Results 31 to 40 of about 109 (105)

Porous and Permeable Crystalline Basement: Evidence for Large‐Scale Hydraulic Connectivity at Kivetty, Finland

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Porosity and permeability in crystalline shield basement are commonly assumed to be low, yet some fault zones sustain fluid circulation over kilometer scales. Here we quantify multiscale fault‐zone connectivity at Kivetty, central Finland, by integrating legacy deep‐borehole data, including packer tests, downhole logs, and a long‐term multi ...
Daniel Carbajal‐Martínez, Michael J. Heap, Ester M. Jolis, Toni Luoto, Thierry Reuschlé, Satu Vuoriainen, Jukka Kuva, Evgenii Kortunov, Alan Bischoff   +8 more
wiley   +1 more source

VolcanoVR: A virtual reality environment for volcanic data visualisation and communication

Volcanica
With the increasing size and complexity of geological datasets relating to volcano monitoring and research, effective visualisation can be challenging.
Kristian Hansen, Simon Barker, Finnigan Illsley-Kemp, Craig Anslow, Christof Mueller, Graham Leonard   +5 more
doaj   +1 more source

A Physics‐Based, Lumped‐Parameter Model for Attributing Natural and Anthropogenic CO2 Emissions From Producing Geothermal Systems

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Although geothermal energy is a low‐carbon resource, some powerplants can coproduce and release CO2 ${\text{CO}}_{2}$, which is then subject to emissions monitoring and sometimes financial penalty. Accurate attribution of these emissions is difficult because exploitation of the reservoir alters hydrological flows that in turn modify surface ...
David Dempsey
wiley   +1 more source

Seismic Constraints on Igneous Intrusions and Fluid/Gas Distribution in a Continental Back‐Arc System: Evidence From the Yaeyama Rift in the Southern Okinawa Trough

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract The geometry and distribution of igneous intrusions, which define melt source locations and record syn‐emplacement stress conditions, are essential for understanding tectonic and magmatic processes associated with crustal extension. However, in back‐arc settings along continental margins, structural constraints on these features remain poorly ...
Ryuta Arai, Ayanori Misawa, Makoto Otsubo, Masataka Kinoshita, Saki Ishino, Akane Yamamoto   +5 more
wiley   +1 more source

A review of the supercritical state of eruption‐fed volcanic density currents in subaerial and subaqueous settings

Sedimentology, Volume 73, Issue 5, Page 1331-1351, August 2026.
ABSTRACT Subaerial Pyroclastic Density Currents (PDCs) and Subaqueous Eruption‐Fed Density Currents (SEFDCs) produced during volcanic eruptions can present major hazards to surrounding communities and ecosystems. The bedforms deposited by these volcanic density currents can provide insights into the nature of transport and depositional processes, which
Shannon E. Frey, Martin Jutzeler, Rebecca J. Carey   +2 more
wiley   +1 more source

Insights Into Magmatic Degassing, Hydrothermal Dynamics, and Eruption Precursors From Long Term SO2 Emission Monitoring at Whakaari/White Island, New Zealand

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Long‐term SO2 emission rate time series are critical for deciphering the subsurface processes regulating open‐vent volcanoes, yet extracting cyclical drivers from continuous degassing records remains challenging. We analyze a 14‐year (2006–2020) SO2 emission rate data set from Whakaari/White Island, New Zealand, identifying five chronological ...
A. Mazot, C. Miller, K. Britten, B. Scott, G. Kilgour, Cynthia Werner   +5 more
wiley   +1 more source

Slab‐Plume Interactions Beneath Australia and New Zealand: New Insight From Whole‐Mantle Tomography

Geochemistry, Geophysics, Geosystems
Australia, New Zealand, and the surrounding regions have experienced complex plate interactions with significant seismic and volcanic activities. The Taupo volcano on the North Island of New Zealand has experienced multiple catastrophic eruptions ...
Genti Toyokuni, Dapeng Zhao
doaj   +1 more source

Impacts of climate change on temperature and dissolved oxygen in an oligotrophic deep lake

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Climate change has significant effects on freshwater ecosystems, including lakes, influencing key water quality indicators such as water temperature and dissolved oxygen concentrations (DO). This study uses a 3D hydrodynamic model (AEM3D) coupled with a simple biogeochemical module (iWQ) alongside observations to examine historical changes in ...
Aidin Jabbari, Piet Verburg, David Plew, Simon D. Stewart, Mat Allan, Christian Zammit   +5 more
wiley   +1 more source

Marine Sediment Record of Eruption‐Fed Vertical Density Currents, Kermadec Arc (Rangitāhua)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Products of explosive volcanism can be transported into the oceans, where they form marine tephra layers. The processes responsible for their deposition are often complex, involving multiple transport mechanisms. During the RV Investigator voyage IN2022‐V02 (2022), a 35‐cm‐thick marine tephra unit was piston‐cored at 2,460 m water depth in the
Janne M. Scheffler, Martin Jutzeler, Steffen Kutterolf, Rebecca J. Carey, Josephin Wolf, Jacek Raddatz, Kuo‐Lung Wang, Hao‐Yang Lee   +7 more
wiley   +1 more source

A prolonged hydrothermal past at Santorini Caldera revealed by sedimentary trace metal and microbial signatures

Nature Communications
Hydrothermal systems in volcanic calderas are critical in signalling volcanic unrest, forming ore deposits, and sustaining chemosynthetic microorganisms.
Sofia Della Sala, Vasiliki Papadimitriou, Paraskevi Polymenakou, Steffen Kutterolf, Joost Frieling, David M. Pyle, Tamsin A. Mather, Stephanos Kilias, Christopher K. Jones, Tim Druitt, Jonas Preine, Christian Hübscher, Paraskevi Nomikou, Olga Koukousioura, Thomas A. Ronge, Sarah Beethe, Katharina Pank, Carole Berthod, Hehe Chen, Shun Chiyonobu, Acacia Clark, Susan DeBari, Ralf Gertisser, Raymond Johnston, Michael Manga, Molly McCanta, Iona McIntosh, Ally Peccia, Masako Tominaga, Yuzuru Yamamoto, Adam Woodhouse, Alexis Bernard, Tatiana Fernandez Perez, Kumar Batuk Joshi, Günther Kletetschka, Antony Morris, Xiaohui Li, Dimitrios Papanikolaou   +37 more
doaj   +1 more source