Abstract
Several types of anthropogenic sand-sized particles have been identified in Lake Erie sediments. They occur most abundantly along shipping lanes and in the southern part of the lake offshore from major industrial ports. Their composition and distribution suggest that the four most common types are derived from the activities of coal-burning and coal-carrying ships. There is probably little impact on the chemistry of the lake system from these sand-sized particles. However, this study indicates that a major increase in the numbers and variety of anthropogenic particles occurred early in the 20th century and they therefore provide a useful time horizon for the study of modern sedimentary processes.
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