Stratigraphy articles within Nature Communications

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  • Article
    | Open Access

    An 80 thousand-year-long period of extreme non-geocentric dipole magnetic fields is recorded in Late Cambrian carbonate rocks of South China, suggesting that 495 million years ago Earth’s inner core had not grown large enough to stabilize the dynamo.

    • Yong-Xiang Li
    • , John A. Tarduno
    •  & Zhenyu Yang

  • Article
    | Open Access

    South American cordilleran orogenic systems have repeated complex magmatic and deformation histories. Here the authors analyze detrital zircons found in the Amazon deep-sea fan that record mountain-building events and reveal cycles of orogenesis with periods of ~60–90 Myr since the Phanerozoic.

    • Cody C. Mason
    • , Brian W. Romans
    •  & Andrea Fildani

  • Article
    | Open Access

    The Early Cretaceous Aptian stage represents an interval of major dramatic climate changes, but there is no consensus on its lower boundary age. Here, the authors present an astro-chronological framework that offers new age constraints on the onset and duration of Aptian ocean anoxic events and the ‘cold snap’, among other significant climatic events.

    • C. G. Leandro
    • , J. F. Savian
    •  & R. I. F. Trindade

  • Article
    | Open Access

    The Cambrian is the most poorly dated period of the past 541 million years. Here, the authors present a new astronomical time scale, allowing for a first assessment, in numerical time, of the evolution of major biotic and abiotic changes that characterized the late Cambrian Earth.

    • Zhengfu Zhao
    • , Nicolas R. Thibault
    •  & Arne T. Nielsen

  • Article
    | Open Access

    The Middle Ordovician icehouse has been suggested to be sparked by extra-terrestrial dust associated with an asteroid break-up. Here, the authors use an astronomically calibrated timescale to decouple millennia-scale climate and biodiversity change from the meteorite shower 468.4 million years ago.

    • Jan Audun Rasmussen
    • , Nicolas Thibault
    •  & Christian Mac Ørum Rasmussen

  • Article
    | Open Access

    The Paleocene–Eocene boundary coincided with runaway global warming possibly analogous to future climate change, but the sources of greenhouse gasses have remained unresolved. Here, the authors reveal volcanism triggered initial warming, and subsequent carbon was released after crossing a tipping point.

    • Sev Kender
    • , Kara Bogus
    •  & Melanie J. Leng

  • Article
    | Open Access

    Northeast Atlantic climate shifted into the Quaternary Ice Age around 2.6 Myr ago. Here, the authors use 3D seismic data from the northern North Sea to document detailed changes in continental-margin sedimentary architecture spanning the transition from a fluvially dominated environment to an icehouse world.

    • H. Løseth
    • , J. A. Dowdeswell
    •  & D. Ottesen

  • Article
    | Open Access

    There is a strong correlation between submarine slope failures and the occurrence of gas hydrates. Here, the authors use a combination of seismic data and numerical modelling to show that overpressure at the gas hydrate stability zone leads to potential destabilization of the slope and submarine landslides.

    • Judith Elger
    • , Christian Berndt
    •  & Wolfram H. Geissler

  • Article
    | Open Access

    The cause of the end-Triassic extinction remains controversial. Here, the authors present U-Pb age data showing that magmatic activity occurred 100 kyr before the earliest known eruptions, which links to changes in climate and biotic records indicating the importance of understanding the intrusive record.

    • J.H.F.L. Davies
    • , A. Marzoli
    •  & U. Schaltegger

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