Publication Date:
2020-06-24
Description:
In this work, multicomponent transport-reaction models were successfully applied to analyse and assess the effects of human interventions and natural, large-scale perturbations of the deep-sea floor. In particular, two scenarios were studied that are suitable as case studies for a variety of possible impacts. Firstly, the removal of the uppermost bioturbated sediment layer due to deepsea mining of manganese nodules in the Peru Basin is considered, and secondly, the disposal of highly reactive material on the deep-sea floor of the South China Sea, i.e. the Mount Pinatubo ash fallout of 1991, is evaluated. In addition, the current theoretical background for equilibrium calculations is expanded, and by this a mathematical tool is provided that, for example, may allow an evaluation of the influence of calcite dissolution and precipitation at the sea floor on the global C02 budget.
Type:
Thesis
,
NonPeerReviewed
Format:
text
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