Feed aggregator

Was the mantle warmer when Pangea broke up? insights from initial oceanic crustal thickness alongside the rifted margins of the Atlantic and Indian Oceans

Earth and Planetary Science Letters - Mon, 03/09/2026 - 19:10

Publication date: 15 April 2026

Source: Earth and Planetary Science Letters, Volume 680

Author(s): Daniel Sauter, Gianreto Manatschal, Nick Kusznir, Nicolas Coltice, Pauline Chenin, Marc Ulrich, Marie Garbaciak, Philippe Werner

Cratonic impact on clastic-dominated base metal deposits in continental rifts

Earth and Planetary Science Letters - Mon, 03/09/2026 - 19:10

Publication date: 15 April 2026

Source: Earth and Planetary Science Letters, Volume 680

Author(s): Anne C. Glerum, S. Brune, J. M. Magnall, P. Weis, S. A. Gleeson

A laboratory model for Jovian polar vortex crystals

Earth and Planetary Science Letters - Mon, 03/09/2026 - 19:10

Publication date: 15 April 2026

Source: Earth and Planetary Science Letters, Volume 680

Author(s): Djihane Benzeggouta, Benjamin Favier, Michael Le Bars

Corrigendum to “Isotope effects (Cl, O, C) of heterogeneous electrochemistry induced by Martian dust activities” [Earth and Planetary Science Letters 676 (2026) 119784]

Earth and Planetary Science Letters - Mon, 03/09/2026 - 19:10

Publication date: 15 April 2026

Source: Earth and Planetary Science Letters, Volume 680

Author(s): Neil C. Sturchio, Hao Yan, Alian Wang, W. Andrew Jackson, Huiming Bao, Chuck Y.C. Yan, Linnea J. Heraty, Yu Wei, Quincy H.K. Qu, Kevin S. Olsen

Comparison of slow magnetoacoustic waves in coronal loops above sunspots and faculae

Publication date: Available online 4 March 2026

Source: Advances in Space Research

Author(s): Andrei Chelpanov, Nikolai Kobanov

Comparative Evaluation of ASTER, Landsat 8, and Sentinel-2A Data for Lithological Mapping in the Emet–Hisarcık Borate Basin (Türkiye) Using Machine Learning

Publication date: Available online 4 March 2026

Source: Advances in Space Research

Author(s): Recep Uğur ACAR

Urban Resilience to Urbanisation, Climate Change and Natural Risk in Urban Historic Areas of Developing Countries: A Systematic Review

Publication date: Available online 4 March 2026

Source: Advances in Space Research

Author(s): Mohammad Maleki, Abdulsalam Esmailzadeh, Mahmoud Edalati Ranjbar, Parisa Derakhshesh, Javad Hosseini, Mahdis Rahmati, Junye Wang, Shayan Khanmohammadidoustani, Rabee Rustum

Dynamic mesh-based investigation of thermal environment during mars ascent vehicle launch phase

Publication date: Available online 4 March 2026

Source: Advances in Space Research

Author(s): Zhongyi Sun, Zhanxun Che, Gengchen Zhao, Zeming Wang, Guigao Le

ASSESSMENT OF URBAN SPATIAL PATTERNS AND LAND USE EFFICIENCY IN TIRUCHIRAPPALLI CITY, TAMIL NADU, INDIA

Publication date: Available online 4 March 2026

Source: Advances in Space Research

Author(s): TAlagu Venkatesh, Nisha Radhakrishnan

High-Resolution Vegetation Mapping in Inner Mongolia Based on Sentinel-2 Imagery and Random Forest

Publication date: Available online 3 March 2026

Source: Advances in Space Research

Author(s): Yuhui Ma, Jianmin Wang, Lei Zhang, Hongrui Ren

Predefined-Time Active Fault-Tolerant Control For Flexible Spacecraft Without Angular Velocity Measurement

Publication date: Available online 3 March 2026

Source: Advances in Space Research

Author(s): Xufeng Wu, Liu Zhang, Guowei Fan, Quanzhi Liu, Yang Xiao, Jianpeng Han

Decoding Urban Sprawl in Bhubaneswar (2000-2025): A Spatio-Temporal LULC and Landscape Fragmentation Analysis

Publication date: Available online 3 March 2026

Source: Advances in Space Research

Author(s): Roshan Beuria, Sarat Chandra Sahu, Debabrata Nandi

Prediction of land surface temperature dynamics over Lucknow via Google Earth Engine and machine learning approach

Publication date: Available online 3 March 2026

Source: Advances in Space Research

Author(s): Kundan Bhushan, Manoj Kumar Yadava, Praveen Kumar Yadav

Microbes hitchhiking on marine snow could limit how deep carbon sinks

Phys.org: Earth science - Mon, 03/09/2026 - 19:00
In some parts of the deep ocean, it can look like it's snowing. This "marine snow" is the dust and detritus that organisms slough off as they die and decompose. Marine snow can fall several kilometers to the deepest parts of the ocean, where the particles are buried in the seafloor for millennia.

Ocean carbon removal looks promising, but nutrient cycling could curb long-term gains

Phys.org: Earth science - Mon, 03/09/2026 - 18:40
There is growing interest in the scientific community and private sector in biological approaches to marine carbon dioxide removal—strategies designed to enhance the ocean's natural ability to absorb carbon from the atmosphere. However, a study led by Megan Sullivan, a postdoctoral researcher in the University of Rhode Island's Graduate School of Oceanography (GSO), suggests that some proposals may overlook an important factor.

How a shift in the Gulf Stream could signal the collapse of a major ocean current system

Phys.org: Earth science - Mon, 03/09/2026 - 17:50
Changes in the Gulf Stream, a strong ocean current in the Atlantic, could serve as an early warning of the imminent collapse of the Atlantic Meridional Overturning Circulation (AMOC). The AMOC is a massive system of ocean currents that acts as a conveyor belt, moving heat from the tropics to the North Atlantic. The part of this system that flows along the east coast of the United States and then east toward Europe is the Gulf Stream. Scientists are concerned that if the AMOC were to collapse, it could trigger drastic climate shifts, especially in Europe, where temperatures could plummet.

Ancient hydrothermal carbon fuels microbes and crabs off Taiwan, study reveals

Phys.org: Earth science - Mon, 03/09/2026 - 16:40
How is carbon metabolized and processed in different ecosystems? In a study published in the journal Communications Earth & Environment, researchers led by Joely Maak, the study's first author and researcher in the Cluster of Excellence "The Ocean Floor—Earth's Uncharted Interface," examined the carbon cycle in a unique marine ecosystem.

Most Saharan dust is generated by 'hidden thunderstorms' high above the desert

Phys.org: Earth science - Mon, 03/09/2026 - 15:10
When Saharan dust reaches the UK and Europe, as a huge country-sized cloud did over the past few days, it can transform the sky. Tiny particles drifting in the atmosphere scatter blue light while allowing reds and oranges to reach us intact, producing beautiful sunsets.

Uncertainty Analysis of Bathymetry Inversion in the South China Sea: A Comparison of Deep Learning and Bayesian Approaches

Geophysical Journal International - Mon, 03/09/2026 - 00:00
SummaryTraditional bathymetry inversion methods often fail to capture the complex nonlinear relationship between gravity data and bathymetry and lack the capability to quantify prediction uncertainty. To address these limitations, we investigated deep learning and Bayesian methods that enhance prediction accuracy and provide estimates of prediction uncertainty. Three methods—the Fully Connected Neural Network (FCNN), normalizing Flow model (Flow) and FCNN-Markov Chain Monte Carlo (FCNN-MCMC)—were developed to construct high-resolution (1′×1′) bathymetry models (FCNN, Flow, and FCNN-MCMC models) of the South China Sea (113°E-119°E, 12°N-19°N). The input data included positional, topographic, and gravity information from 4′×4′ grid points surrounding each training, validation and prediction point, while the output data corresponded to the measured bathymetry at training and validation points. At the check points, the standard deviation (STD) of the FCNN, Flow, and FCNN-MCMC models decreased by 7.13 m, 14.24 m, and 15.51 m, respectively, compared with topo_27.1, and by 18.19 m, 25.30 m, and 26.57 m, respectively, compared with ETOPO2022. The distribution of prediction uncertainties (STD) showed that over 90 per cent of the area exhibited an STD below 130 m. The prediction uncertainties exhibited a spatial distribution similar to the predicted results, with higher uncertainties mainly concentrated in shallow waters and steep areas.

Energy-based traffic light system (ETLS) to balance injection-induced seismicity and permeability enhancement: a laboratory scale modeling study

Geophysical Journal International - Mon, 03/09/2026 - 00:00
SummaryHydraulic shear stimulation is a method to enhance permeability and heat extraction efficiency of geothermal systems. However, such reservoir treatments can have the risk of injection-induced seismicity. To address this issue, a novel Traffic Light System (TLS) is proposed based on the change of the seismic injection efficiency rate which is the ratio between seismic energy and hydraulic energy. In a first step, we numerically investigate the behavior of a naturally rough, slowly slipping, velocity-strengthening fracture in a granite at laboratory scale. The model is formulated on an evolution law for fractures within a rate-and-state friction framework, with fracture aperture varying as a function of both slip displacement and slip velocity. We compare the effects of the proposed Energy-based Traffic Light System (ETLS) injection protocol against those of modeled monotonic and cyclic injection, focusing particularly on aperture evolution and slip velocity. We show how implementing the ETLS criteria can reduce slip velocity by 30% compared to monotonic injection, while it was increased by 51% for cyclic injection. Even with lower slip velocity, the ETLS injection scheme sustains a similar aperture per injected volume as the monotonic scheme once larger volumes are reached. Overall, our simulations suggest that an ETLS approach could provide a safer hydraulic shear stimulation strategy for enhanced geothermal systems by minimizing slip velocity while maximizing permeability, compared to monotonic or cyclic injection.

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer