摘要
本文首次较全面地阐述了现代滦河口地区,由陆到海不同区段沉积物中有机质、N_t、P_2O_5、CaCO_3、Fe_2O_3MnO、MgO等化学成分的含量和它们在底质中的分布特征,以及受粒度分异作用控制的机理,揭示了化学成分之间的相关关系及其原因。获得了在现代滦河口较齐全的地貌类型中,不同化学成分的含量。通过与黄河口和黄、渤海的比较.得出沉积物中CaCO_3的含量低,和各化学成分之间彼此伴生共同沉积,是滦河口沉积化学的重要特征。
This paper has, for the first time, made a relatively comprehensive exposition of the contents and distributional characteristics of the chemical compositions such as organic matter. Nt, P2O5, CaCO3, Fe2O3, MnO, MgO of submarine sediments in different districts around the mouth of modern Luanhe River, and explained the mechanism of their being controlled by grainsize variation. The paper reveals the inter-relationships between the preceding chemical composition and finds out the contents of various chemical compositions of the sediments in all the different geomorphic units around the mouth of modern Luanhe River. Compared with the data on the Yellow River estuary, Bohai Sea and Yellow Sea, the sedimentary chemistry of the mouth of Luanhe River features low CaCO3 content and mutual associated deposition.
出处
《海洋通报》
CAS
CSCD
北大核心
1990年第3期75-83,共9页
Marine Science Bulletin
