云贵湖泊现代沉积物早期成岩过程中微量重金属地球化学行为研究

Geochemical Behavior of Trace Heavy Metals During Earlydiagenetic Processes of Modern Lacustrine Sediments in Yunnan and Guizhou Province, Southwest China

云贵湖泊现代沉积物早期成岩过程中微量重金属地球化学行为研究＠马英军￥中国科学院地球化学研究所湖泊沉积物，孔隙水，微量重金属，早期成岩作用，地球化学相云贵湖泊现代沉积物早期成岩过程中微量重金属地球化学行为研究马英军（中国科学院地球化学研究所，贵阳５５０００２...

Lugu and Erhai Lake in YunnanGuizhou plateau are different in many aspects, including redox condition, affecting degree of human activities, water depth, residence time and supply coefficient of water etc.. Based on fine research of many vertical profiles of trace heavy metals in pore water and sediments in Lugu and Erhai Lake, combining with analysis of phase association of trace heavy metals in sediments and soil, the author discussed the law and micromechanism of remobilization and transformation of trace heavy metals during early diagenetic processes, quantitatively evaluated early diagenetic perturbation characteristics, phasespecific transformation and ecoenvironmental effects recorded by the variation of trace heavy metals in profiles, qualititatively distinguished natural characteristics from artificial effects from trace heavy metal recorders, and reconstructed regional history of climatic and environmental evolution of Lugu and Erhai Lake.