NOAA/WDS Paleoclimatology - North Alaska Continental Margin Late Pleistocene Physical Properties Data
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organisationName: NOAA World Data Service for Paleoclimatology
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electronicMailAddress: paleo@noaa.gov
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dateStamp: 2023-09-01
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title: NOAA/WDS Paleoclimatology - North Alaska Continental Margin Late Pleistocene Physical Properties Data
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date: 2015-11-02
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Anchor: DOI doi:10.25921/cq91-wk51
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code: noaa-ocean-19500
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code: NCEI DSI 1200_02
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code: NCEI DSI 1200_01
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individualName: Nam, S.-I.
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individualName: Nam, S.-I.
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organisationName: NOAA National Centers for Environmental Information
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abstract: 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 Arctic Ocean. The time period coverage is from 30000 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.
purpose: 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.
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electronicMailAddress: paleo@noaa.gov
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fileName: https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-ocean.png
fileDescription: Paleoclimatology - Paleoceanography
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descriptiveKeywords: (MD_Keywords)
keyword: Earth Science > Paleoclimate > Ocean/Lake Records
keyword: Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
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date: 2020-01-09
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edition: 9.1
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organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System
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keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleoceanography
keyword: earth science > paleoclimate > paleocean > physical properties
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keyword: What: impedance; Material: sediment
keyword: What: resistivity; Material: sediment
keyword: What: notes; Material: null
keyword: What: resistivity; Material: sediment
keyword: What: P-wave velocity; Material: sediment
keyword: What: resistivity; Material: sediment
keyword: What: depth; Material: null
keyword: What: P-wave amplitude; Material: sediment
keyword: What: volume magnetic susceptibility; Material: sediment
keyword: What: notes; Material: null
keyword: What: depth; Material: null
keyword: What: density; Material: wet sediment
keyword: What: porosity; Material: sediment
keyword: What: magnetic susceptibility; Material: sediment
type: (MD_KeywordTypeCode) theme
thesaurusName: (CI_Citation)
title: Paleoenvironmental Standard Terms (PaST) Thesaurus
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keyword: Ocean > Arctic Ocean > ARA04B-02GC > LATITUDE 73.367 > LONGITUDE -152.4005
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keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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otherConstraints: Cite as: Nam, S.-I. (2015-11-02): NOAA/WDS Paleoclimatology - North Alaska Continental Margin Late Pleistocene Physical Properties Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/cq91-wk51. Accessed [date].
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otherConstraints: 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.
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otherConstraints: 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.
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otherConstraints: 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.
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aggregateDataSetName: (CI_Citation)
title: Pleistocene glaciations in the western Arctic Ocean: tentative age model of marine glacial landforms
date: (CI_Date)
date: 2015
dateType: (CI_DateTypeCode) publication
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individualName: Niessen, F., Stein, R., Matthiessen, J., Jensen, L., Nam, S.-I., Schrek, M.
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organisationName: Geophysical Research Abstracts
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language: eng; USA
topicCategory: (MD_TopicCategoryCode) geoscientificInformation
extent: (EX_Extent)
description: Date Range: 30000 cal yr BP to 0 cal yr BP;
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westBoundLongitude: -152.4005
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southBoundLatitude: 73.367
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supplementalInformation: STUDY NOTES: Sediment physical properties data for 7 cores collected in 2013 by RV Araon on the North Alaskan Continental Margin, US EEZ waters. Parameters measured include velocity, density, impedance, magnetic susceptibility, porosity, and resistivity. ABSTRACT SUPPLIED BY ORIGINATOR: Recently glacial landforms were presented and interpreted as complex pattern of Pleistocene glaciations in the western Arctic Ocean along the continental margin of the East Siberian and Chukchi seas, (Niessen et al. 2013, Dove et al. 2014). These landforms include moraines, drumlins, glacigenic debris flows, till wedges and mega-scale glacial lineations. Orientations of some of the landforms suggest the presence of former ice sheets on the Chukchi Borderland and the East Siberian shelf. Here we present a tentative age model for some of the younger glacial events by correlation of sediment cores with glacial landforms as seen in subbottom profiles. The database was obtained during RV "Polarstern" cruise ARK-XIII/3 (2008) and RV "Araon" cruise ARA03B (2012), which investigated an area between the Chukchi Borderland and the East Siberian Sea between 165W and 170E. The stratigraphic correlation of sediment cores is based on physical properties (wet-bulk density and magnetic susceptibility), lithology and color. The chronology of the area has been proposed by Stein et al. (2010) for a core from the Chukchi Abyssal Plain (PS72/340-5) and includes brown layers B1 to B9 (marine isotope stages MIS 1 to MIS 7), which are used as marker horizons for lateral core correlation. Our tentative age model suggests that the youngest and shallowest (480 m below present water level; mbpwl) grounding event of an ice sheet on the Chukchi Borderland is younger than B2 (interpreted as Last Glacial Maximum; LGM). There is no clear evidence for a LGM glaciation along the East Siberian margin because intensive post LGM iceberg scouring occurred above 350 m present water level. On the slopes of the East Siberian Sea two northerly directed ice advances occurred, both of which are older and younger than B2 and B3, respectively. The younger advance grounded to about 700 m present water depth along the continental slope and the older to 900 m and 1100 m on the Arlis Plateau and the East Siberian continental margin, respectively. We interpret these advances as Middle Weichselian glaciations on the Beringian shelf (MIS 4 to 3). Two older glaciations can be dated as Early Weichselian (MIS 5b to 5d), of which the younger event is older and younger than B3 and B4, respectively. This glaciation can be traced by glacial wedges, streamlined lineations in up to 1200 mbpsl and subglacial diamicton along the East Siberian margin, the Arlis Plateau, and the Mendeleev Ridge. There are at least three older glaciation visible in acoustic images from the East Siberian continental margin, which probably predate the Weichselian. The available cores did not penetrate these events and the ages remain speculative.
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