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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 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 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
      Unresolved Xlinks
      NASA/GCMD Project Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[1]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
      Library of Congress Subject Headings at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[2]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
      NASA/GCMD Science Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[4]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
      NASA/GCMD Platform Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[5]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
      NASA/GCMD Instrument Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[6]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
      NASA/GCMD Data Center Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[8]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
      NASA/GCMD Location Keywords at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:descriptiveKeywords[9]/gmd:MD_Keywords[1]/gmd:thesaurusName[1]
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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
      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
      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 Johnson, T.C., et al. author
      2 National Centers for Environmental Information, NOAA resourceProvider
      1 National Geophysical Data Center, NOAA publisher
      1 resourceProvider - USDA National Agricultural Library USDA National Agricultural Library resourceProvider http://agclass.nal.usda.gov/
      Unresolved Xlinks
      pointOfContact - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce at: /gmi:MI_Metadata/gmd:contact[1]
      pointOfContact - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:pointOfContact[1]
      Marine Geology Data Manager - distributor - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributor[1]/gmd:MD_Distributor[1]/gmd:distributorContact[1]
      custodian - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce at: /gmi:MI_Metadata/gmd:metadataMaintenance[1]/gmd:MD_MaintenanceInformation[1]/gmd:contact[1]
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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
      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
      2 Paleoclimate data
      2 doi:10.7289/V5H41PB8
      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

      Unresolved Xlinks
      European Petroleum Survey Group (EPSG) Geodetic Parameter Registry at: /gmi:MI_Metadata/gmd:referenceSystemInfo[1]
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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

      none found
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      MD_Band or MI_Band

      none found
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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

      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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