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Biogenic Silica and Carbon 14 Age Dates from Lake Victoria Cruise V95 Cores

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 06, 2026 at 09:31 AM | Dataset Last Updated: November 03, 1997 at 12:00 AM
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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Unknown ICSU-WDS > International Council for Science - World Data System Scientific archives Electronic records Geology lacustrine sediments Earth Science > Paleoclimate > Ocean/Lake Records > Sediments Earth Science > PALEOCLIMATE > Ocean/Lake Records > Isotopes

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Complete Metadata
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description 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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identifier https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/MGG/Geology/iso/xml/G02885.xml
isPartOf Index to Marine and Lacustrine Geological Samples (IMLGS)
issued 1997-11-03T00:00:00.000+00:00
keyword 
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  "Scientific archives",
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  "Geology",
  "lacustrine sediments",
  "Earth Science > Paleoclimate > Ocean/Lake Records > Sediments",
  "Earth Science > PALEOCLIMATE > Ocean/Lake Records > Isotopes",
  "Earth Science > PALEOCLIMATE > Ocean/Lake Records > Radiocarbon",
  "Earth Science > PALEOCLIMATE > Ocean/Lake Records > Stratigraphic Sequence",
  "In Situ Ocean-based Platforms > Ships",
  "In Situ/Laboratory Instruments > Corers > Coring Devices",
  "In Situ/Laboratory Instruments > Corers > Sediment Corers",
  "CIESIN > Environmental Protection > Environmental Modeling > Climate Modeling",
  "CIESIN > Environmental Protection > Climate > Climate Change",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce",
  "CONTINENT > AFRICA > EASTERN AFRICA > LAKE VICTORIA"
]
landingPage http://www.meas.ncsu.edu/
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license https://creativecommons.org/publicdomain/zero/1.0/
modified 1997-11-03T00:00:00.000+00:00
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  "https://dx.doi.org/10.7289/V5H41PB8",
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rights otherRestrictions, otherRestrictions, unclassified
spatial 33.4553,-1.593,32.8285,-0.4605
temporal 1995-04-08T00:00:00+00:00/1995-04-12T00:00:00+00:00
title Biogenic Silica and Carbon 14 Age Dates from Lake Victoria Cruise V95 Cores

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