泥質堆積物の粒度分析における超音波篩分法と比重計法の比較

概要

論文の詳細を見る
The ultrasonic sieving method is a new and useful tool for grainsize analysis of fine-grained muddysediments. The new method was compared with the traditional hydrometer method. The ultrasonicsieving method shows a little wide variation. Ultrasonic vibration is often used to disperse the sample before the hydrometer analysis. It decreasea the grainsize of muddy sediments, but the sediments attains a "terminal distribution" in grain size after about 30 minutes of vibration. The weigted mean of the analysis by ultrasonic sieving method is smaller than the analysis of unvibrated sample by the hydrometer method, and is concordant with the analysis of sample in terminal distribution by the hydrometer method.
堆積学研究会の論文