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On 13 August 2021 at 17:00:33 UTC, Gravatar Ricardo Fernandes:
  • Renamed resource Flotatio video to Archaeobotany - Bilge Pump Flotation System in Video tutorials


  • Updated description of resource Archaeobotany - Bilge Pump Flotation System in Video tutorials from

    flotatio is anice
    to
    Flotation is a recovery technique used in archaeology to retrieve light organic remains from the soil matrix through water separation. Here I am floating a 10 liter bulk sample from a prehistoric site in northwest Nevada using an affordable and efficient flotation machine that recycles water. The first tank that I dump the sample into has a mesh cloth collecting the heavy fraction that sinks (lithic tools, bone, a few non-cultural rocks) while the lighter fraction (seeds, woody remains, roots) floats up to the surface of the water and is collected in the colander cloth mesh. I was very happy with the flotation device: we managed to float 79 bulk samples within three weeks out in the field. Unfortunately my camera battery died before I finished floating the entire sample. You can find more information about the bilge pump flotation machine from Shelton and Whites paper, "The Hand-Pump Flotation System: A New Method for Archaeobotanical Recovery".


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