Anthropocene geochemistry of metals in sediment cores from the Laurentian Great Lakes.

ABSTRACT: Geochemical analyses applied to lake sedimentary records can reveal the history of pollution by metals and the effects of remedial efforts. Lakes provide ideal environments for geochemical studies because they have steady deposition of fine grained material suitable for fixation of pollutants. The Laurentian Great Lakes are the most studied system in this field, and they have well-preserved chronological profiles. To date, this important system has been considered in parts for inorganic geochemistry, hampering basin-wide conclusions regarding metal contamination. We filled spatial and temporal gaps in a comprehensive geochemical analysis of 11 sediment cores collected from all five Great Lakes. Hierarchical cluster analysis of all Great Lakes samples divided the metal analytes into five fu

SUBMITTER: Aliff MN 

PROVIDER: S-EPMC7210812 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature