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Abstract

Abstract

Glaciers affect biogeochemistry of landscapes through their sediments. Glacial erosion rates are high and the sediments produced are distinctively fine grained, hence glaciers can be thought of as producers of mineral surface area. Although this mineral surface area is highly reactive, temperature limits chemical weathering fluxes from glaciers and their surroundings. More significant effects may be associated with silt deposited in loess and on continental margins. Thick deposits in both settings contribute to carbon cycling through both silicate weathering and organic carbon burial. The impact of glaciers on biogeochemical cycles will be long-lasting, as the legacy of glacial erosion processes continues as long as sediment yields are elevated.

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/content/journals/10.1146/annurev.earth.35.031306.140033
2007-05-30
2024-06-17
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  • Article Type: Review Article
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