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Nutrients, sea-level and palaeoceanography

Haydon Mort

Thursday, 03 Sep 2009 11:15 UTC

Does anyone know of any work that has been done on the global biogeochemical implications of massive sea-level inundations; such as those which occurred in the Cretaceous and more recently during the Holocene?

Geologists are normally split between sea-level transgressions as a productivity driver and a productivity suppresser. The first group suggests inundation probably reworked sediment and released a nutrients which were latently available on previously dry land. The second group say that the increased continental shelf area would have enhanced organic carbon and nutrient burial areas and thus decreased nutrient availability.

Has any work been done to see who is right? I have not found any thus far.


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