论文部分内容阅读
通过对兴隆沙地区沉积物环境磁学特征分析,发现该地区磁性矿物主要以来源于长江亚铁磁性矿物为主,并含有少量的反铁磁性矿物;通过微体古生物特征分析,发现长江口北支沉积物主要由潮流流携带而来.综合环境磁学和微体古生物学特征,得出该地区沉积物的来源是多源的,以长江源为主.
By analyzing the magnetocentric characteristics of the sediments in Xinglongsha area, it is found that the magnetic minerals in this area are mainly derived from the ferrimagnetism minerals of the Yangtze River and contain a small amount of antiferromagnetic minerals. According to the analysis of the paleontology characteristics of the microfacies, it is found that the northern part of the Yangtze Estuary The sediments are mainly carried by tidal currents. Based on the characteristics of environmental magnetism and paleontology, it is concluded that the source of sediments in this area is multi-sourced and mainly Yangtze River source.