Chú thích Sapropel

  1. ↑ Eelco J. Rohling, 2001, The Dark Secret of the Mediterranean, 2001, School of Ocean and Earth Science, Southampton Oceanography Centre
  2. ↑ Philip A. Meyers and Michela Arnaboldia (2008). “Paleoceanographic implications of nitrogen and organic carbon isotopic excursions in mid-Pleistocene sapropels from the Tyrrhenian and Levantine Basins, Mediterranean Sea”. Palaeogeography Palaeoclimatology Palaeoecology. 266: 112. doi:10.1016/j.palaeo.2008.03.018.

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