Predicting fractures in glacially related fine-grained materials and a synthetic soil of bentonite and sand using soil texture

Abstract

Scientists and engineers from many disciplines have been studying the formation of fractures in fine-grained natural geologic materials and fill. Naturallyoccurring fractures in the fine-grained materialscan create preferential flow paths, which can allow water to infiltrate quickly, resulting in recharge to underlying aquifers but also allowing contaminants to pass through to aquifers, potentially threatening ground water drinking water sources. They can also create zones of weakness that allow piping in dams and slip zones in fill materials. Glacially related fine-grained materials are widely distributed across the northern hemisphere,including the U.S. states of Minnesota,

Mineralogical and Physico-Chemical Characterization of the Oraşu-Nou (Romania) Bentonite Resources

“…This study of the Oraşu Nou bentonite reveals a good quality raw material that can be used in many fields of activity: agriculture [22] to immobilize fungicides or insecticides [25], inactivate heavy metals in polluted soils, especially zinc [28], nuclear waste storages [32,33].…”

“…In agriculture, it enhances sandy soils, helping water retention, and, after drying-out, soil aeration; or it can be used as a feed supplement for animals [21,22]. Plant nutrition is also sustained by intermediation of base ion exchange, gradual fertilizer desorption and retention of pesticides [23,24].…”

Transport of Tracers and Pesticides Through Fractured Clayey Till: Large Undisturbed Column Experiments and Model‐Based Interpretation

“…Glacial deposits such as clayey tills are often found in the upper geological layers in many countries of the Northern hemisphere (Høyer et al., 2019; Jørgensen et al., 2002; Kim et al., 2017; McKay, Gillham, et al., 1993; Parker et al., 1994; Young et al., 2021). Usually, clayey tills have a low hydraulic conductivity and can slow down solute migration, or even act as a barrier for contaminant leaching toward groundwater bodies (Chapman et al., 2018).…”