Results 111 to 120 of about 536,264 (226)
Thermo‐Mechanical Controls on Central‐Vent Caldera Collapse
Abstract Large‐scale magmatic systems are associated with catastrophic caldera‐forming eruptions, posing hazards to millions near active volcanoes. Despite occurring across a range of sizes, the physics driving caldera collapse remain incompletely understood. While large calderas have received considerable attention, moderately sized calderas (∼5–10 km)
Pascal S. Aellig +2 more
wiley +1 more source
Brine Entrainment During Ice Shell Growth on Icy Worlds
Abstract The role of ocean composition in governing ice shell growth and ocean longevity on icy satellites remains poorly constrained. To address this, we develop a thermomechanical model of small to mid‐sized icy worlds that simulates ice shell growth from a saline ocean, explicitly quantifying brine entrainment through a parameterization of reactive ...
Nina Gilkyson +3 more
wiley +1 more source
Integrative Analysis Uncover the Effects and Multi‐Omics Features of Thigh Muscle Fat Infiltration
Thigh muscle fat infiltration (TMFI), estimated from MRI, is associated with increased mortality and diseases affecting multiple organ systems and mediates the effects of lifestyle factors on health. Multi‐omics analyses delineate the genetic, cellular, transcriptional, proteomic, and metabolic architecture of TMFI.
Yiwei Zhang +12 more
wiley +1 more source
Making Mining Licit: Gold, Commodification, and the Everyday Performance of Law in Colombia
ABSTRACT Ethnographies of resource‐making have shown that the extraction of resource value from objects is premised on obviating the emplaced lifeworlds that surrounded objects before they traveled to consumer markets. Much of this literature looks at such supply‐chain disentanglement from the viewpoint of corporate and formal regulatory practices ...
Jesse Jonkman
wiley +1 more source
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
Microstructural Analyses of Salt‐Glazed Ceramics
ABSTRACT Defining features of certain salt‐glazed studio pottery are a surface texture akin to orange peel, with mm‐scale dimples across the ware, and fine‐scale cracking within the salt glaze. There is remarkably little information in the scientific literature to explain the reasons for the formation of the orange peel effect or to specify the length ...
Kevin M. Knowles +2 more
wiley +1 more source
Mixing time of heterogeneities in a buoyancy-dominated magma ocean
International audienceDuring the accretion stage, large impacts provided sufficient energy to melt the entire mantle into a terrestrial magma ocean. Processes occurring in the magma ocean may have led to the formation of heterogeneities still found in ...
Samuel, H. +11 more
core +1 more source
Path diagrams showing the results of piecewise structural equation models examining how fitness (total number of seeds in flowering individuals) of Cerastium fontanum depended on temperature at planting site, temperature difference, mating type, and flowering time (FFD, first flowering date) in each of the two study years.
Alicia Valdés +3 more
wiley +1 more source
Origin of Long‐Wavelength Variations in Crustal Thickness on Rocky Planets
Abstract Long‐wavelength crustal thickness variations are observed on telluric planets, particularly on Mars and the Moon whereas Mercury appears to lack such variations. They may stem from two early‐stage positive feedback mechanisms that can emerge in stagnant‐lid planets.
Valentin Bonnet Gibet, Chloé Michaut
wiley +1 more source
High Melt Fraction Induced by the Dehydration Melting Near the 410‐km Discontinuity
Abstract The water‐rich mantle transition zone, coupled with the low water storage capacity of the upper mantle, suggests that dehydration melting occurs just above the mantle transition zone near the 410‐km discontinuity. However, the melt fraction produced by the dehydration melting process remains poorly constrained.
Juan Chen +5 more
wiley +1 more source

