Featured
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| Open AccessQuantum critical phase of FeO spans conditions of Earth’s lower mantle
Large-scale eDMFT computation reveals that FeO undergoes a gradual orbitally selective insulator-metal transition across the extreme conditions of Earth’s interior, with implications for compositions and conductivity of the core-mantle boundary region.
- Wai-Ga D. Ho
- , Peng Zhang
- & Vasilije V. Dobrosavljevic
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Article
| Open AccessOcean cavity regime shift reversed West Antarctic grounding line retreat in the late Holocene
Using ice sheet model and glacio-isostatic adjustment model simulations and paleoclimate proxies, this work demonstrates that the most likely cause of past West Antarctic grounding-line reversal was a regime shift from a warm to cold ocean cavity.
- Daniel P. Lowry
- , Holly K. Han
- & Robert M. McKay
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Article
| Open AccessOrbital- and millennial-scale Asian winter monsoon variability across the Pliocene–Pleistocene glacial intensification
Persistent millennial Asian winter monsoon variability is shown to be superposed on orbital 41-kyr and 100-kyr cycles across the Pliocene–Pleistocene glacial intensification using a paleomagnetically dated high-resolution Chinese Loess Plateau grain size record.
- Hong Ao
- , Diederik Liebrand
- & Peng Zhang
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Article
| Open AccessIron alloys of volatile elements in the deep Earth’s interior
Many volatile elements are depleted in the bulk silicate Earth. Here, the authors found that these volatile elements tend to react with Fe under pressure and may be sequestered within Earth’s core by forming substitutional Fe alloys.
- Yifan Tian
- , Peiyu Zhang
- & Hanyu Liu
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Article
| Open AccessGlacial isostatic adjustment reduces past and future Arctic subsea permafrost
A pan-Arctic estimate of past and future subsea permafrost including solid Earth effects causes local sea level to differ from the global mean. Future subsea permafrost disappears faster under high than low emissions scenarios.
- Roger C. Creel
- , Frederieke Miesner
- & Pier Paul Overduin
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Article
| Open AccessEuropium in plagioclase-hosted melt inclusions reveals mantle melting modulates oxygen fugacity
Distributions of the multivalent element Europium are used to recover the partial pressure of oxygen from basaltic mantle melt inclusions trapped in plagioclase crystals, suggesting Earth’s mantle is reduced by partial melting.
- Nicholas Dygert
- , Gokce K. Ustunisik
- & Roger L. Nielsen
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Article
| Open AccessLandslide hazard cascades can trigger earthquakes
While earthquakes are known to trigger landslides and initiate hazard cascades, the authors show that landslide hazard cascades can instead trigger earthquakes by increasing stresses on faults through direct loading and pore pressure diffusion.
- Zhen Zhang
- , Min Liu
- & Jinrong Su
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Article
| Open AccessLate Paleozoic oxygenation of marine environments supported by dolomite U-Pb dating
A proxy is developed for oxygen levels in seawater, based on U-Pb dating of dolomite. It shows a step-increase in O2 400 million years ago, suggesting that oceans were largely oxygen-limited at the ‘dawn’ of animal life.
- Michal Ben-Israel
- , Robert M. Holder
- & Uri Ryb
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Article
| Open AccessSubslab ultra low velocity anomaly uncovered by and facilitating the largest deep earthquake
A small ultralow velocity anomaly has been identified between the Pacific subduction and upper-lower mantle boundary. This anomaly implies significant buoyancy, which may bring the slab easier to develop into a M8+ deep earthquake.
- Weiwen Chen
- , Shengji Wei
- & Weitao Wang
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Article
| Open AccessLandslide topology uncovers failure movements
This study analyzes the 3d shapes of landslides and introduces a method to discern landslide movements, such as slides, flows and falls.
- Kushanav Bhuyan
- , Kamal Rana
- & Nishant Malik
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Matters Arising
| Open AccessReply to: Coastal shoreline change assessments at global scales
- Rafael Almar
- , Julien Boucharel
- & Erwin W. J. Bergsma
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Article
| Open AccessCompleting the loop of the Late Jurassic–Early Cretaceous true polar wander event
The authors report three palaeomagnetic poles from the North China craton and document a large round-trip true polar wander oscillation during 155−141 Ma that may have affected biotic evolution in East Asia and global extinction and endemism.
- Yifei Hou
- , Pan Zhao
- & Rixiang Zhu
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Article
| Open AccessCirculation of hydraulically ponded turbidity currents and the filling of continental slope minibasins
Gravity currents transporting particulates down continental slopes can encounter large depressions. Current interactions with confining topography induce horizontal circulation cells that control deposition of sediment in depressions and reduce their capacity to trap particulates.
- J. Kevin Reece
- , Robert M. Dorrell
- & Kyle M. Straub
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Article
| Open AccessHigh-latitude platform carbonate deposition constitutes a climate conundrum at the terminal Mesoproterozoic
Deposition of 1.2-billion-year-old Indian limestone in shallow seas near the poles imply balmy conditions of more than 15 °C and significantly higher atmospheric greenhouse gas concentrations, which expands the spectrum of Earth’s climatic extremes.
- Michiel O. de Kock
- , Ingrit Malatji
- & L. P. Maré
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Article
| Open AccessCrustal permeability generated through microearthquakes is constrained by seismic moment
Crustal permeability evolution predicted from observed MEQs using Bi-LSTM models. MEQ-to-permeability relations confirmed across multiple field data sets using transfer learning with scaling relationships confirmed using physics-based models.
- Pengliang Yu
- , Ankur Mali
- & Derek Elsworth
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Article
| Open AccessFull-waveform tomography reveals iron spin crossover in Earth’s lower mantle
This study reveals that in the Earth’s mid-mantle, ferropericlase (the second most abundant mineral) undergoes a major electronic reconfiguration. At the base of the mantle, an enrichment in silica may represent a crystallised ancient magma ocean.
- Laura Cobden
- , Jingyi Zhuang
- & Jeroen Tromp
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Article
| Open AccessEarthquake forecasting from paleoseismic records
There is no universal model for large earthquake recurrence, and an ensemble forecasting approach is desirable when dealing with paleoseismic records with few data points and large measurement errors.
- Ting Wang
- , Jonathan D. Griffin
- & Jie Kang
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Article
| Open AccessModelling atomic and nanoscale structure in the silicon–oxygen system through active machine learning
Understanding the silicon-oxygen system is crucial for various applications. Here, the authors present an interatomic potential covering a wide range of the Si-O configurational space and showcase applications to silica and Si-SiO2 interfaces.
- Linus C. Erhard
- , Jochen Rohrer
- & Volker L. Deringer
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Article
| Open AccessMagmatism controls global oceanic transform fault topography
Spreading-rate dependent magmatism plays a central role in controlling the global systematics of oceanic transform fault topography, according to geodynamic modelling.
- Xiaochuan Tian
- , Mark D. Behn
- & Anton A. Popov
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Article
| Open AccessVolcano generated tsunami recorded in the near source
Tsunami generated by pyroclastic flows are recorded in near-source condition. Waveform remains stable for different velocity and geometry of the sliding body. Volume is calculated from tsunami height. Tsunami occurring near populated coast can be detected automatically in real-time.
- M. Ripepe
- & G. Lacanna
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Article
| Open AccessDeglaciation-enhanced mantle CO2 fluxes at Yellowstone imply positive climate feedback
The retreat of the #Yellowstone ice cap reduced mantle pressures. Using models, we predict this enhanced mantle melting 19-fold, segregating a globally-significant mass of CO2 and potentially contributing to feedbacks between deglaciation and climate.
- Fiona Clerc
- , Mark D. Behn
- & Brent M. Minchew
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Article
| Open AccessOnset of double subduction controls plate motion reorganisation
In face-to-face double subduction, the development of subduction in the younger system restrains subduction in the older system and results in plate motion reorganisation, according to geodynamic modelling.
- Kuidi Zhang
- , Jie Liao
- & Taras Gerya
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Article
| Open AccessHuman-triggered magnification of erosion rates in European Alps since the Bronze Age
Using a lake sediment core taken from the European Alps and combining a source-sink approach with isotope geochemistry, it has been established that the effects of human activities have outweighed those of climate on erosion for more than 3800 years.
- William Rapuc
- , Charline Giguet-Covex
- & Fabien Arnaud
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Article
| Open AccessShear margins in upper half of Northeast Greenland Ice Stream were established two millennia ago
The flow of ice streams leaves traces in the stratigraphy of the ice sheets. Made visible by radar, they reveal the history of the upper North East Greenland Ice Stream. The ice stream is found to have existed in its current form for only about the last 2000 years.
- Daniela Jansen
- , Steven Franke
- & Paul D. Bons
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Article
| Open AccessLoess deposits in the low latitudes of East Asia reveal the ~20-kyr precipitation cycle
Earth’s orbit has tuned the variations of the East Asian summer monsoon. Here, a low latitude loess palaeoclimate record provides evidence that variation in monsoon rainfall is dominated by the precession cycle.
- Xusheng Li
- , Yuwen Zhou
- & Huayu Lu
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Article
| Open AccessStructure and elasticity of CaC2O5 suggests carbonate contribution to the seismic anomalies of Earth’s mantle
Based on first-principle simulations of the properties of CaC2O5 under high pressure, the authors suggest that carbonates may contribute to the origins of the seismic velocity anomalies in Earth’s mantle and transport within the deep carbon cycle.
- Hanyu Wang
- , Lei Liu
- & Shide Mao
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Article
| Open AccessArchaean continental crust formed from mafic cumulates
Earth’s early continental crust formed by the melting of plagioclase-cumulates. Melting of these rocks, and subsequent crustal delamination and remelting, can explain the growth and differentiation of the continental crust during the Archaean.
- Matthijs A. Smit
- , Kira A. Musiyachenko
- & Jeroen Goumans
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Article
| Open AccessSalinity causes widespread restriction of methane emissions from small inland waters
Small inland water bodies are widely seen as important sources of methane to the atmosphere. This study demonstrates that hardwater ecosystems emit less of this potent greenhouse gas than predicted due to complex biogeochemical controls
- Cynthia Soued
- , Matthew J. Bogard
- & Paige Kowal
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Article
| Open AccessOxide nanolitisation-induced melt iron extraction causes viscosity jumps and enhanced explosivity in silicic magma
Oxide nanolites crystallisation in natural magma increases melt, and hence bulk magma viscosity mainly due to iron extraction. This increase can be sufficient to drive magma fragmentation depending on magma degassing and ascent dynamics.
- Francisco Cáceres
- , Kai-Uwe Hess
- & Donald B. Dingwell
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Article
| Open AccessNanoscale silicate melt textures determine volcanic ash surface chemistry
Nanotexture-sensitive fracture focusing during magma fragmentation determines the surface chemistry of volcanic ash particles, thereby modifying the reactive interface and subsequent environmental impacts
- Adrian J. Hornby
- , Paul M. Ayris
- & Donald B. Dingwell
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Article
| Open AccessMethane-hydrogen-rich fluid migration may trigger seismic failure in subduction zones at forearc depths
This study provides evidence for the migration of deep energy sources along tectonic discontinuities in subduction zones and suggests causal relationships with brittle failure of hard rocks that may trigger seismic activity.
- Francesco Giuntoli
- , Luca Menegon
- & Alberto Vitale Brovarone
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Article
| Open AccessProduction-induced seismicity indicates a low risk of strong earthquakes in the Groningen gas field
Authors develop an approach to distinguish between induced and triggered tectonic earthquakes. Seismicity at the Groningen gas field is solely induced. The probabilities to trigger tectonic earthquakes indicate the inherent stability of the field.
- Nepomuk Boitz
- , Cornelius Langenbruch
- & Serge A. Shapiro
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| Open AccessChange of deep subduction seismicity after a large megathrust earthquake
In this study, the authors analyze the spatio-temporal variations of the seismicity in Japan due to the Tohoku-Oki earthquake. They show that a megathrust earthquake can affect the stress state of the slab over large lateral and depth ranges.
- Blandine Gardonio
- , David Marsan
- & Alexandre Schubnel
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Article
| Open AccessShoreface erosion counters blue carbon accumulation in transgressive barrier-island systems
Landward barrier migration facilitates erosion of shoreface-exposed marsh and lagoon carbon stocks at rates outpacing backbarrier carbon accumulation, thus demonstrating the ephemeral nature of blue carbon storage along transgressive coasts.
- Mary Bryan Barksdale
- , Christopher J. Hein
- & Matthew L. Kirwan
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Article
| Open AccessMagmatic immiscibility and the origin of magnetite-(apatite) iron deposits
Magnetite-apatite (MtAp) deposits are an important source of iron and critical metals, yet their ore genesis is poorly understood. Here, authors propose that the separation of multiple melts during magma ascent leads to the formation of MtAp deposits.
- Dorota K. Pietruszka
- , John M. Hanchar
- & Wyatt M. Bain
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Article
| Open AccessHow frictional slip evolves
Conventionally, a continuous motion or “dynamic friction” is expected to take place after the initial rupture under friction. Here, the authors perform direct measurement of real contact and slip at the frictional interface and show that the secondary rupture takes place after each initial rupture.
- Songlin Shi
- , Meng Wang
- & Jay Fineberg
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Article
| Open AccessGlobal distribution and dynamics of muddy coasts
14% of the world’s coastlines are muddy and the majority of them are eroding at rates exceeding 1 m per year over the last three decades, according to an automated classification method that identifies global coastlines.
- Romy Hulskamp
- , Arjen Luijendijk
- & Stefan Aarninkhof
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Article
| Open AccessSeismic arrival-time picking on distributed acoustic sensing data using semi-supervised learning
In this study, the authors develop a semi-supervised approach to train a deep learning model, PhaseNet-DAS, for identifying seismic phases in Distributed Acoustic Sensing (DAS) data, which enables detecting and locating earthquakes using fiber-optic networks.
- Weiqiang Zhu
- , Ettore Biondi
- & Zhongwen Zhan
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Article
| Open AccessThe emergence of modern zoogeographic regions in Asia examined through climate–dental trait association patterns
The timing of the emergence of the modern Asian terrestrial biota is unclear. Here, the authors apply redescription mining to herbivore dental trait data, finding that different aspects of modern zoogeographic patterns originated in the Pliocene and Middle and Late Miocene.
- Liping Liu
- , Esther Galbrun
- & Indrė Žliobaitė
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Article
| Open AccessWidespread PREMA in the upper mantle indicated by low-degree basaltic melts
PREMA, the highly fusible Prevalent Mantle now found throughout the mantle, may have been generated soon after Earth’s accretion with minimal subsequent modification, according to a combination of composition data from Cenozoic sodic basalts and mantle convection simulations
- Ronghua Cai
- , Jingao Liu
- & Senan Oesch
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Article
| Open AccessInner core static tilt inferred from intradecadal oscillation in the Earth’s rotation
A static tilt of some 0.17° between the rotation axes of the solid inner core and the mantle is inferred from the observed approximate 8.5 year periodic inner core wobble in both polar motion and length-of-day variations of the Earth’s rotation.
- Yachong An
- , Hao Ding
- & Weiping Jiang
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Article
| Open AccessReconciling patterns of long-term topographic growth with coseismic uplift by synchronous duplex thrusting
Deciphering the relationship between prolonged topographic growth and temporary earthquake uplift is challenging due to the mismatch in their deformation patterns. Zhang et al. introduce a novel model to address this highly hotly-debated discrepancy.
- Yuqing Zhang
- , Hanlin Chen
- & Xiu Hu
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Article
| Open AccessChanges in orogenic style and surface environment recorded in Paleoproterozoic foreland successions
Two different styles of orogenesis during the Neoarchean and Paleoproterozoic are recorded in the depositional-to-deformational evolution of the orogenic foreland of the North China Craton, and would have differently changed the surface environment.
- Bo Huang
- , Man Liu
- & Qunye Qian
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Article
| Open AccessVertical tearing of subducting plates controlled by geometry and rheology of oceanic plates
Vertical tearing promotes continuous segmentation of subducting plates, but its dynamics and physical controls remain debated. This work indicates that trench geometry and plate rheology control the self-sustained process of vertical tearing.
- Yaguang Chen
- , Hanlin Chen
- & Taras Gerya
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Article
| Open AccessVolcaniclastic density currents explain widespread and diverse seafloor impacts of the 2022 Hunga Volcano eruption
During the 2022 Hunga Volcano eruption, 10 km3 of seafloor material was removed, fueling long-run out seafloor density currents. These powerful currents damaged seafloor cables over a length of >100 km, reshaped the seafloor, and caused mass-mortality of seafloor life.
- Sarah Seabrook
- , Kevin Mackay
- & Michael J. M. Williams
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Article
| Open AccessMonths-long seismicity transients preceding the 2023 MW 7.8 Kahramanmaraş earthquake, Türkiye
Unique seismic transients since 2014 were detected during 8 months before the 2023 MW 7.8 Kahramanmaraş earthquake on the East Anatolian Fault. They are consistent with experiments and models of heterogeneous rupture affecting multiple fault segments.
- G. Kwiatek
- , P. Martínez-Garzón
- & M. Bohnhoff
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Article
| Open AccessBony-fish-like scales in a Silurian maxillate placoderm
The origin and early evolution of large scales in bony fishes and small scales in cartilaginous fishes are unclear. Here, the authors report a 425-million-year-old fish, Entelognathus, with a mosaic of scale and fin spine characters.
- Xindong Cui
- , Matt Friedman
- & Min Zhu
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Article
| Open AccessMelting and defect transitions in FeO up to pressures of Earth’s core-mantle boundary
Multi-technique synchrotron measurements support the viability of solid FeO-rich structures at Earth’s mantle base. An order-disorder transition identified in the iron defect structure of FeO may lead to unique physical properties in the region.
- Vasilije V. Dobrosavljevic
- , Dongzhou Zhang
- & Jennifer M. Jackson
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Article
| Open AccessPaleogene India-Eurasia collision constrained by observed plate rotation
Dynamic 3D modelling of counterclockwise rotation of the Indian plate, which peaked at 52-44 and 33-20 Ma, reveals the diachronous India-Eurasia collision from western-centre to east since 55 ± 5 Ma and complete collision since 40 ± 5 Ma.
- Xiaoyue Wu
- , Jiashun Hu
- & Lijun Liu