Grobe, H (1987): Fig. 2: Comparison of the number of grains counted in a sieve analysis. doi:10.1594/PANGAEA.756793, Supplement to:Grobe, Hannes (1987): A simple method for the determination of ice-rafted debris in sediment cores. Polarforschung, 57(3), 123-126, hdl:10013/epic.29587.d001
The distribution of ice rafted debris (IRD) is an important parameter in glaciomarine sediments. A simple method is presented allowing the determination of the IRD-content by counting the gravel fraction of the X-radiographs which are generally taken during sarnpling. In comparison with sieve analyses corresponding values are obtained by both methods. However, more information can be made available in a shorter time by this method.