本文在我国近海海洋环境综合调查（908专项）ST09区块2006年12月和2007年10月两个航次的基础上，对北部湾北部海域表层沉积物和柱状沉积物中的重金属进行了总量和形态分析，研究了沉积物中重金属的总量的平面和垂直分布及各形态的分布，评价了沉积环境并对沉积历史进行了探讨。结果表明： （1）表层沉积物Cu的含量为14.22μg/g～26.68μg/g，平均18.21μg/g；Pb的含量为31.85μg/g～54.59μg/g，平均38.88μg/g；Zn的含量为60.19μg/g～90.93μg/g，平均78.00μg/g；Cr的含量为29.95μg/g～67.95μg/g，平均48.46μ...Basing on the environmental investigation of ”908” project in Beibu Gulf during December 2006～October 2007, the total contents and speciation of heavy metals in the surface sediments and core sediments were analyzed. The contents of heavy metals and their speciation, horizontal and vertical distribution patterns, depositional environment, and the depositional history were evaluated as well. The ma...学位：理学硕士院系专业：海洋与环境学院海洋学系_海洋化学学号：2242006115229
