STUDY ON SPECIFIC GRAVITY OF MODERN SEDIMENTS IN THE HUTUO RIVER

After the analysis of the specific gravity of the modern sediments of the Hutuo River, the authors hold that specific gravity of sediments in channel facies,channel bar facies and point bar facies Inereases with the decrease of grain size along the river. As for the sediments in the natural levee facies, the specific gravity becomes smaller with the decrease of grain size from up-stream to down-stream. The specific gravity becomes smaller gradually with the decrease of grain size from the central part of the river to the banks in the cross section of the river along which the channel facies, channel bar facies, point bar facies and natural levee facies are well arranged in order. In the vertical section, just as described in this paper, the specific gravity of modern sediments varies in different sub-facies.