noaa-other-13298 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2018-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Dare County, North Carolina Quaternary Subsurface Aminostratigraphy 2012-07-27 publication noaa-other-13298 NCEI DSI 1200_01 Riggs, S.R. originator Riggs, S.R. author York, L.L. originator York, L.L. author Wehmiller, J.F. originator Wehmiller, J.F. author Snyder, S.W. originator Snyder, S.W. 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 Other Collections. The data include parameters of others with a geographic location of North Carolina, United States Of America. The time period coverage is from 1000000 to 0 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Data of past climate and environment derived from unusual proxy evidence. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations. completed Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/pc-default-other.png Paleoclimatology - Other Collections PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Paleoclimate Reconstructions theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > others theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Continent > North America > United States Of America > North Carolina> Stetson Pit > LATITUDE 35.865 > LONGITUDE -75.858 place otherRestrictions Cite as: Riggs, S.R.; York, L.L.; Wehmiller, J.F.; Snyder, S.W. (2012-07-27): NOAA/WDS Paleoclimatology - Dare County, North Carolina Quaternary Subsurface Aminostratigraphy. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/13298. 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. eng; USA geoscientificInformation Date Range: 1000000 cal yr BP to 0 cal yr BP; -75.858 -75.858 35.865 35.865 Study Coordinates 35.865 -75.858 -998050 1950 STUDY NOTES: Extent of Racemization (D/L) data for mollusks from Pleistocene coastal units, subsurface sections of the Atlantic Coastal Plain, Dare County, North Carolina. Samples collected by L.L. York, S.R. Riggs, W. Miller III, and T.M. Cronin. Samples collected in 1970's and 1980's by vibracoring, excavation (Stetson Pit), and split-spoon drilling (Stetson Pit). Samples prepared and analyzed at the University of Delaware, Newark DE. [UDEL]. Lab PI John F. Wehmiller. Pretreatment: Fragments cut from shell valves; surface cleaning with dental tools; dilute HCl and distilled water wash; air dry AA fraction="amino fraction" THAA = total hydrolyzable amino acids; FAA = free amino acids (zero hydrolysis time) Hydrolysis procedure: 6N HCl 22 hours 105 deg C (for THAA only) Bleach: No Instrumental programming: GC temperature program; HPLC buffer gradient Blank corrections: no Response factors: no Lab Code UDEL= University of Delaware Sample ID = identity of specific shell analyzed Analytical method: GC = gas chromatography, used for multiple amino acids; Ion-exchange High Pressure Liquid Chromatography used for determination of A/I values (HPLC) Subsample ID = usually the same as sample ID; repeat fragments of same shell will have unique identification Ratio type = (peak area or peak height ratios) D/L values are reported as the means of multiple chromatograms, usually at least 2. For GC results, in most cases sample derivatives were analyzed using more than one GC column. Samples selected for analysis were chosen because they appeared to be the most robust specimens among those available. In most cases, samples were not whole valves. Abraded, rounded, or chalky fragments were avoided where possible, and multiple shells from each collection were analyzed in almost all cases. No data screening procedures have been applied. No interlab sample comparisons were made during the period of these analyses. Information on sample quality (fragment, whole shell, abraded, chalky, etc. will be compiled for a future version of this datafile. Abbreviations: A/I D-alloisoleucine/L-isoleucine Ala Alanine Asx Aspartic acid and asparagine Glx Glutamic acid and glutamine Leu Leucine Phe Phenylalanine Pro Proline Val Valine 9999 = no data available for this amino acid in this sample UDAMS LOCALITY DESIGNATIONS (UDAMS = UDAMinoStratigraphy) 07002 Excavation in 1981-1982 (W. Miller to T. M. Cronin to J. Wehmiler) Surface elevation ~ 2m 07004 Excavation in 1981-1982 (W. Miller to T. M. Cronin to J. Wehmiler) Surface elevation ~ 2m 07005 Core taken in 1982 (Miller, 1982). Top of core at ~ 0 m elevation 07077 Core taken in 1982 (Miller, 1982). Top of core at ~ 0 m elevation 07127 Core taken in 1982 (Miller, 1982). Top of core at ~ 0 m elevation 07128 Samples from original excavation in early 1980's. ABSTRACT SUPPLIED BY ORIGINATOR: Amino acid enantiomeric ratio data are presented for Pleistocene mollusks obtained from a suite of split-spoon and vibracore samples at sites in Dare County, northeastern North Carolina. The region lies within the Albemarle Embayment, a thick sequence of Quaternary and pre-Quaternary strata in the mid-Atlantic coastal plain, eastern United States. Land surface elevations range from 0 to +2 m. Sample depths range from ~ 4 meters to ~ 35 m below mean sea level. Specimens of the bivalve mollusk Mulinia and Mercenaria have been analyzed by ion-exchange and gas chromatography. Aminozones representing clusters of D/L values are used to correlate depositional sequences in the study area and to estimate times of deposition based on kinetic modeling of amino acid racemization. Deepest units are estimated to be older than 1 million years, while the shallowest Pleistocene units are estimated to be last interglacial (~80,000 - 125,000 yrs) in age, based on both racemization and uranium-thorium age estimates. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-other-13298 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/13298 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/other-collections HTTPS Information NCEI Other Collections Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/aar/riggs1992dare/riggs1992dare.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download https://www1.ncdc.noaa.gov/pub/data/paleo/aar/riggs1992dare/riggs1992dare.xls HTTP Download NCEI Direct Download Direct download links for dataset files. download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25