Browse Articles

  • Article |

    The shape and internal structure of bilobate comet 67P is controlled by shear deformation inducing mechanically driven erosion along shear fracture networks, according to a 3D analysis of images from the Rosetta mission.

    • C. Matonti
    • , N. Attree
    • , O. Groussin
    • , L. Jorda
    • , S. Viseur
    • , S. F. Hviid
    • , S. Bouley
    • , D. Nébouy
    • , A.-T. Auger
    • , P. L. Lamy
    • , H. Sierks
    • , G. Naletto
    • , R. Rodrigo
    • , D. Koschny
    • , B. Davidsson
    • , M. A. Barucci
    • , J.-L. Bertaux
    • , I. Bertini
    • , D. Bodewits
    • , G. Cremonese
    • , V. Da Deppo
    • , S. Debei
    • , M. De Cecco
    • , J. Deller
    • , S. Fornasier
    • , M. Fulle
    • , P. J. Gutiérrez
    • , C. Güttler
    • , W.-H. Ip
    • , H. U. Keller
    • , L. M. Lara
    • , F. La Forgia
    • , M. Lazzarin
    • , A. Lucchetti
    • , J. J. López-Moreno
    • , F. Marzari
    • , M. Massironi
    • , S. Mottola
    • , N. Oklay
    • , M. Pajola
    • , L. Penasa
    • , F. Preusker
    • , H. Rickman
    • , F. Scholten
    • , X. Shi
    • , I. Toth
    • , C. Tubiana
    •  & J.-B. Vincent
  • Article |

    The ice volume of glaciers outside the Greenland and Antarctic ice sheets totals about 158,000 km3, with about 27% less ice in High Mountain Asia than thought, according to multiple models that estimate ice thickness from surface characteristics.

    • Daniel Farinotti
    • , Matthias Huss
    • , Johannes J. Fürst
    • , Johannes Landmann
    • , Horst Machguth
    • , Fabien Maussion
    •  & Ankur Pandit
  • Article |

    Many lakes in arid, organic-poor permafrost landscapes have a negligible role in mineralizing terrestrial carbon, according to metabolic analyses of lakes in the arid Yukon Flats Basin.

    • Matthew J. Bogard
    • , Catherine D. Kuhn
    • , Sarah Ellen Johnston
    • , Robert G. Striegl
    • , Gordon W. Holtgrieve
    • , Mark M. Dornblaser
    • , Robert G. M. Spencer
    • , Kimberly P. Wickland
    •  & David E. Butman
  • News & Views |

    A magnitude 7.5 strike-slip earthquake that struck Palu, Indonesia, in 2018 unexpectedly generated a devastating tsunami. Seismic data reveal that its rupture propagated fast, at supershear speed. Whether the two are connected remains to be seen.

    • P. Martin Mai
  • Article |

    Melting of sedimentary rocks in the continental back-arc is cyclical with peaks of magmatism every 10 to 15 million years, according to zircon ages from Paleozoic western Gondwana margin samples.

    • Lauren C. Wolfram
    • , Roberto F. Weinberg
    • , Oliver Nebel
    • , Kais Hamza
    • , Pavlína Hasalová
    • , Jitka Míková
    •  & Raul Becchio
  • Editorial |

    Wildfires are a natural part of many ecosystems, but they can become destructive and less predictable, especially when the system is perturbed. Human activities and climate change lead to interactions with fire dynamics that need our attention.

  • Article |

    A separate mantle domain, distinct from both the Pacific and Indian domains, exists beneath the Southern Ocean, according to isotope compositions of samples from the Australian–Antarctic ridge.

    • Sung-Hyun Park
    • , Charles H. Langmuir
    • , Kenneth W. W. Sims
    • , Janne Blichert-Toft
    • , Seung-Sep Kim
    • , Sean R. Scott
    • , Jian Lin
    • , Hakkyum Choi
    • , Yun-Seok Yang
    •  & Peter J. Michael
  • News & Views |

    Transition from a weak and erratic geomagnetic field to a more stable one around 560 million years ago, inferred from palaeomagnetic measurements, suggests that the inner core may have solidified around that time, much later than thought.

    • Peter Driscoll
  • Article |

    Explosive volcanic eruptions in the extratropics have cooled the climate in their hemisphere more than tropical eruptions, suggests an analysis of reconstructions since ad 750 and simulations with an atmosphere–aerosol model.

    • Matthew Toohey
    • , Kirstin Krüger
    • , Hauke Schmidt
    • , Claudia Timmreck
    • , Michael Sigl
    • , Markus Stoffel
    •  & Rob Wilson
  • News & Views |

    Differences between earthquake sequences in the crust and adjacent uppermost mantle at oceanic transform faults are revealed by a seafloor seismic experiment at the Blanco Transform Fault.

    • Jeffrey J. McGuire
  • Article |

    A large reservoir of organic carbon persists in oxic pelagic sediments for millions of years as demonstrated by samples from the North Atlantic and South Pacific. This predominantly proteinaceous carbon persists due to physical protection and adsorption to mineral surfaces.

    • Emily R. Estes
    • , Robert Pockalny
    • , Steven D’Hondt
    • , Fumio Inagaki
    • , Yuki Morono
    • , Richard W. Murray
    • , Dennis Nordlund
    • , Arthur J. Spivack
    • , Scott D. Wankel
    • , Nan Xiao
    •  & Colleen M. Hansel
  • Article |

    Earthquakes in the crust and mantle at transform faults are distinct yet coupled, with seismic swarms in the mantle apparently preceding large earthquakes, according to ocean-bottom seismic monitoring of the Blanco Transform Fault.

    • Václav M. Kuna
    • , John L. Nábělek
    •  & Jochen Braunmiller
  • Article |

    Fires and logging alter soil composition and result in a significant reduction of soil nutrients that lasts for decades after the disturbance, suggests an analysis of soil samples across a multi-century sequence in mountain ash forests.

    • Elle J. Bowd
    • , Sam C. Banks
    • , Craig L. Strong
    •  & David B. Lindenmayer
  • News & Views |

    Cumulative wildfires or prescribed burning produce different outcomes for the vegetation, suggest two long-term analyses of fire-affected ecosystems. Climate change and land management practices are altering how ecosystems function.

    • Mark A. Cochrane
  • Article |

    The sensitivity of the Antarctic ice sheet to obliquity increases when ice-sheet margins are exposed to the ocean, suggests an analysis of sediment core oxygen isotope records.

    • R. H. Levy
    • , S. R. Meyers
    • , T. R. Naish
    • , N. R. Golledge
    • , R. M. McKay
    • , J. S. Crampton
    • , R. M. DeConto
    • , L. De Santis
    • , F. Florindo
    • , E. G. W. Gasson
    • , D. M. Harwood
    • , B. P. Luyendyk
    • , R. D. Powell
    • , C. Clowes
    •  & D. K. Kulhanek
  • Article |

    Microbial degradation is a key process for removing aromatic hydrocarbons from the oceans, according to measurements in plankton and seawater with 64 types of polycyclic aromatic hydrocarbons and their microbial degradation genes in four ocean basins.

    • Belén González-Gaya
    • , Alicia Martínez-Varela
    • , Maria Vila-Costa
    • , Paulo Casal
    • , Elena Cerro-Gálvez
    • , Naiara Berrojalbiz
    • , Daniel Lundin
    • , Montserrat Vidal
    • , Carmen Mompeán
    • , Antonio Bode
    • , Begoña Jiménez
    •  & Jordi Dachs
  • News & Views |

    Atmospheric levels of chloroform, an ozone-depleting substance not part of the Montreal Protocol, have risen. The increase may be attributable to industrial emissions in Eastern China.

    • Susann Tegtmeier
  • Article |

    Atmospheric levels of chloroform increased after 2010, as a result of emissions in eastern China, according to analyses of measurements and inverse modelling.

    • Xuekun Fang
    • , Sunyoung Park
    • , Takuya Saito
    • , Rachel Tunnicliffe
    • , Anita L. Ganesan
    • , Matthew Rigby
    • , Shanlan Li
    • , Yoko Yokouchi
    • , Paul J. Fraser
    • , Christina M. Harth
    • , Paul B. Krummel
    • , Jens Mühle
    • , Simon O’Doherty
    • , Peter K. Salameh
    • , Peter G. Simmonds
    • , Ray F. Weiss
    • , Dickon Young
    • , Mark F. Lunt
    • , Alistair J. Manning
    • , Alicia Gressent
    •  & Ronald G. Prinn
  • Article |

    Delivery of fossil carbon to the oceans strongly increased about 15 kyr after the onset of the Palaeocene–Eocene Thermal Maximum as a result of oxidation of sedimentary carbon, suggests an analysis of geochemical measurements with a biomarker mixing model.

    • Shelby L. Lyons
    • , Allison A. Baczynski
    • , Tali L. Babila
    • , Timothy J. Bralower
    • , Elizabeth A. Hajek
    • , Lee R. Kump
    • , Ellen G. Polites
    • , Jean M. Self-Trail
    • , Sheila M. Trampush
    • , Jamie R. Vornlocher
    • , James C. Zachos
    •  & Katherine H. Freeman
  • News & Views |

    Mangrove canopy heights vary around the world in response to rain, storms and human activities, suggests a global analysis of mangrove canopy height. How tall the trees are matters for estimating global mangrove carbon storage.

    • Daniel A. Friess
  • Editorial |

    Machine learning allows geoscientists to embrace data at scales greater than ever before. We are excited to see what this innovative tool can teach us.

  • News & Views |

    Seismic data during the time interval between larger earthquakes could contain information about fault displacements and potential for future failure, suggest analyses of data from laboratory and real-world slow-slip earthquakes using machine-learning techniques.

    • Kenneth C. Creager
  • Article |

    Both fast and slow earthquakes are preceded by micro-failure events that radiate energy. According to machine learning, these events can foretell catastrophic failure in laboratory experiment earthquakes.

    • Claudia Hulbert
    • , Bertrand Rouet-Leduc
    • , Paul A. Johnson
    • , Christopher X. Ren
    • , Jacques Rivière
    • , David C. Bolton
    •  & Chris Marone
  • Review Article |

    Stressors such as large-scale damming, hydrological change, pollution, the introduction of non-native species and sediment mining are challenging the integrity and future of large rivers, according to a synthesis of the literature on the 32 biggest rivers.

    • Jim Best
  • Correspondence |

    • Fabian B. Wadsworth
    • , Edward W. Llewellin
    • , Colin Rennie
    •  & Cate Watkinson
  • Article |

    Glacial meltwater from the Greenland Ice Sheet causes buoyancy-driven upwelling of nutrient-rich, subtropical waters from depth to the continental shelf. This nutrient transport may exceed the direct ice sheet inputs, according to geochemical analyses of transect samples from Sermilik Fjord.

    • Mattias R. Cape
    • , Fiammetta Straneo
    • , Nicholas Beaird
    • , Randelle M. Bundy
    •  & Matthew A. Charette
  • Article |

    Changes in glacier speed in High Mountain Asia are closely linked to mass balance through gravitational driving stress, and largely insensitive to basal conditions, according to satellite-derived ice-flow observations.

    • Amaury Dehecq
    • , Noel Gourmelen
    • , Alex S. Gardner
    • , Fanny Brun
    • , Daniel Goldberg
    • , Peter W. Nienow
    • , Etienne Berthier
    • , Christian Vincent
    • , Patrick Wagnon
    •  & Emmanuel Trouvé
  • Article |

    Prescribed burning has far less impacts on peat growth and carbon sequestration than previously thought, according to a long-term experiment in fire-managed peat moorlands in England. Managed burning may be a viable strategy to make peatlands more resilient to devastating wildfire.

    • R. H. Marrs
    • , E.-L. Marsland
    • , R. Lingard
    • , P. G. Appleby
    • , G. T. Piliposyan
    • , R. J. Rose
    • , J. O’Reilly
    • , G. Milligan
    • , K. A. Allen
    • , J. G. Alday
    • , V. Santana
    • , H. Lee
    • , K. Halsall
    •  & R. C. Chiverrell
  • Article |

    Hydrologically landlocked basins worldwide have experienced widespread decline in water storage over the past decade.

    • Jida Wang
    • , Chunqiao Song
    • , John T. Reager
    • , Fangfang Yao
    • , James S. Famiglietti
    • , Yongwei Sheng
    • , Glen M. MacDonald
    • , Fanny Brun
    • , Hannes Müller Schmied
    • , Richard A. Marston
    •  & Yoshihide Wada
  • Editorial |

    Past and future changes in tropical cyclones and the damage they cause are fiendishly difficult to detect and project. For the Atlantic, progress is being made; other ocean basins lag behind.

  • Perspective |

    Changes in calcification of marine organisms must be considered to explain the deepening of carbonate accumulation during ocean recovery from acidification events. According to a literature synthesis and modelling, dissolution of sedimentary carbonate is not sufficient to explain observations.

    • Bernard P. Boudreau
    • , Jack J. Middelburg
    •  & Yiming Luo
  • News & Views |

    Most of the net water transferred over the past 15 years from non-glaciated land to the oceans has originated from landlocked basins, according to satellite data. This source of sea-level rise is often overlooked.

    • Tamlin M. Pavelsky
  • News & Views |

    Extreme temperature swings and deteriorating environments are perhaps what killed most life in the end-Permian extinction, suggest climate model simulations. Siberian Traps volcanism probably triggered the events.

    • Ying Cui
  • Article |

    Carbon and sulfur release from the Siberian Traps igneous province caused climate swings during the end-Permian mass extinction, according to coupled global climate simulations.

    • Benjamin A. Black
    • , Ryan R. Neely
    • , Jean-François Lamarque
    • , Linda T. Elkins-Tanton
    • , Jeffrey T. Kiehl
    • , Christine A. Shields
    • , Michael J. Mills
    •  & Charles Bardeen
  • News & Views |

    During flat subduction, material is scraped off the base of the continental mantle lithosphere, building a migrating keel. This testable mechanism for flat subduction recreates features of the Laramide orogeny.

    • Marc-André Gutscher