DOI: 10.1016/j.palaeo.2013.04.006
论文题名: Late cretaceous orbitally-paced carbon isotope stratigraphy from the bottaccione gorge (Italy)
作者: Sprovieri M. ; Sabatino N. ; Pelosi N. ; Batenburg S.J. ; Coccioni R. ; Iavarone M. ; Mazzola S.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 379-380 起始页码: 81
结束页码: 94
语种: 英语
英文关键词: Astronomical tuning
; Bottaccione section
; Carbon isotopes stratigraphy
; Late Cretaceous
; Long-term cycles
英文摘要: A refined astronomical tuning of the upper Albian-lower Campanian is proposed from the Bottaccione reference section (Gubbio, central Italy). Long-term eccentricity cycles filtered from a high-resolution δ13C record were tuned to the highly stable 405 kyr cycles of the new La2010 astronomical solution for the Earth's orbital elements. The achieved orbital tuning provides a new precise, and accurate age model for dating biostratigraphic, magnetostratigraphic and carbon isotope events through a ~23 Myr long record. Cycles of ~8.0, 4.7, 3.4 and ~2.4 Myr modulate the entire δ13C record, thus extending their detection from the Cenozoic to ~100 Ma and represent primary and stable long-term oscillation modes of Earth's climate-ocean system. Although an ultimate driver of these long-term periodicities is lacking, we speculate that specifically the periodicity at 4.7 Myr, represents a homologue of the present eccentricity grand-cycles, evolved by the chaotic behaviour of solar system planets during the Mesozoic. The long-term periodicities potentially reflect an unexplored expression of the low-frequency response of the carbon cycle to global biogeochemical dynamics of major nutrients, particularly phosphorus, associated with modulation of inputs to the ocean in turn triggered by high-order marine transgressions and formation of highly productive shelf seas. This very long-term eccentricity control, modulated by periodic low-energy cycles, is suggested to play a crucial role in carbon cycling, controlling a chain of climate sensitive global biogeochemical processes on the Earth. Finally, these grand-cycles provide a potential tool for geological correlation and provide a robust constraint for accurate calculation of the orbital evolution of the Solar System. © 2013 Elsevier B.V. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69732
Appears in Collections: 过去全球变化的重建
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作者单位: Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche (IAMC-CNR), Capo Granitola, Via del Faro 3, 91021, Campobello di Mazara (Tp), Italy; Dipartimento di Scienze della Terra, Della Vita e dell'Ambiente, Università degli Studi 'Carlo Bo', Campo Scientifico 'E.Mattei', Localita' Crocicchia, 61029, Urbino, Italy; Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche (IAMC-CNR), Napoli, Calata Porta di Massa (Interno Porto di Napoli), 80133, Napoli, Italy; SEES, University of Portsmouth, Burnaby Road, PO1 3QL Portsmouth, United Kingdom
Recommended Citation:
Sprovieri M.,Sabatino N.,Pelosi N.,et al. Late cretaceous orbitally-paced carbon isotope stratigraphy from the bottaccione gorge (Italy)[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,379-380