Granulometry of sediments collected by differently inclined sediment traps in Comau Fjord ...

• Main Authors: Gottschlich, Svantje, Laudien, Jürgen, Häussermann, Verena, Försterra, Günter
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: granulometry; sediment analysis; Sediment trap ID; Angle range, degrees; Size fraction < 0.040 µm, >14.6 phi; Size fraction 0.043-0.040 µm, 14.5-14.6 phi; Size fraction 0.046-0.043 µm, 14.4-14.5 phi; Size fraction 0.050-0.046 µm, 14.3-14.4 phi; Size fraction 0.053-0.050 µm, 14.2-14.3 phi; Size fraction 0.057-0.053 µm, 14.1-14.2 phi; Size fraction 0.061-0.057 µm, 14.0-14.1 phi; Size fraction 0.065-0.061 µm, 13.9-14.0 phi; Size fraction 0.070-0.065 µm, 13.8-13.9 phi; Size fraction 0.075-0.070 µm, 13.7-13.8 phi; Size fraction 0.081-0.075 µm, 13.6-13.7 phi; Size fraction 0.086-0.081 µm, 13.5-13.6 phi; Size fraction 0.093-0.086 µm, 13.4-13.5 phi; Size fraction 0.099-0.093 µm, 13.3-13.4 phi; Size fraction 0.106-0.099 µm, 13.2-13.3 phi; Size fraction 0.114-0.106 µm, 13.1-13.2 phi; Size fraction 0.122-0.114 µm, 13.0-13.1 phi; Size fraction 0.131-0.122 µm, 12.9-13.0 phi; Size fraction 0.140-0.131 µm, 12.8-12.9 phi; Size fraction 0.150-0.140 µm, 12.7-12.8 phi; Size fraction 0.161-0.150 µm, 12.6-12.7 phi; Size fraction 0.173-0.161 µm, 12.5-12.6 phi; Size fraction 0.185-0.173 µm, 12.4-12.5 phi; Size fraction 0.198-0.185 µm, 12.3-12.4 phi; Size fraction 0.213-0.198 µm, 12.2-12.3 phi; Size fraction 0.228-0.213 µm, 12.1-12.2 phi; Size fraction 0.244-0.228 µm, 12.0-12.1 phi; Size fraction 0.262-0.244 µm, 11.9-12.0 phi; Size fraction 0.280-0.262 µm, 11.8-11.9 phi; Size fraction 0.301-0.280 µm, 11.7-11.8 phi; Size fraction 0.322-0.301 µm, 11.6-11.7 phi; Size fraction 0.345-0.322 µm, 11.5-11.6 phi; Size fraction 0.370-0.345 µm, 11.4-11.5 phi; Size fraction 0.397-0.370 µm, 11.3-11.4 phi; Size fraction 0.425-0.397 µm, 11.2-11.3 phi; Size fraction 0.456-0.425 µm, 11.1-11.2 phi; Size fraction 0.488-0.456 µm, 11.0-11.1 phi; Size fraction 0.523-0.488 µm, 10.9-11.0 phi; Size fraction 0.561-0.523 µm, 10.8-10.9 phi; Size fraction 0.601-0.561 µm, 10.7-10.8 phi; Size fraction 0.644-0.601 µm, 10.6-10.7 phi; Size fraction 0.691-0.644 µm, 10.5-10.6 phi; Size fraction 0.740-0.691 µm, 10.4-10.5 phi; Size fraction 0.793-0.740 µm, 10.3-10.4 phi; Size fraction 0.850-0.793 µm, 10.2-10.3 phi; Size fraction 0.911-0.850 µm, 10.1-10.2 phi; Alfred Wegener Institute
• Online Access: https://dx.doi.org/10.1594/pangaea.955324; https://doi.pangaea.de/10.1594/PANGAEA.955324

The meltwater reaching Chile's Comau Fjord carries glacial sediment, resulting in a high sediment input in the fjord system. To record the sedimentary material, sediment traps (0.5 m long PVC pipes closed at the bottom end, diameter 0.05 m) were attached at different angles of inclination to large concrete pipes with screw clamps. After four weeks, these were sealed and recovered by research divers. The sediment was transferred to vessels for sedimentation and the clear supernatant was removed 48 hours later. The remaining sediment-seawater mixture was fixed with formol (final concentration 4%). Samples were treated with hydrogen peroxide and acetic acid to remove organic content. For particle size determination, samples were analysed using a Laser Particle Analyser (Cilias, Quantachrome Cilas 1180 Particle Analyser, Orleans, France). In this method, the grain size is measured based on the different diffraction of a laser beam on the particles. The evaluation of the laser granulometry took place using ... : Data are given in volume percentage; samples treated with hydrogen peroxide and acetic acid; error is < 1%. This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de). ...