Stabilization of aeolian sand using a full-solid-waste supersulfated cement based on electrolytic manganese residue: Mechanical and environmental assessment

Multi-scale synergistic enhancement mechanism of nano-silica: Research on improving the durability of aeolian sand concrete under chloride salt erosion-freeze-thaw coupling effect

Aeolian sand flow characteristics and erosion mechanism of the disturbed stubble-soil complex after straw harvesting

The origin of loess microstructure: 3D insights from initial aeolian dust packing

The late Pliocene spatial distributions of proto-Mu Us sand fields margin indicated from the spatial grain size variation of aeolian sediments in the Chinese loess Plateau

Understanding aeolian processes across sand dunes with varying stoss slope: Wind tunnel experiments

Durability and damage evolution of cement-fly ash stabilized aeolian sand gravel under high-temperature curing and freeze-thaw cycles.

The Pool Burn basin is a tectonic depression that became almost isolated from the regional drainage system by river reorientation during Pleistocene uplift of surrounding ridges. Consequently, detrital gold in the basin was largely locally derived, from supergene zones on orogenic deposits and recycled from paleoplacers in erosional remnants of Miocene conglomerates, with the latter source predominant. This study documents the results of wind‐driven sand‐blasting of gold in an unusual inland occurrence of this process. These aeolian processes operated on original detrital thick flakes (800–50 µm). Interiors of these original particles had relatively coarse‐grained (~50 µm) silver (Ag)‐bearing gold cores surrounded by fine‐grained (~10 µm) recrystallised low‐Ag rims. Sand‐blasting of thick flakes exposed on the eroded unconformity between basement and Miocene conglomerates has transformed them into toroidal and spheroidal shapes creating delicate exterior gold protrusions and sheets with micron‐scale grain size. Hollow interior embayments contain kaolinite clay with dispersed micron‐scale biogeochemically mediated authigenic gold that formed under acid and alkaline pH and locally saline conditions. The inland aeolian gold is similar to, but distinct from, the more delicate shapes that enclose smectite clay in hollow aeolian gold derived from thin flakes on southern South Island beaches.

To investigate the distribution and evolution characteristics of the internal temperature field in a geosynthetic-reinforced soil (GRS) retaining wall, this study conducted a model test of a GRS retaining wall under temperature cycling based on the climatic conditions of the Taklimakan Desert, and established numerical model. Following validation of the numerical model, a full-scale model considering solar radiation effect was further developed to analyze the evolution characteristics of the temperature field inside the wall over five annual temperature cycles. The results show that the poor thermal conductivity of dry aeolian sand causes a lag in the extreme temperature values at monitoring points relative to the ambient temperature, with the lag time increasing as the number of cycles accumulates. As the number of temperature cycles increases, both the vertical frost depth and horizontal frost thickness within the wall gradually increase. During a complete annual cycle, the temperature field transitions from hyperbolic to frozen core and back to hyperbolic distribution as ambient temperature rises. Conversely, it shifts from hyperbolic to heated core and back to hyperbolic distribution during cooling. The temperature curves on horizontal cross‑sections within the wall can be used to identify temperature‑sensitive zones, though their specific characteristics are influenced by factors such as ambient temperature and thermal parameters of the backfill material. This study provides a theoretical basis and data support for the design and maintenance of reinforced soil retaining walls in desert regions.

Pampean loess represents one of the most important terrestrial sedimentary archives of climate change in the Southern Hemisphere, providing information on past dust dynamics and wind circulation patterns over the last million years. This article complements previous work on the loess deposits of the Pampean Plains by presenting new high‐resolution magnetic susceptibility and grain‐size data for two high‐elevation loess–paleosol sections in the Sub‐Andean Ranges and Sierras Pampeanas Plateau of Argentina. High background magnetic susceptibility is attributed to the andesitic and basaltic composition of the source rocks. Field observations, magnetic susceptibility and grain‐size analyses highlight distinct loess–paleosol layers preserved within the high‐elevation sections, contrasting with the more homogenous deposits of the lowland Pampean Plains. Grain‐size distributions are multimodal on the plains, linked to diverse dust sources and wet deposition under humid conditions, while fine subpopulations dominate in high‐elevation sections, reflecting subtropical jet stream‐driven dry deposition. Magnetic susceptibility analysis suggests possible wind‐vigour enhancement from intensified wind strength in loess from the Sierras Pampeanas Plateau, while pedogenic enhancement and magnetic depletion from weathering is observed in loess from the Sub‐Andean Ranges. These findings emphasise the role of topography and atmospheric dynamics in shaping aeolian sediment records.

Aeolian transport, in which turbulent wind shearing over a granular bed causes grains to hop or roll along the bed, is a major mechanism controlling bedform evolution and desertification processes. Predictions of transport rates have significantly advanced in recent years, but none of the theoretical models has managed to provide accurate predictions of aeolian transport over a wide range of wind conditions. Here, we develop a theory, based on the physics of different transport regimes, that accounts for the linear and nonlinear scaling exhibited by aeolian sand transport, capturing quantitatively the contribution of these regimes to the total transport for a wide range of wind velocities. Our theoretical predictions are in very good agreement with experimental results for a large range of wind strengths.

Experimental investigation into the role of particle morphology in the strength and dilatancy behaviour of aeolian dune sand

Impact of a large-scale desert photovoltaic power plant on aeolian saltation and dust emission

Sustainable concrete design via aeolian sand valorization: Multiscale durability evolution and service life prediction under sulfate attack

Multiple thermophysical effects of aeolian sand cover on permafrost under climate warming and wetting

Influence Mechanism of Aeolian Sand on Capillary Water Absorption Characteristics of Concrete and Grey Entropy Prediction of Aperture Sensitivity

Modification of offshore wind flow and aeolian sand transport by artificial foredunes

Mechanism of the changes in pore water components and pore size of aeolian sand during freeze–thaw cycles on the Qinghai-Xizang Plateau

Provenance changes of Quaternary fillings and geomorphic processes of modern aeolian sand formation in the Hailar Basin, NE China

Abstract Blowouts are geomorphic features formed through the interplay of aeolian processes, vegetation cover and anthropogenic disturbance. Although the basic dynamics of airflow over blowouts under unidirectional winds are relatively well understood, fine‐scale airflow patterns under bi‐directional wind regimes remain poorly characterised. This study investigates airflow dynamics within a small trough blowout located in the coastal dune system of Canet‐en‐Roussillon (SE France), where foot traffic has modified the original morphology. Wind data were collected using 26 anemometers deployed across and within the blowout, capturing spatial and vertical variations during both offshore and onshore wind events. The blowout exhibits a bifurcated morphology that alters airflow asymmetrically: offshore winds are steered oblique to the shoreline and sustain acceleration along the main axis (pattern [c]), whereas onshore winds generate more parallel flow, resulting in deceleration and turbulence (pattern [a]). This contrast gives rise to distinct internal flow structures, flow bifurcation under offshore winds and widespread near‐surface disturbance under onshore winds. A shallow, disturbed near‐surface flow develops within the blowout, constrained vertically by blowout dimensions, and decoupled from the more coherent higher and above‐blowout flows aligned with the incident wind. Peak velocities for both wind directions are observed in the constricted throat region (pattern [b]), though classic jet flow does not develop, likely due to bifurcation and throat morphological constraints. These findings highlight the sensitive coupling between blowout morphology, wind regime and anthropogenic alteration in shaping airflow behaviour within a small trough blowout.