Results 31 to 40 of about 194 (151)

The Effect of Temperature and Physical State of Water on the Frictional Properties of Chlorite‐Altered Basaltic Gouges (Krafla Geothermal Field, Iceland)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Changes in the physical state of water may alter fault frictional properties in high‐temperature geothermal systems, yet they have been little studied. Here, we perform slide‐hold‐slide experiments to examine the frictional properties (frictional strength μss and frictional healing Δμ) of chlorite‐altered basalt from Krafla Geothermal Field ...
W.‐H. Wu, W. Feng, R. Gomila, T. Tesei, A. K. Mortensen, G. Di Toro   +5 more
wiley   +1 more source

Scientific results from the deepened Lopra-1 borehole, Faroe Islands: The regional distribution of zeolites in the basalts of the Faroe Islands and the significance of zeolites as palaeotemperature indicators [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2006
The first maps of the regional distribution of zeolites in the Palaeogene basalt plateau of the Faroe Islands are presented. The zeolite zones (thomsonite-chabazite, analcite, mesolite, stilbite-heulandite, laumontite) continue below sea level and reach ...
Jørgensen, Ole
doaj  

X‐ray computed tomography study of terrestrial analog cores in preparation for Mars sample return

Meteoritics &Planetary Science, Volume 61, Issue 3, Page 405-426, March 2026.
Abstract Mars Sample Return (MSR) is expected to transform planetary science by providing unprecedented access to pristine Martian material. Initial characterization in the sample receiving facility (SRF) will rely on nondestructive techniques such as X‐ray computed tomography (XCT) to document the condition, distribution, and internal features of ...
Sophie Benaroya, Christopher D. K. Herd, David T. Flannery, Nicolas Randazzo   +3 more
wiley   +1 more source

Palagonitization of Volcanic Rocks in Polar Climates: The Case of Deception Island (Antarctica)

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract A detailed study of palagonitization in rocks from Deception Island—one of Antarctica's most active volcanoes—has been performed to advance our understanding of this alteration process. A detailed petrographic (optical and SEM), mineralogical (XRD), and mineral and glass spot geochemistry (EDS and EMP) characterization has been conducted on ...
Oriol Vilanova‐Pagès, Guillem Gisbert, Helena Albert, Adelina Geyer, Meritxell Aulinas, Raquel Arasanz, Jordi Ibañez‐Insa, Antonio Polo‐Sánchez, Antonio Álvarez‐Valero, Olga Prieto‐Ballesteros, Santiago Giralt   +10 more
wiley   +1 more source

Carbon Isotope and Abundance Systematics Reveal an Insignificant Crustal Sink of Mantle‐Derived CO2 in On‐Land Rift Zone Geothermal Systems

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Rift zones, both on land and submarine, are key pathways for mantle‐derived CO2 degassing to the Earth's surface. Fixation of CO2 as carbonates plays a critical role in regulating these emissions. This study examines carbon abundance and isotope compositions in hydrothermal fluids, altered rocks, and carbonates from geothermal systems in both ...
Barbara I. Kleine‐Marshall, Maud J. Smit, Diego I. Toro Vivanco, Emilie Thomassot, Nico Müller, Ann Marie di Stefano, Emily Pope, Tod E. Waight, Heejin Jeon, Martin J. Whitehouse, Kevin Padilla, Frauke Wiese, Thráinn Fridriksson, Halldór Ármansson, Sveinborg H. Gunnarsdóttir, Kiflom G. Mesfin, Ásgerður K. Sigurðardóttir, Jens Fiebig, Andrea Ricci, Jóhann Gunnarsson‐Robin, Sæmundur A. Halldórsson, Shuhei Ono, Árný E. Sveinbjörnsdóttir, Andri Stefánsson   +23 more
wiley   +1 more source

Use of native stilbite zeolite coupled with vermicompost for improving soil chemical properties and yield of barley (Hordeum vulgare L.) grown on Aridic Calciusterts of Northern Ethiopia

Discover Sustainability
Nutrient deficiency and bioavailability in the low-carbon and alkaline soils of semiarid areas of Ethiopia are serious problems. Identifying novel approaches to managing soil fertility helps reverse soil degradation, thereby bolstering crop productivity ...
Abeba Nigussie Retta, Mitiku Haile, Girmay Gebresamuel, Amanuel Zenebe, Gebreyohannes Girmay, Fassil Kebede   +5 more
doaj   +1 more source

Rock Magnetic Evidence for the Seismogenic Environment of Large Earthquakes in the Motuo Fault Zone, Eastern Himalayan Syntaxis

Acta Geologica Sinica - English Edition, Volume 99, Issue 3, Page 896-907, June 2025.
Abstract Knowledge of the seismogenic environment of fault zones is critical for understanding the processes and mechanisms of large earthquakes. We conducted a rock magnetic study of the fault rocks and protoliths to investigate the seismogenic environment of earthquakes in the Motuo fault zone, in the eastern Himalayan syntaxis.
Yong CAO, Zhiming SUN, Yang GAO, Jian LIU, Bin LI, Yuhan YANG, Hao YE, Peng XU   +7 more
wiley   +1 more source

Unearthing waste resources: Nano‐adsorbents from complex packaging waste for fluoride detoxification of water

Journal of the American Ceramic Society, Volume 108, Issue 1, January 2025.
Abstract This study investigates the synthesis and characterization of Al2O3 nanoparticles derived from multilayered packaging (MLP) waste, specifically postconsumer coffee capsules, and evaluates their efficacy in fluoride adsorption from aqueous solutions.
Bikesh Ghinangju, Rumana Hossain, Veena Sahajwalla   +2 more
wiley   +1 more source

Box–Behnken experimental design for optimization of chitosan foam materials reinforced with cellulose and zeolite

Biofuels, Bioproducts and Biorefining, Volume 18, Issue 5, Page 1107-1120, September/October 2024.
Abstract Foam materials produced from biopolymers stand out as a more environmentally friendly insulation material solution. This study presents a comprehensive investigation into the development and optimization of chitosan‐based foam materials using a Box–Behnken design.
Rıfat Kurt, Halime Ergun, Mehmet Emin Ergun, Abdullah Istek   +3 more
wiley   +1 more source

Frictional Stability of Laumontite Under Hydrothermal Conditions and Implications for Injection‐Induced Seismicity in the Gonghe Geothermal Reservoir, Northwest China

Geophysical Research Letters, Volume 51, Issue 10, 28 May 2024.
Abstract Laumontite is a common and potentially frictionally unstable hydrothermal alteration product present in deep faults of the Gonghe EGS reservoir. We characterize the friction‐stability characteristics of synthetic laumontite gouge under in situ reservoir conditions. The pure laumontite gouge is frictionally strong (μ = 0.73–0.98) and the quartz/
Chongyuan Zhang, Zijuan Hu, Derek Elsworth, Lei Zhang, Hao Zhang, Linyou Zhang, Manchao He, Leihua Yao   +7 more
wiley   +1 more source