meth_2.14 Sediment Grain Size Fractionation percent fines in marine sediments Marine Microbes Coastal Project

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AM Project ID: Legacy

  1. Wash sediment (~5 g) from the top 1 cm through filter holder to retain different fractions; gravel (collected on 2 mm mesh), sand (collected on 63 μm mesh), and fines (collected in sump).
  2. Transfer sediments into pre-weighed and labelled specimen jars.
  3. Leave for 24 h to allow sediments to settle and then suction off excess water.
  4. Transfer to drying oven at 60 °C for 24-48 h or until sediments are completely dry.
  5. Re-weigh jars and calculate the weight of each fraction to determine % fines in the sample.