Results 171 to 180 of about 20,174 (266)

Revealing Permafrost Continuity Across a Northern Watershed With Airborne Electromagnetics

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 5, May 2026.
Abstract Permafrost thawing in northern regions may alter groundwater‐surface water dynamics, thereby impacting hydrologic and ecologic functions and the potential release of stored solutes including carbon. Here, we present an airborne frequency‐domain electromagnetic survey over a discontinuous permafrost region within the Central Mackenzie Valley in
O. Conway‐White   +3 more
wiley   +1 more source

Putative Analogs of Pyrite Suns Forming in Proglacial Alaska Mudflats

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Disc‐shaped pyrite suns of the Pennsylvanian age Anna Shale are thought to have formed where pressure restricted pyrite crystal growth to a flattened disc shape during diagenesis at the Anna Shale and the underlying Herrin coal boundary.
Heather L. Fair   +2 more
wiley   +1 more source

Rate Dependency of Capillary Heterogeneity Trapping for CO2 Storage

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract In this paper, we experimentally quantify and analytically model rate dependent capillary heterogeneity trapping. Capillary heterogeneity trapping enhances non‐wetting fluid trapping beyond pore‐scale residual trapping through the isolation of non‐wetting phase upstream of heterogeneities in the continuum capillary pressure characteristics ...
Catrin Harris   +3 more
wiley   +1 more source

Gas Permeability of Frozen Sediments: Implications for Modeling Gas and Water Transport in Permafrost

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract We measure the gas permeability of two permafrost sediments at a range of ice saturations and use van Genuchten‐Mualem equations to model the relative gas (krg) and water (krw) permeabilities of frozen sediments. We show that our frozen sediment krg data and model display the same functional form as frozen and unfrozen sediment krg data from ...
N. Tanner Mills   +5 more
wiley   +1 more source

High Temperature Friction and Strength of Felsite and Basalt: Implications for Supercritical EGS at Krafla, Iceland

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract One promising potential site for extracting supercritical geothermal fluids is the Krafla volcano, Iceland, into which a borehole was drilled very close to a shallow rhyolite magma chamber at about 2 km depth. Besides the technical challenge to drill in this setting, the extreme temperature conditions of T > 900°C close to the magma body may ...
E. Rybacki   +3 more
wiley   +1 more source

Magnetotelluric Exploration of Zn Pb Mineralization in Stonepark, Irish Midlands

open access: yesGeophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT To meet the increasing demand for raw materials and to foster the energy transition, advances in exploration techniques are required that extend capabilities to deeper and/or more densely populated areas while having a low environmental and societal impact.
K. Tietze   +9 more
wiley   +1 more source

4D Seismic Inversion to Changes in Pressure and Saturation Using Deep Learning

open access: yesGeophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT This study presents a deep learning (DL)‐based 4D inversion approach for estimating dynamic reservoir properties—pressure change, water saturation change and gas saturation change—from 4D seismic data. The workflow reduces reliance on reservoir simulation‐driven static modelling stage in the sim2seis pipelines by using DL‐derived 3D ...
Chean Lin Lew   +2 more
wiley   +1 more source

Shifting the Paradigm: Redefining the Chronostratigraphy of the Triassic Rewan Group, Bowen Basin, Australia

open access: yesBasin Research, Volume 38, Issue 3, May–June 2026.
New U–Pb zircon dating shows the Rewan Group was deposited between ~250 and 233 million years ago and that sedimentation shifted across the basin through time, with earlier deposition in the foredeep and later deposition in the back bulge. Testing multiple dating approaches and grain‐selection strategies improves confidence in these age estimates and ...
Matthew Scipione   +6 more
wiley   +1 more source

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