Welcome to visit Geoscience!

Geoscience ›› 2020, Vol. 34 ›› Issue (05): 928-935.DOI: 10.19657/j.geoscience.1000-8527.2020.059

• Geochemistry • Previous Articles     Next Articles

Heavy Metal Contents, Spatial Distributions and Their Relationships with the Grain Size of Surficial Sediments in Dingziwan, Shandong

TANG Shikai1,2(), ZHANG Jie1,2(), YU Xiaojing1,2, TAO Zhibin1,2, LI Jinpeng1,2   

  1. 1. Marine Geological Exploration Institute of Shandong Province, Yantai,Shandong 264004, China
    2. No.3 Exploration Institute of Geology and Mineral Resources of Shandong Province, Yantai,Shandong 264004, China
  • Received:2020-06-02 Revised:2020-08-12 Online:2020-10-28 Published:2020-10-29
  • Contact: ZHANG Jie

Abstract:

To elucidate the regularity of heavy metal content and grain size, 126 surficial sediment samples were collected from Dingziwan in Shandong Province. The sediment types and spatial distributions of heavy metal contents were summarized. Accordingly, the heavy metal contents, spatial distributions, and their relations with grain size were analyzed. The results show that sediment types are fan-shaped and grain size decreases offshore.Contents of Cr, Pb, Cd, and Hg increase, while the As content first decreases and then increases.The relations between heavy metal contents and grain size vary in different sediments.In sand, sandy silt and silt, clear positive correlation is present between Cr content and the average grain size.There is negative correlation between As content and the average grain size for sand, and positive correlation between As content and the average grain size for silt.The positive correlation between Hg content and the average grain size for sandy silt is the same as silt.There is no discernible correlation between other heavy metal contents and sediment average grain size.

Key words: grain size, heavy metal content, sediment, Dingziwan, Shandong

CLC Number: