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Metadata Identifier: gov.noaa.ngdc.mgg.geology:G02885

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Biogenic Silica and Carbon 14 Age Dates from Lake Victoria Cruise V95 Cores The LLO operates in conjunction with the Limnological Research Center (LRC) in working towards fulfilling the objectives of the International Decade for the East African Lakes (IDEAL) to study the East African Lakes. The Lake Victoria project is funded by NSF. Like Lake Victoria, extensive work is being continued on Lake Malawi, Lake Turkana, and Lake Edward. In addition to the East African lakes, the LLO is working on Lake Issyk Kul', Lake Nicaragua, and Lake Superior. Summary: The Biogenic Silica Data file contains data for 5 cores taken from various sites in Lake Victoria. The data include ship, coring date, water depth, latitude/longitude, sampling device, sampled interval, % biogenic silica, and 14C dates. Cores were sampled at 10 cm intervals for biogenic silica analysis. Samples taken for 14C dating were prepared at the LRC Laboratory and sent to an outside AMS Facility for analysis. Pollen, charcoal, and plant macrofossils were dated. Biogenic Silica analysis was done using a timed, wet extraction technique adapted from D. J. DeMaster (1979). The analysis was done using 0.5 M NaOH at 85 0C.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
2
    2015-06-24
Archive
1 Beuning, K., K. Kelts and T. C. Johnson, in press. Paleohydrology of Lake Victoria, East Africa inferred from 18O/16O ratios in sediment cellulose. Geology.
    1996-12-31
1 Biogenic Silica and Carbon 14 Age Dates from Lake Victoria Cruise V95 Cores
    1997-11-03
    1997-11-03
1 CIESIN Keyword Thesaurus
    1 Curators of Marine and Lacustrine Geological Samples Consortium: Index to Marine and Lacustrine Geological Samples (IMLGS). National Geophysical Data Center, NOAA. doi:10.7289/V5H41PB8
      2006-12-31
    doi:10.7289/V5H41PB8
    1 DeMaster, D.J. (1979) , The Marine Budgets of Silica and 32Si. Ph. D. Thesis, Yale University. pp 246-264.
      1979-12-31
    1 Documentation for the Biogenic Silica and Carbon 14 Age Dates from Lake Victoria Cruise V95 Cores dataset.
      1997-11-03
    1 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
      2008-11-12
    1 Johnson, T. C., C. A. Scholz, M. R. Talbot, K. Kelts, R. D. Ricketts, G. Ngobi, K. Beuning, I. Ssemmanda and J. McGill, 1996. Late Pleistocene desiccation of Lake Victoria and rapid evolution of cichlid fishes. Science, v.273, p. 1091-1093.
      1996-12-31
    1 Johnson, T. C., Y. Chan, K. Beuning, K. Kelts, G. Ngobi and D. Verschuren, in press. Biogenic silica profiles in Holocene cores from Lake Victoria: implications for lake level history and initiation of the Victoria Nile. In: Lehman, J. T. (Editor), Environmental Change and Response in East African Lakes. Kluwer Press, Amsterdam.
      1996-12-31
    1 Library of Congress Subject Headings Library of Congress Subject Headings
      1 NASA/GCMD Data Center Keywords NASA/GCMD Data Center Keywords
        1 NASA/GCMD Instrument Keywords NASA/GCMD Instrument Keywords
          1 NASA/GCMD Location Keywords NASA/GCMD Location Keywords
            1 NASA/GCMD Platform Keywords NASA/GCMD Platform Keywords
              1 NASA/GCMD Project Keywords NASA/GCMD Project Keywords
                1 NASA/GCMD Science Keywords NASA/GCMD Science Keywords
                  1 NASA/Global Change Master Directory (GCMD) Platform Keywords NASA/Global Change Master Directory (GCMD) Platform Keywords
                    2008-02-05
                  1 Scholz, C. A., T. C. Johnson, P. Cattaneo, H. Malinga and S. Shana, in press. Initial results of 1995 IDEAL seismic reflection survey of Lake Victoria, Uganda and Tanzania. In: Lehman, J. T. (Editor), Environmental Change and Response in East African Lakes. Kluwer Press, Amsterdam.
                    1996-12-31
                  1 USDA National Agricultural Library's Agricultural Thesaurus (NALT) USDA National Agricultural Library's Agricultural Thesaurus (NALT)
                    1 Verschuren, D., D. N. Edgington, H. J. Kling and T. C. Johnson, in press. The eutrophication of Lake Victoria: sedimentary signals at offshore stations. Journal of Gt. Lakes Research.
                      1996-12-31
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                    CI_Series

                    Count Component Name Issue Identification Page
                    1 Environmental Change and Response in East African Lakes in press
                    1 Environmental Change and Response in East African Lakes. Kluwer Press, Amsterdam in press
                    1 Geology in press
                    1 Journal of Great Lakes Research in press
                    1 Marine Geology and Geophysics (MGG) MGG 94075001
                    1 Science v. 273
                    1 Yale University Ph. D. Thesis
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                    CI_ResponsibleParty

                    Count Component Individual Organization Position Email Role Linkage
                    7 GCMD Valids custodian http://gcmd.nasa.gov/learn/keyword_list.html
                    3 https://dx.doi.org/10.7289/V5H41PB8
                    1 >Beuning, K., et al. author
                    1 >Johnson, T.C., et al. author
                    1 >Scholz, C.A., et al. author
                    1 >Verschuren, D., et al. author
                    1 Curators of Marine and Lacustrine Geological Samples author
                    2 pointOfContact - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Marine Geology Data Manager geology.info@noaa.gov pointOfContact
                    1 Marine Geology Data Manager - distributor - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Data Manager geology.info@noaa.gov distributor
                    1 custodian - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Marine Geology Data Manager geology.info@noaa.gov custodian
                    1 David J. DeMaster author
                    1 David J. DeMaster Department of Marine, Earth and Atmospheric Sciences, North Carolina State University demaster@ncsu.edu author http://www.meas.ncsu.edu/
                    1 European Petroleum Survey Group http://www.epsg-registry.org/
                    1 Johnson, T.C., et al. author
                    7 GCMD User Support Office NASA GCMD User Support Office gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
                    2 National Centers for Environmental Information, NOAA resourceProvider
                    1 National Geophysical Data Center, NOAA publisher
                    1 resourceProvider - US Library of Congress US Library of Congress resourceProvider http://id.loc.gov/authorities/subjects
                    1 resourceProvider - USDA National Agricultural Library USDA National Agricultural Library resourceProvider http://agclass.nal.usda.gov/
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                    CI_OnlineResource

                    Count Component Linkage Name Description Function
                    1 http://agclass.nal.usda.gov/ NAL Agricultural Thesaurus (NALT) The US Department of Agriculture, National Agricultural Library's (NAL) Agricultural Thesaurus (NALT). information
                    7 http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso GCMD Feedback Form Have a Comment for the GCMD? information
                    7 GCMD Keyword Page http://gcmd.nasa.gov/learn/keyword_list.html GCMD Keywords Page This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. information
                    1 http://id.loc.gov/authorities/subjects Library of Congress Subject Headings (LCSH) The Library of Congress Subject Headings (LCSH) are part of a Linked Data Service, actively maintained since 1898 to catalog materials held at the Library of Congress. information
                    1 http://www.epsg-registry.org/ European Petroleum Survey Group Geodetic Parameter Dataset Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search
                    1 http://www.meas.ncsu.edu/ http://www.meas.ncsu.edu/ Contributors web site information
                    1 http://www.ngdc.noaa.gov/docucomp/page?xml=NOAA/NESDIS/NGDC/Collection/iso/xml/Marine_Geology.xml&view=getDataView&header=none Parent Archive Information about the Marine Geology Data Archive at NCEI. information
                    1 http://www.ngdc.noaa.gov/docucomp/page?xml=NOAA/NESDIS/NGDC/MGG/Geology/iso/xml/G02885.xml&view=getDataView&header=none Publisher's landing page Information about the data set, all access options, and complete documentation. information
                    1 https://dx.doi.org/10.7289/V5H41PB8 doi:10.7289/V5H41PB8 The IMLGS contains related data and information. information
                    1 https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets Related NCEI Archive Information about the Paleoclimatology Data Archive at NCEI. information
                    1 https://www.ngdc.noaa.gov/mgg/geology/data/g02885/ Data files and documentation All originator's data and documentation. download
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                    MD_Identifier or RS_Identifier

                    Count Component Code
                    2 Archive
                    1 In Situ Ocean-based Platforms > SHIPS
                    2 Paleoclimate data
                    2 doi:10.7289/V5H41PB8
                    1 urn:ogc:def:crs:EPSG:4326
                    1 various
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                    EX_Extent

                    Bounding Box Temporal Extent
                    Count Component Description West East North South Start End
                    1 Lake Victoria, East Africa 32.8285 33.4553 -0.4605 -1.593 1995-04-08 1995-04-12
                    Unresolved Xlinks
                    #boundingExtent at: /gmi:MI_Metadata/gmd:dataQualityInfo[1]/gmd:DQ_DataQuality[1]/gmd:scope[1]/gmd:DQ_Scope[1]/gmd:extent[1]
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                    EX_GeographicBoundingBox

                    Count Component West East North South
                    1 32.8285 33.4553 -0.4605 -1.593
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                    EX_TemporalExtent

                    Count Component Start End
                    1 1995-04-08 1995-04-12
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                    MD_Format

                    Count Component Name Version specification
                    1 ASCII UTF-8 American Standard Code for Information Interchange (ASCII) text format.
                    1 tar.gz unknown compressed Tape ARchive file
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                    MD_Medium

                    none found
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                    MD_Constraints

                    Count Component Use Limitation
                    1 Please cite the originator of the data set, the date downloaded, and the National Centers for Environmental Information, NOAA, as the source of the data.
                    1 NCEI Copyright Statement Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
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                    MD_ReferenceSystem

                    Count Component Code Authority Title
                    1 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry urn:ogc:def:crs:EPSG:4326 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
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                    MD_GridSpatialRepresentation

                    none found
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                    MD_Georeferenceable or MI_Georeferenceable

                    none found
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                    MD_Georectified or MI_Georectified

                    none found
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                    MD_Dimension

                    none found
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                    MD_CoverageDescription or MI_CoverageDescription

                    Count Component Attribute Description Content Type
                    1 point The Latitude and Longitude (point) from which a sample of sediment or rock was collected from the sea floor or a lakebed.
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                    MD_Band or MI_Band

                    Count Component Identifier Descriptor
                    1 Latitude Distance measured north or south from the equator. Distance north is positive, distance south is negative.
                    1 Longitude Longitude is measured from the Prime Meridian (which is the north/south line that runs through Greenwich, England), values measured east are positive and values measured west are negative.
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                    MI_RangeElementDescription

                    none found
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                    MD_AggregateInformation

                    Count Component Title Code Association Type Code
                    1 Archive largerWorkCitation
                    1 Paleoclimate data largerWorkCitation
                    1 Beuning, K., K. Kelts and T. C. Johnson, in press. Paleohydrology of Lake Victoria, East Africa inferred from 18O/16O ratios in sediment cellulose. Geology. crossReference
                    1 Curators of Marine and Lacustrine Geological Samples Consortium: Index to Marine and Lacustrine Geological Samples (IMLGS). National Geophysical Data Center, NOAA. doi:10.7289/V5H41PB8 doi:10.7289/V5H41PB8 crossReference
                    1 DeMaster, D.J. (1979) , The Marine Budgets of Silica and 32Si. Ph. D. Thesis, Yale University. pp 246-264. crossReference
                    1 Johnson, T. C., C. A. Scholz, M. R. Talbot, K. Kelts, R. D. Ricketts, G. Ngobi, K. Beuning, I. Ssemmanda and J. McGill, 1996. Late Pleistocene desiccation of Lake Victoria and rapid evolution of cichlid fishes. Science, v.273, p. 1091-1093. crossReference
                    1 Johnson, T. C., Y. Chan, K. Beuning, K. Kelts, G. Ngobi and D. Verschuren, in press. Biogenic silica profiles in Holocene cores from Lake Victoria: implications for lake level history and initiation of the Victoria Nile. In: Lehman, J. T. (Editor), Environmental Change and Response in East African Lakes. Kluwer Press, Amsterdam. crossReference
                    1 Scholz, C. A., T. C. Johnson, P. Cattaneo, H. Malinga and S. Shana, in press. Initial results of 1995 IDEAL seismic reflection survey of Lake Victoria, Uganda and Tanzania. In: Lehman, J. T. (Editor), Environmental Change and Response in East African Lakes. Kluwer Press, Amsterdam. crossReference
                    1 Verschuren, D., D. N. Edgington, H. J. Kling and T. C. Johnson, in press. The eutrophication of Lake Victoria: sedimentary signals at offshore stations. Journal of Gt. Lakes Research. crossReference
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                    LE_Source or LI_Source

                    Count Component Title Date Description
                    1 Unknown D.J. DeMaster, University of Minnesota, Large Lakes Observatory
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                    LE_ProcessStep or LI_ProcessStep

                    Count Component DateTime Description
                    1 1977-11-03T00:00:00 Received data from originator
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                    MI_Operation

                    none found
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                    MI_Platform

                    Count Component Code Description
                    1 In Situ Ocean-based Platforms > SHIPS In Situ Ocean-based Platforms > SHIPS Various ocean-based and lake-based ships, boats, remotely operated vehicles, submersibles, and other unspecified types of platforms
                    Unresolved Xlinks
                    In Situ Ocean-based Platforms > SHIPS at: /gmi:MI_Metadata/gmi:acquisitionInformation[1]/gmi:MI_AcquisitionInformation[1]/gmi:platform[1]
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                    MI_Instrument

                    Count Component Code Type Description
                    1 various
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