Results 61 to 70 of about 833,719 (109)

Elemental Mapping Reveals Selective Dolomitization in Tonian Stromatolites: Implications for Early Diagenesis and Paleoenvironmental Proxies

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Stromatolites archive critical information on Precambrian marine environments, but their geochemical signals are often obscured using complex diagenetic processes. Tonian stromatolites from the Weiji Formation, North China, show selective dolomitization in dark stromatolitic laminae, forming zoned dolomites.
Ziheng Liang, Meng Ning, Chenqing Li, Xia Wang, Chaochao Xing   +4 more
wiley   +1 more source

Preorders on maximal chains: hyperplane arrangements, Cambrian lattices, and maximal green sequences

We study preorders on (equivalence classes of) maximal chains in the general context of polygonal lattices endowed with suitably nice edge labellings. We show that, given a quotient of polygonal lattices, such edge labellings descend to the quotient, and that there is an induced order-preserving surjective map on the preordered sets of equivalence ...
Gorsky, Mikhail, Williams, Nicholas J.
openaire   +2 more sources

Stokes posets and serpent nests

, 2015
We study two different objects attached to an arbitrary quadrangulation of a regular polygon. The first one is a poset, closely related to the Stokes polytopes introduced by Baryshnikov.
Chapoton, Frédéric
core   +1 more source

Laboratory‐Constrained Seismic Properties of the COSC‐2 Borehole, Scandinavian Caledonides: Implications for Crustal Anisotropy and Reflectivity

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Seismic surveys are essential for studying the Earth's subsurface. However, the interpretation of seismic surveys requires a link between field data and rock physical properties by linking laboratory‐derived data from drill core samples with borehole information and seismic images.
Markus Rast, Claudio Madonna, Nora Schweizer, Bjarne S. G. Almqvist, Jonas B. Ruh   +4 more
wiley   +1 more source

Viscosity of Dry and Hydrous Diopside Melts at High Pressures: Implications for Upper Mantle Magma Dynamics

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Viscosity of silicate melts governs magma transport and influences mantle dynamics, yet effects of pressure and water on melt viscosity remain poorly understood. Here, we report in situ falling‐sphere viscosity measurements on diopside (Di) melts with 0–3 wt.% H2O along the liquidus up to 7 GPa and 2103 K using synchrotron X‐ray radiography ...
Qi Chen, Bin Zhao, Tony Yu, Aaron Wolfgang Ashley, Yanbin Wang   +4 more
wiley   +1 more source

Rock‐buffered versus fluid‐buffered geochemistry of structurally controlled, hydrothermal dolomite: Insights from the Sichuan Basin, China

Sedimentology, Volume 72, Issue 7, Page 2087-2120, December 2025.
ABSTRACT Structurally controlled hydrothermal dolomitization, commonly driven by high‐pressure, high‐temperature fluid–rock reactions, offers insights into the tectonic evolution of sedimentary basins and the geochemical composition of their diagenetic fluids.
Huachuan Jiang, Jintong Liang, Karem Azmy, Cole A. McCormick, Taiyuan Fan, Xiaotian Li, Fei Huo, Huaguo Wen   +7 more
wiley   +1 more source

Multiscale NMR Characterization in Shale: From Relaxation Mechanisms to Porous Media Research Frontiers

Energy Science &Engineering, Volume 13, Issue 11, Page 5777-5798, November 2025.
ABSTRACT Nuclear magnetic resonance (NMR), as an advanced non‐destructive and rapid measurement technology, has shown unique advantages in the evaluation of unconventional shale reservoirs. This paper systematically introduces the fundamental principles of NMR spectroscopy and relaxation theory in porous media and comprehensively analyzes the ...
Long Zhou, Guangzhi Liao, Ruiqi Fan, Rui Mao, Xueli Hou, Nan Li, Zhilong He, Yushu Zhang, Lizhi Xiao   +8 more
wiley   +1 more source

Exploring the Spatial Limits of Extracellular Vesicles‐Mediated Intercellular Communication

Journal of Extracellular Vesicles, Volume 14, Issue 11, November 2025.
ABSTRACT Extracellular vesicles (EVs) are biological nanovectors that retain molecular signatures of their cells of origin and mediate intercellular communication, resulting in ideal platforms for the development of diagnostic tools and bio‐inspired drug delivery technologies.
Federico Colombo, Kartik Nimkar, Erienne Grace Norton, Francesca Lovat, Emanuele Cocucci   +4 more
wiley   +1 more source

Nanoscale Wear Mechanism of a Single α‐Quartz Gouge Particle and Its Role in Friction Evolution

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract Nanoscale gouge particles are common products during both rock friction experiments and natural fault slip. However, the frictional wear mechanisms of nanoscale gouge particles and their role in the evolution of fault shear strength remain poorly understood. Therefore, we employed the molecular dynamics method to simulate a series of nanoscale
Sheng Li, Eiichi Fukuyama
wiley   +1 more source

Transition From Plastic Flow to Fracture During Shear Collision of Nanoscale α‐Quartz Asperities

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract Fault slip commonly leads to the collision and wear failure of asperities across broad length scales. Clarifying the multiscale wear failure mechanisms of asperities is essential for understanding the underlying principle of fault friction behavior.
Sheng Li, Eiichi Fukuyama
wiley   +1 more source