Long-term organic carbon preservation enhanced by iron and manganese.

ABSTRACT: The balance between degradation and preservation of sedimentary organic carbon (OC) is important for global carbon and oxygen cycles¹. The relative importance of different mechanisms and environmental conditions contributing to marine sedimentary OC preservation, however, remains unclear^2-8. Simple organic molecules can be geopolymerized into recalcitrant forms by means of the Maillard reaction⁵, although reaction kinetics at marine sedimentary temperatures are thought to be slow^9,10. More recent work in terrestrial systems suggests that the reaction can be catalysed by manganese minerals^11-13, but the potential for the promotion of geopolymerized OC formation at marine sedimentary temperatures is uncertain. Here we present incubation

SUBMITTER: Moore OW 

PROVIDER: S-EPMC10499600 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature