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随着国内外分析仪器的日益进步,粒度分析方法也有很大进展,目前比较先进的有激光测定或用静电测比表面积的空气透过法等,能快速精确地测得粒径分布。通常还有光学透过法或沉降天平法,它们已逐步取代古老的沙巴宁法、比重计法或吸管法。本文简要介绍自动记录沉降法在冰川沉积物粒度分析上的运用。所用仪器为国产KCY型和TZC-1型两种自记沉降仪,由于冰碛物
With the progress of analytical instruments at home and abroad, the particle size analysis method has also made great progress. At present, the more advanced laser measurement or air permeation method with electrostatic specific surface area can quickly and accurately measure the particle size distribution. Often there are optical or sedimentation scales, which have gradually superseded the old Sabanin, hydrometer or pipetting methods. This article briefly introduces the application of automatic record sedimentation method in glacial sediment particle size analysis. Instrument used for the domestic KCY type and TZC-1 type two self-bearing settlement, the moraine