黄骅港近海区沉积物组成与分布特征

依据2004年表层及柱状样取样资料和以往多年近海区沉积物取样资料,对近年的底质变化特征进行了系统的分析。分析结果表明,沉积物在平面上的分布仍遵循航道以南粗于航道以北,浅水区粗于深水区,自南向北细颗粒泥沙含量为逐渐增加的趋势。该海区粉砂层的规模不大,南北两滩柱状样比较,其共性为表层向下粒度均由粗转细,相异点为南滩的粉砂层分布范围广、厚度大、粒度粗。

Composition and Distribution of Deposits in the Sea Area near Huanghua Harbor

Based on the data obtained from surface and columnar samples in 2004 and the data from deposits samples in the offshore waters in the past many years,variation characteristics of the bed-load in the recent years are analyzed.The results shown that the deposits is still rougher to the south of the channel than to the north and rougher in the shallow area than in the deep area,and contend of fine sand tends to increase gradually from south to north.It's concluded from columnar sample comparison,the range of the silt sand is not large,the grain-sizes of both of the south and north banks varies from rough to fine from the surface to the bottom,and the silt layer of the south bank is wider in distribution,larger in thickness and rougher in grain-size.