海洋科学Issue(6)：83-88,6.
江苏灌河口沉积物粒度组分特征及沉积速率研究
Study on grain-size characteristics and deposition rate in the Guanhe Estuary of Jiangsu Province
摘要
Abstract
In order to explore the deposition environment of the Guanhe Estuary, grain-size analysis of sediment GH-1 drilling, retrieved from Guanhe Estuary, was carried out by using a Malvern 2000 grain-size analyzer. The environmentally sensitive grain size components were calculated according to variations in the grain-size standard deviation. The deposition environment was studied combined with the analysis of grain size probability curve. At the same time, the environmental implications were discussed. Two environmentally sensitive grain-size compo-nents, 250~32 μm and 32~16 μm, were identified, representing two dynamic mechanisms in the process of sedi-mentary, storm flow and coastal current. The variation of deposition rate and sedimentary environment can be ob-tained by using the 210Pb technique. The results show that the deposition rate was larger at 1.9 cm/a, and the deposi-tion rate of the last 20 cm was smaller at 0.4 cm/a.关键词
灌河口/环境敏感粒度组分/210Pb/沉积变化Key words
the Guanhe Estuary/environmentally sensitive grain size component/210Pb/deposition variation分类
海洋科学引用本文复制引用
徐芳,冯秀丽,陈斌林,贺心然,魏飞..江苏灌河口沉积物粒度组分特征及沉积速率研究[J].海洋科学,2013,(6):83-88,6.基金项目
江苏省环保科技项目(2010043) （2010043）
连云港市科技发展计划项目(SH1113) （SH1113）
