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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-contents by counting the gravel fraction of the x-radiographs which are generally taken during sampling. 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.
Hannes Grobe (Thu,) studied this question.
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