/muratli2010/muratli2010.xls Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/muratli2010/muratli2010.txt HTTPS Download /contributions_by_author/muratli2010/muratli2010.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