Results 51 to 60 of about 5,043 (208)

The Impact of Double Subduction on Plate Velocity and Euler Pole Shifts: Insights From Spherical Subduction Models

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Same‐dip double subduction (SDDS), in which two parallel slabs dip in the same direction, has been linked to accelerated plate motion in both modern and ancient convergent systems, such as the Late Cretaceous Africa–Eurasia system. Yet a systematic framework for quantifying how SDDS alters plate kinematics in a large‐scale spherical geometry ...
Zonglin Guo, Adam F. Holt, Derya Gürer
wiley   +1 more source

Fault-Related Controls on Upward Hydrothermal Flow: An Integrated Geological Study of the Têt Fault System, Eastern Pyrénées (France)

Geofluids, 2017
The way faults control upward fluid flow in nonmagmatic hydrothermal systems in extensional context is still unclear. In the Eastern Pyrénées, an alignment of twenty-nine hot springs (29°C to 73°C), along the normal Têt fault, offers the opportunity to ...
Audrey Taillefer, Roger Soliva, Laurent Guillou-Frottier, Elisabeth Le Goff, Guillaume Martin, Michel Seranne   +5 more
doaj   +1 more source

Uranium Minerals in the Radlovac Series Metasediments at Mt. Papuk, Croatia

Geologia Croatica, 2008
Applying a combination of different methods – X-ray diffraction, scanning electron microscopy, gamma-spectroscopy and X-ray spectroscopy, a suite of uranium minerals, meta-torbernite, meta-uranospinite and meta-zeunerite was identified in ...
Stjepan Šćavničar, Vladimir Bermanec, Goran Kniewald, Delko Barišić, Višnja Oreščanin   +4 more
doaj   +1 more source

Evaluating Forced Versus Plume‐Induced Subduction Initiation for the Talkeetna‐Bonanza Arc System: Implications for Permo‐Triassic Paleogeography of the North American Cordillera

Tectonics, Volume 45, Issue 9, September 2026.
Abstract The mechanisms by which new subduction zones form remain highly debated. Here we use Permo‐Triassic strata to evaluate potential mechanisms for initiation of the Talkeetna‐Bonanza Arc of the northern North American Cordillera. New mapping and analysis of Permian and Upper Triassic strata on the Alaska Peninsula suggest a period of uplift ...
Brandon M. Keough, Michael P. Eddy, Kenneth D. Ridgway   +2 more
wiley   +1 more source

Petro-structural geology of the Northern Adula Nappe Complex (Central Penninic Alps, Switzerland)

Journal of Maps
The Adula Nappe Complex is the largest fragment of Penninic continental crust in the Central Alps, where it deformed alongside the Valais Ocean ophiolites and metasediments.
Fabio Zulbati
doaj   +1 more source

Developing Habitat Descriptors for a Threatened Cryptic Worm‐Lizard to Determine Potential Habitat Under the NSW Biodiversity Offset Scheme in Australia

Ecological Management &Restoration, Volume 27, Issue 3, September 2026.
ABSTRACT Understanding the habitat requirements and potential distribution of threatened species is fundamental to mitigating threats and protecting significant populations. In Australia, a range of studies have been undertaken into the ecology and habitat requirements for the nationally threatened pink‐tailed worm‐lizard (Aprasia parapulchella) in the
Rob Armstrong, Nat O'Rourke, Robert Speirs, Willliam Terry, Shannon Simpson, Damian R. Michael   +5 more
wiley   +1 more source

Resolving Micrometre‐Scale Zircon Growth in Silicic Systems by 7 μm LA‐MC‐ICP‐MS U‐Pb Dating: Linking Petrology and Geochronology in Silicic Volcanic and Granitic Rocks from Victoria, Australia

Geostandards and Geoanalytical Research, Volume 50, Issue 3, Page 625-647, September 2026.
Key Points 7 μm spot‐diameter LA‐MC‐ICP‐MS analyses yield accurate zircon U‐Pb ages. 1013 Ω amplifier resistors improve low‐signal Pb measurements. Saturn correction protocols minimise down‐hole fractionation effects. We present a systematic evaluation of high spatial‐resolution zircon U‐Pb dating using a Thermo Scientific Neoma multi‐collector ICP‐MS ...
Cristiano Lana, John D. Clemens
wiley   +1 more source

Metamorphic Reactivity Influences Amphibole Creep Behaviour

Journal of Metamorphic Geology, Volume 44, Issue 8, Page 611-632, September 2026.
ABSTRACT The rheological behaviour of solid‐solution minerals may play an important role in determining how metamorphic crust accommodates deformation. Whether or not a mineral's deformation is diffusion or dislocation‐mediated depends on a range of extrinsic variables such as stress, strain rate and temperature, as well as intrinsic variables such as ...
Alix Osinchuk, Brendan V. Dyck, Jesse B. Walters   +2 more
wiley   +1 more source

Chlorine isotope constraints on fluid‐rock interactions during subduction and exhumation of the Zermatt‐Saas ophiolite

Geochemistry, Geophysics, Geosystems, 2013
Chlorine isotope compositions of high‐pressure (∼2.3 GPa) serpentinite, rodingite, and hydrothermally altered oceanic crust (AOC) differ significantly from high‐ and ultrahigh‐pressure (> 3.2 GPa) metasedimentary rocks in the Aosta region, Italy ...
J. Selverstone, Z. D. Sharp
doaj   +1 more source

Geophysical update of the diameter of the Zhamanshin impact structure, Kazakhstan

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2284-2302, September 2026.
Abstract The rim of the 0.9‐Ma‐old Zhamanshin impact crater in Kazakhstan is considered to be almost completely exposed via a series of hills surrounding a central flat area, indicating an apparent diameter of 14 km. This would make Zhamanshin the second largest impact crater of the Quaternary period. However, the overall geometry of these hills is not
Yoann Quesnel, Dilyara M. Kuzina, Jérôme Gattacceca, Minoru Uehara, Ayrat G. Kharisov, Dmitry D. Badyukov, Pierre Rochette   +6 more
wiley   +1 more source