Aliff Meagan N, Reavie Euan D, Post Sara P, Zanko Lawrence M
Natural Resources Research Institute, University of Minnesota Duluth, Duluth, MN, USA.
PeerJ. 2020 May 6;8:e9053. doi: 10.7717/peerj.9053. eCollection 2020.
The Laurentian Great Lakes are the most studied system in lake geochemistry and have well-preserved chronological profiles. Metals play numerous critical roles in natural and anthropogenic characteristics of lake ecosystems, so patterns in the historical records of metals from sedimentary cores provide important information about environmental baselines and human impacts. Relevant studies of Great Lakes geochemistry are listed, and we follow with encyclopedic descriptions of metals and their oxides in the lakes. These descriptions include likely natural and anthropogenic sources of elements, their known history from previous paleoecological studies, and their status as potential contaminants of concern. Despite the well-studied geology of the Great Lakes catchment, sourcing elements was sometimes difficult due to materials often being moved long distances by glaciation and the global prevalence of atmospheric pollutants. We summarized available information on metals and their roles as geochemical indicators in the Great Lakes.
劳伦琴五大湖是湖泊地球化学领域研究最多的系统，拥有保存完好的年代学剖面。金属在湖泊生态系统的自然和人为特征中发挥着众多关键作用，因此沉积岩芯中金属的历史记录模式提供了有关环境基线和人类影响的重要信息。列出了五大湖地球化学的相关研究，随后我们对湖泊中的金属及其氧化物进行了百科全书式的描述。这些描述包括元素可能的自然和人为来源、先前古生态研究中已知的历史以及它们作为潜在关注污染物的状况。尽管五大湖流域的地质情况已得到充分研究，但由于冰川作用常常使物质远距离移动以及大气污染物在全球普遍存在，确定元素来源有时仍很困难。我们总结了五大湖金属的现有信息及其作为地球化学指标的作用。
