Aragonite and calcite preservation in sediments from Lake Iznik related to bottom lake oxygenation and water column depth

  title={Aragonite and calcite preservation in sediments from Lake Iznik related to bottom lake oxygenation and water column depth},
  author={Patricia Roeser and Sven-Oliver Franz and Thomas Litt},
This study examines the forcing mechanisms driving long‐term carbonate accumulation and preservation in lacustrine sediments in Lake Iznik (north‐western Turkey) since the last glacial. Currently, carbonates precipitate during summer from the alkaline water column, and the sediments preserve aragonite and calcite. Based on X‐ray diffraction data, carbonate accumulation has changed significantly and striking reversals in the abundance of the two carbonate polymorphs have occurred on a decadal… 
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