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481
Assessing the Effect of Saturation Variations on the Factor of Safety of Slopes in Elgon Sub-Region.
Published 2024“…Silty/clay-rich soils dominate the region, but their fine-grained nature leads to reduced shear strength. …”
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482
Large-scale Cosmic-ray Anisotropies with 19 yr of Data from the Pierre Auger Observatory
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483
Experimental Investigation of the Dependence of Accessible Porosity and Methane Sorption Capacity of Carbonaceous Shales on Particle Size
Published 2020-01-01“…It may also be due to increased swelling abilities of clay minerals and organic matter upon destruction of the stabilizing rock fabric with decreasing particle size. …”
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484
A Rapid Cu Enrichment Mechanism from Cu-Bearing Brine in Kuqa Basin, Xinjiang, China: Controlled by Crystallized Sequence of Saline Minerals
Published 2021-01-01“…It is shown that green Cu mineral coexisting with halite and gypsum occurred in the fractured fault belts of sandstones or was precipitated with halite on the surface of maroon clay in the scallops of sandstone. By SEM, EDS, and geochemical analysis methods on Cu-mineralized solid samples and brines, respectively, combined with previous geological evidence, our studies demonstrate that green Cu mineral is paratacamite, and it occurred with gypsum, halite, secondary glauberite, natural copper, and probably lead chloride on the fractured fault belts of sandstones or surface of clay. …”
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485
Assessing Drainage Performance of Turfgrass Rootzone in Sports Fields
Published 2024-12-01“…It was observed that 2 cm layer was formed under the turfgrass in rootzones with 80% sand + 20% sitl+clay mixture by slowing water drainage and negatively affecting infiltration, making it unsuitable for sports fields. …”
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486
Characterization and classification of soils in the irrigable land of Achewa small-scale irrigation area, Itang special district, southwest Gambella, Ethiopia
Published 2025-01-01“…Across horizons, texture classes varied from clay loam to clay, whereas bulk density was within acceptable limits for mineral agricultural soils. …”
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487
Characteristics and Origin of Methane Adsorption Capacity of Marine, Transitional, and Lacustrine Shales in Sichuan Basin, China
Published 2021-01-01“…This is primarily related to the low thermal evolution degree and the high content of water-bearing clay minerals. Smectite has the highest methane adsorption capacity of the clay minerals, due to its crystal structure. …”
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488
Determination of the Engineering Properties of Submarine Soil Layers in the Bohai Sea Using the Piezocone Penetration Test
Published 2018-01-01“…The laboratory test results of the undrained shear strength, clay sensitivity, and the OCR match the CPT test results best when the parameters Nkt, Ns, and k are 15, 6, and 0.3, respectively. …”
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489
Identification of Subsurface for Grounding Installation System Using Geoelectrical Method: Case Study of Waru Substation, Sidoarjo, East Java
Published 2025-01-01“…The results of the 2D resistivity cross section show that the subsurface layer is water saturated wet clay with a resistivity value of 0 Ωm -2 Ωm and wet clay with a resistivity value of 3 Ωm - 6 Ωm. …”
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490
Hierarchical Stratification for Spatial Sampling and Digital Mapping of Soil Attributes
Published 2025-01-01“…The attributes assessed included phosphorus (P), potassium (K), and clay content. Results showed that the 50% guided sample configuration improved ordinary kriging interpolation accuracy, particularly with sparse grids. …”
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491
Experimental Investigation on Organic Matter Orientation Characteristics of Terrestrial and Marine Shale in China
Published 2021-01-01“…While the compaction of the layered clay particles is the dominating mechanism leading to the strong directional alignment of the OM grains in terrestrial shale samples from C-7.…”
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492
Effects of poultry manure on soil infiltration, organic matter contents and maize performance on two contrasting degraded alfisols in southwestern Nigeria
Published 2024-01-01“…Method Six treatments of poultry manure were applied in split at 0 Mg/ha, 2 Mg/ha, 4 Mg/ha, 6 Mg/ha, 8 Mg/ha, and 10 Mg/ha, in replicate under a completely randomized design to clay loam (CL) and sandy clay loam (SCL) soils, at 3, 6, 9, and 12 weeks after the initial application. …”
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493
Micro-mechanism analysis of Zhongchuan loess liquefaction disaster induced by Jishishan M6.2 earthquake in 2023
Published 2025-02-01“…The research shows that compared with red silty clay, the dynamic index of loess corresponding to the physical indices of Zhongchuan loess obviously exceeds the critical threshold of liquefaction under actual seismic intensity. …”
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494
Mechanical-Chemical-Mineralogical Controls on Permeability Evolution of Shale Fractures
Published 2018-01-01“…The experimental observations imply that (1) CO2-rich aqueous fluids have significant impact on the evolution of fracture permeability and may influence (and increase) shale gas production; (2) shale mineralogy, especially calcite mineral, decides the chemical reaction and permeability increasing when CO2-rich aqueous fluids flow through fractures by free-face dissolution effect; (3) clay mineral swelling reduces fracture aperture and additively calcite pressure solution removes the bridging asperities, which are the main reasons for fracture permeability decrease; (4) competition roles among clay mineral swelling, mineral pressure solution, and free-face dissolution determine how fracture permeability changes. …”
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495
Soil Stabilization Using Terrasil And Zycobond on Ijikoyejo Street Surulere Lagos State Nigeria
Published 2025-02-01“… Deep excavation of unsuitable soil in road construction have resulted in escalation of the cost of soil exchange and total project sum of construction, one of the possible ways of cost reduction is to stabilized the existing subgrade material (sandy silty-clay) by using the mixture of terrasil, zycond and water. …”
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496
Experimental Study on Spontaneous Imbibition Characteristics of Fracturing Fluid at Cores from Different Layers in Fuling Shale Gas Reservoir
Published 2021-01-01“…The higher the clay mineral content, the higher the imbibition velocity. …”
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497
Florida Scorpionfly, Panorpa floridana Byers (Insecta: Mecoptera: Panorpidae)
Published 2012-10-01“…Knowledge of this species of scorpionfly is limited to five specimens from Alachua and Clay counties in northern peninsular Florida, the last one collected in 1982. …”
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498
Florida Scorpionfly, Panorpa floridana Byers (Insecta: Mecoptera: Panorpidae)
Published 2012-10-01“…Knowledge of this species of scorpionfly is limited to five specimens from Alachua and Clay counties in northern peninsular Florida, the last one collected in 1982. …”
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499
Spatial Changes in Soil Nutrients in Tea Gardens from the Perspective of South-to-North Tea Migration: A Case Study of Shangluo City
Published 2025-01-01“…Significant differences in pH, SOM, TN, TP, TK, silt, and sand were observed at varying elevations, while TN, TP, TK, clay, silt, and sand varied significantly across different latitudes. …”
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500
The spirit with no anus and the pots that fart: ceramics of life and death in Northwest Amazonia
Published 2023-07-01“…This paper takes as its starting point the story of a spirit with no anus whose inability to fart leads to his death and transformation into clay. In particular, it examines the relationship between pottery trumpets associated with this spirit (played in exchange ceremonies) and bark Jurupary trumpets and suggests that the two instruments stand in a relationship of “flesh” and “bone”. …”
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