Organic carbon burial is paced by a ~173-ka obliquity cycle in the middle to high latitudes
He Huang, Yuan Gao, Chao Ma, Matthew M. Jones, Christian Zeeden, Daniel Ibarra, Huaichun Wu, Chengshan Wang
Abstract
The ~173-ka obliquity-related forcing signal was amplified by internal climate feedbacks of the carbon cycle under different geographic and climate conditions, which control a series of sensitive climatic processes. In addition, our new and compiled records from multiple proxies confirm the presence of the obliquity amplitude modulation (AM) cycle during the Mesozoic and Cenozoic and indicate the usefulness of the ~173-ka cycle as geochronometer and for paleoclimatic interpretation.
Topics & Concepts
Carbon cycleForcing (mathematics)LatitudeMiddle latitudesAtmospheric sciencesCarbon fibersNonlinear systemOrbital forcingAstrobiologyEnvironmental scienceGeologyClimatologyPhysicsPaleontologyAstronomyBiologyMathematicsEcologyGlacial periodEcosystemComposite numberQuantum mechanicsAlgorithmGeology and Paleoclimatology ResearchPaleontology and Stratigraphy of FossilsGeological and Geochemical Analysis