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Geologic constraints on the chaotic diffusion of the solar system

2004; Geological Society of America; Volume: 32; Issue: 11 Linguagem: Inglês

10.1130/g20750.1

1943-2682

Heiko Pälike, J. Laskar, Nicholas J Shackleton,

Planetary Science and Exploration

Research Article| November 01, 2004 Geologic constraints on the chaotic diffusion of the solar system Heiko Pälike; Heiko Pälike 1Department of Geology and Geochemistry, Stockholm University, S-10691 Stockholm, Sweden, and Godwin Laboratory, University of Cambridge, New Museum Site, Pembroke Street, Cambridge CB2 3RS, UK Search for other works by this author on: GSW Google Scholar Jacques Laskar; Jacques Laskar 2Astronomie et Systèmes Dynamiques, Institut de Mécanique Céleste et de Calcul des Éphémérides CNRS UMR8028, 77 Avenue Denfert-Rocherau, 75014 Paris, France Search for other works by this author on: GSW Google Scholar Nicholas J. Shackleton Nicholas J. Shackleton 3Godwin Laboratory, University of Cambridge, New Museum Site, Pembroke Street, Cambridge CB2 3RS, UK Search for other works by this author on: GSW Google Scholar Author and Article Information Heiko Pälike 1Department of Geology and Geochemistry, Stockholm University, S-10691 Stockholm, Sweden, and Godwin Laboratory, University of Cambridge, New Museum Site, Pembroke Street, Cambridge CB2 3RS, UK Jacques Laskar 2Astronomie et Systèmes Dynamiques, Institut de Mécanique Céleste et de Calcul des Éphémérides CNRS UMR8028, 77 Avenue Denfert-Rocherau, 75014 Paris, France Nicholas J. Shackleton 3Godwin Laboratory, University of Cambridge, New Museum Site, Pembroke Street, Cambridge CB2 3RS, UK Publisher: Geological Society of America Received: 19 Apr 2004 Revision Received: 22 Jul 2004 Accepted: 27 Jul 2004 First Online: 03 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2004) 32 (11): 929–932. https://doi.org/10.1130/G20750.1 Article history Received: 19 Apr 2004 Revision Received: 22 Jul 2004 Accepted: 27 Jul 2004 First Online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Heiko Pälike, Jacques Laskar, Nicholas J. Shackleton; Geologic constraints on the chaotic diffusion of the solar system. Geology 2004;; 32 (11): 929–932. doi: https://doi.org/10.1130/G20750.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The correlation of Earth's orbital parameters with climatic variations has been used to generate astronomically calibrated geologic time scales of high accuracy. However, because of the chaotic behavior of the solar system, two initially close calculations of Earth's orbit diverge exponentially and have a large uncertainty beyond several million years in the past. This chaotic behavior is related to a combination of angles in the precession motion of the orbits of Earth and Mars, 𝛉, which currently is in resonance. How long 𝛉 stays in libration critically depends on the dynamical model and initial conditions for the solar system. Here we show that geologic data can differentiate between astronomical solutions that do and do not exhibit a transition in 𝛉 since 40 Ma and that sediments can thus provide a history for the evolution of 𝛉. We find that the chaotic transition of 𝛉 from libration to circulation did not occur after ca. 30 Ma. We can thus constrain the chaotic diffusion of the solar system in the past, and our results provide new and challenging constraints for astronomical models. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.